This section describes how to install the following system components:
Front drive bezel
Diskette drive
Optical and tape drives
Hard drives
Expansion cards
SAS controller card
Memory
Microprocessor
Cooling fans
System battery
Power supply
Chassis intrusion switch
Bezel
I/O panel
System board
Recommended Tools
You may need the following items to perform the procedures in this section:
#2 Phillips screwdriver
Wrist grounding strap
Inside the System
In Figure 3-1, the system cover is opened to provide an interior view of the system.
Figure 3-1. Inside the System
1
power supply
2
heat sink and shroud assembly
3
system board
4
hard drives (2)
5
3.5-inch drive bay
6
tape backup unit
7
5.25-inch drive bays (2)
8
bezel sliding plate release
9
drive cage
10
processor cooling fan
The system board can accommodate one processor, four expansion cards, and four memory modules. The hard drive bays provide space for up to two SAS or SATA hard drives. Drive bays in the front of the system provide space for an optical drive, an optional tape drive or second optical drive, and an optional diskette drive. A controller expansion card is required for SAS hard drives. Power is supplied to the system board and internal peripherals through a single nonredundant power supply.
Opening the System
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Press the power button to ground the system board.
Lay the system on its side as shown in Figure 3-2.
Open the system by sliding the cover release tab toward the rear of the
system and lifting the cover off. See Figure 3-2.
Closing the System
Ensure that all internal cables are connected and folded out of the way.
Ensure that no tools or extra parts are left inside the system.
Reinstall the system cover:
Insert the bottom edge of the cover into the bottom of the system
chassis. See Figure 3-2.
Press down on the cover until the cover release tab snaps into place.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next system start-up:
Alert! Cover was previously opened.
To reset the chassis intrusion detector, press <F2> to enter the System
Setup program. See Using the System Setup Program.
NOTE: If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector.
Figure 3-2. Opening and Closing the System
1
release tab
Front Drive Bezel
The front drive bezel is the cover for the optional diskette and 5.25-inch drives. To remove or install a drive, you must first remove the front drive bezel.
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Removing the Front Drive Bezel
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
With the front drive bezel tilted away from the chassis, place the bottom
tabs of the bezel into their slots of the chassis. Refer to the lower arrow in
Figure 3-3.
Snap the bezel into place.
Figure 3-3. Removing and Replacing the Front Drive Bezel
1
sliding plate
2
front drive bezel
Removing an Insert on the Front Drive Bezel
If you install a drive in the 3.5-inch or 5.25-inch drive bays, first remove the corresponding insert on the front drive bezel. Push the insert gently from the front of the bezel. Then from the back of the bezel, squeeze the tab upward on the end of the insert and rotate the insert away from the bezel. See Figure 3-4.
Replacing an Insert on the Front Drive Bezel
If you remove a drive in the 3.5-inch or 5.25-inch drive bays, replace the corresponding insert on the front drive bezel. From the back of the bezel, fit the tab on the end of the insert into the notch on the bezel and snap the other end of the insert into place. See Figure 3-4.
Figure 3-4. Removing and Replacing the Front Drive Bezel Insert
1
front drive bezel
2
insert tab
3
drive bezel insert
4
screws for an optional 5.25-inch drive (3)
Removing and Inserting Blank Drive Inserts
Depending on the configuration of your system, a blank drive insert might be installed in place of an optical or diskette drive. These are essential for airflow efficiency and for keeping dust out of the system.
You must remove the blank drive insert if you decide to replace it with an optional diskette or optical drive. From the back of the blank drive insert, slide the lever on the sliding plate in the direction of the arrow until the shoulder screw is released. Then pull the PVC tab to remove the blank drive insert.
To replace the blank drive insert, align the bottom of it with the sliding plate and gently push it back until the shoulder screw locks into place. See Figure 3-5.
Figure 3-5. Removing and Replacing the Blank Drive Insert
1
tab
2
blank drive insert
3
drive blank alignment screw
Diskette Drive
The 3.5-inch drive bay supports an optional standard diskette drive.
Removing the Diskette Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Installing a Diskette Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
From the front of the chassis, slide the drive into the drive bay until the
shoulder screws fit into their slots and snap securely into the sliding plate.
Connect the power cable to the drive. See Figure 3-6.
Connect the data cable from the drive to the diskette drive connector
(FLOPPY) on the system board. See Figure 3-8 and Figure 6-2.
Figure 3-8. Cabling the Optional Diskette Drive to the Hard Drive
In the upper 5.25-inch drive bay, you can install only an optical drive. In the lower 5.25-inch drive bay, you can install either an optical or a tape backup unit.
Removing an Optical or Tape Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Disconnect the power and data cables from the back of the drive. See
Figure 3-9 for disconnecting SCSI connections and Figure 3-10 for
disconnecting SATA connections.
Slide the lever on the sliding plate in the direction of the arrow to release
the shoulder screw.
Slide the drive out to remove it from the drive bay.
Figure 3-9. Removing and Installing an Optical or Tape Drive (SCSI Connection)
1
sliding plate
2
optical drive shoulder screw
3
optical drive
4
drive bay screw slots
Figure 3-10. Removing and Installing an Optical (SATA Connection)
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Installing an Optical or Tape Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Unpack the drive and prepare it for installation. For instructions, see the
documentation that accompanied the drive.
If you are installing a SCSI tape drive, you must have a SCSI controller card installed. See Installing an Expansion Card.
NOTE: It is recommended that you install the SCSI controller card in expansion card slot 1 for optimal cable-routing. See Figure 6-2 for the location of expansion card slot 1.
Configure the tape drive according to the documentation that came with the tape drive, based on the following guidelines:
Each device attached to a SCSI host adapter must have a unique
SCSI ID number (narrow SCSI devices use IDs 0 to 7; wide SCSI
devices use IDs from 0 to 15). Set the drive's SCSI ID to avoid
conflicts with other devices on the SCSI bus. For the default SCSI ID
setting, see the documentation provided with the drive.
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.
SCSI logic requires that the two devices at opposite ends of a SCSI
chain be terminated and that all devices in between be unterminated.
Therefore, you enable the tape drive's termination if it is the last
device in a chain of devices (or sole device) connected to the SCSI
controller.
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
Remove the three shoulder screws from the insert, and attach one of them
to the row of holes and two to the bottom row of holes on the drive. See
Figure 3-11.
Figure 3-11. Installing Optical or Tape Drive Shoulder Screws
1
screws (3)
Gently slide the drive into place until you hear a click or feel the drive
securely installed.
Attach the SCSI power cable (see Figure 3-12) or SATA power cable (see
Figure 3-13) to the drive. Ensure that cables are secured in their respective
clips.
Figure 3-12. Cabling SCSI to the Tape Drive
1
expansion slot 1
2
SCSI connector
3
SCSI card
4
front drive bezel
5
tape drive
6
SATA power convert cable
7
top clip on heat sink shroud
8
SCSI cable
9
system board
Figure 3-13. Cabling a SATA Controller to the Optical Disk Drive
1
system board
2
front drive bezel
3
optical disk drive
4
SATA power cable
5
cable clip
6
SATA optical disk cable
Attach the data cable. If you are installing a SCSI tape drive, connect the
SCSI interface cable in the drive kit from the SCSI controller card to the
drive. See Figure 3-12.
Check all cable connections, and fold cables out of the way to allow for
airflow between the fan and cooling vents.
NOTE: The system's drive configuration must consist of all SATA hard drives or all SAS hard drives.
Hard Drive Installation Guidelines
Your system contains up to two SATA or SAS hard drives in internal drive bays. Both drives must be either SAS or SATA; mixed configurations are not supported. Up to two SATA drives may be connected to the system's integrated SATA controller or to an optional SAS controller expansion card. Up to two SAS drives may be connected to an optional SAS controller expansion card. Table 3-1 describes the possible drive configurations.
Table 3-1. Hard-Drive Configurations
Drive Number
Drive Type
Location
Controller
Connector
1
SATA
HDD0
integrated SATA controller
SAS expansion card
SATA_A
HDD0
1
SAS
HDD0
SAS expansion card
HDD0
2
SATA
HDD1
integrated SATA
SAS expansion card
SATA_B
HDD1
2
SAS
HDD1
SAS expansion card
HDD1
Removing a Hard Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Disconnect the hard drive power cable from the hard drive that you are
removing.
Disconnect the blue data cable from the hard drive that you are removing
by pulling up on the blue tab.
Press the blue tabs on each side of the hard-drive bracket toward each
other and slide the drive and its bracket up and out of the bay. See
Figure 3-14.
Figure 3-14. Removing and Installing a Hard Drive in the Drive Carrier
1
hard drive power cable
2
hard drive in primary hard drive bay
NOTE: If you do not intend to replace the drive, it is highly recommended that you remove the drive from the guide bracket (see Figure 3-15) and insert the empty guide bracket back into the drive bay. This eliminates the likelihood that the empty bracket will be misplaced or improperly stored while not in use.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Installing a Hard Drive
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Unpack the replacement hard drive and prepare it for installation.
Check the documentation for the hard drive to verify that the drive is
configured for your system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
If you are replacing a hard drive, remove the drive that you are replacing
(see Removing a Hard Drive).
If there is a hard-drive bracket in the empty hard-drive bay, remove the bracket by pressing the two tabs toward each other and pulling it up and out of the drive bay.
If a replacement hard drive does not have the hard-drive bracket attached, remove the bracket from the old drive.
Snap the new drive into the guide bracket. See Figure 3-15.
Insert the guide bracket assembly into the drive bay until it snaps into
place. See Figure 3-14.
Figure 3-15. Installing a Hard Drive in a Drive Bracket
1
hard drive
2
hard drive bracket
NOTICE: SAS drives and SATA drives cannot be mixed in the system. The drives must be either SATA or SAS hard drives.
NOTE: The SAS controller card must be installed in either PCIe SLOT1 or PCIe SLOT2. See Figure 6-2.
Connect the power cable to the hard drive.
Connect the data cable to the hard drive:
For connection to the integrated SATA controller (SATA hard drives only), connect the SATA data cable to the SATA_A (first drive) and SATA_B (second drive) connectors on the system board. See Figure 3-16. See Figure 6-2 for the location of the hard drive connectors on the system board.
For connection to a SAS controller expansion card (SAS or SATA hard drives), connect the data cable from the SAS controller card and the power cable as shown in Figure 3-17. See SAS Controller Expansion Card for instructions about installing the card and routing the cables.
Figure 3-16. Cabling a SATA Hard Drive to the Integrated SATA Controller
1
SATA_B data cable to system board
2
SATA_A data cable to system board
3
power cable to hard drive
4
SATA data cable to hard drive
Figure 3-17. Attaching a SAS or SATA Hard Drive to a SAS Controller Expansion Card
1
power cable to hard drive (female)
2
power cable to hard drive (male)
3
SAS or SATA hard drives (2)
4
data cable to hard drive
5
data cable to SAS controller card
6
SAS controller card
Ensure that all connectors are properly cabled and firmly seated.
If the drive you just installed is the primary drive, install your operating
system on the hard drive.
Expansion Cards
The system board can accommodate up to four expansion cards:
One 3.3-V, half-length 32-bit, 33-MHz PCI (slot 3)
One PCIe x1 (slot 4)
One PCIe x4 with x8 slot (slot 1)
One PCIe x8 (slot 2)
See Figure 6-2 for the location of the expansion card slots.
Removing an Expansion Card
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
On the inside of the chassis, press the release tab of the card retention
door, and then pull down on the retention door's latch on the outside of
the chassis to open the door. See Figure 3-18.
If necessary, disconnect any cables from the card.
Grasp the card by its top corners and ease it out of its connector.
If you are removing the card permanently, install a filler bracket in the
empty card slot.
NOTE: Filler brackets must be installed over empty expansion card slots to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
Figure 3-18. Removing and Installing an Expansion Card
1
expansion card
2
alignment guide
3
card retention door
4
release tab
Close the card retention door to secure the remaining card(s) in the
system. See Figure 3-18.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Remove the card's device driver from the operating system.
Installing an Expansion Card
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
On the inside of the chassis, press the release tab of the card retention
door, and then pull down on the retention door's latch on the outside of
the chassis to open the door. See Figure 3-18.
If you are installing a new card, remove the filler bracket.
NOTE: Keep this bracket in case you need to remove the expansion card. Filler brackets must be installed over empty expansion-card slots to maintain FCC certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
Prepare the card for installation.
See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your system.
NOTE: Some NICs automatically start the system when they are connected to a network.
Insert the card into the expansion card connector on the system board
(SLOT1, SLOT2, SLOT3, or SLOT4) and press down firmly. Ensure that
the card is fully seated in the slot and all cards and filler brackets are flush
with the alignment bar. See Figure 6-2 for the location of the four
expansion card connectors.
Close the card retention door to secure the card(s) in the system.
NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the system cover from closing properly or cause damage to the equipment.
Connect any cables that should be attached to the card.
See the documentation for the card for information about the card's cable connections.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Install any device drivers required for the card as described in the
documentation for the card.
SAS Controller Expansion Card
Read the installation instructions in the documentation for your SAS controller card. Install the card in expansion card connector SLOT1 or SLOT2 (see Installing an Expansion Card), and connect the hard-drive activity indicator cable from the card to the AUXLED connector on the system board (see Figure 6-2 for the connector location). Fasten the cables to the slots as indicated in Figure 3-19 to manage the slack.
Figure 3-19. Cabling a SAS or SATA Hard Drive to a SAS Controller Expansion Card
1
SAS card
2
clip on hard disk drive fan shroud
3
power cable
4
hard disk drive fan
5
power cable
6
top notch on heat sink fan shroud
7
front drive bezel
8
SAS cable
9
retaining tabs on top of heat sink shroud
10
retaining clip on top of heat sink fan shroud
See Hard Drives for information about connecting hard drives.
Memory
The four memory module connectors on the system board can accommodate from 512 MB to 8 GB of 667-MHz and 800-MHz unbuffered ECC DDR II single or dual-rank memory modules. See Figure 6-2 for the location of the four memory module connectors.
NOTE: When installing memory, take care to install it in the proper slots according to the configuration guidelines in Table 3-2. Installing memory in the wrong slots will significantly reduce system performance. See Figure 6-2 for slot locations.
Memory Module Upgrade Kits
The system is upgradable to 8 GB by installing combinations of 512-MB, 1-GB, and 2-GB 667-MHz or 800-MHz unbuffered ECC DDR II single or dual-rank memory modules. You can purchase memory upgrade kits from Dell.
Memory Module Installation Guidelines
If only one memory module is installed, it must be installed in connector DIMM_1A.
If only one memory module is installed in connector DIMM_1A, its capacity can be 512 MB, 1 GB, or 2 GB.
If more than one memory module is installed, the memory modules must be installed in pairs of matched memory size, speed, and technology.
Memory modules must be installed in ordered pairs in connectors DIMM_1A and DIMM_1B, and then DIMM_2A and DIMM_2B.
Installing three memory modules is not supported.
NOTICE: If you remove your original memory modules from the system during a memory upgrade, keep them separate from any new memory modules that you may have, even if you purchased the new memory modules from Dell. Use only unbuffered ECC DDR II memory modules.
Table 3-2 illustrates memory configuration guidelines. It is important to follow the slot installation configurations shown here to achieve maximum memory performance.
Table 3-2. Memory Configuration Guidelines
Total Memory
DIMM_1A
DIMM_1B
DIMM_2A
DIMM_2B
512 MB
512 MB
none
none
none
1 GB
1 GB
none
none
none
2 GB
2 GB
none
none
none
1 GB
512 MB
512 MB
none
none
2 GB
512 MB
512 MB
512 MB
512 MB
2 GB
1 GB
1 GB
none
none
3 GB
1 GB
1 GB
512 MB
512 MB
3 GB
512 MB
512 MB
1 GB
1 GB
4 GB
2 GB
2 GB
none
none
4 GB
1 GB
1 GB
1 GB
1 GB
5 GB
2 GB
2 GB
512 MB
512 MB
5 GB
512 MB
512 MB
2 GB
2 GB
6 GB
2 GB
2 GB
1 GB
1 GB
6 GB
1 GB
1 GB
2 GB
2 GB
8 GB
2 GB
2 GB
2 GB
2 GB
Addressing Memory With 8-GB Configurations (Microsoft® Windows® Operating System Only)
Your system supports a maximum of 8 GB of memory using four 2-GB memory modules. Current operating systems can use a maximum of 8 GB of address space; however, the amount of memory available to the operating system is slightly less than 8 GB.
NOTE: Depending on the type of PCI/PCIe expansion cards that are installed in your system, your system may only support a maximum of 7.4 GB of memory or less.
Integrated PCI devices (such as NICs) and SCSI controllers
PCI expansion cards
At start-up, the BIOS identifies the components that require address space. The BIOS dynamically calculates the amount of reserved address space required. The BIOS then subtracts the reserved address space from 8 GB to determine the amount of usable space.
If the total installed system memory is less than the usable space, all installed system memory is available for use only by the operating system.
If the total installed system memory is equal to or greater than the usable address space, a small portion of installed memory is available for use by the operating system.
Removing a Memory Module
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Press out on the securing clip at each end of the memory module
connector. See Figure 3-20.
Grasp the memory module and pull it out of the connector.
If the module is difficult to remove, gently move the module back and forth to remove it from the connector.
Installing a Memory Module
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Press on the securing clip at each end of the memory module connector.
See Figure 3-20.
Align the memory module's edge connector with the alignment key in the
connector.
The memory module connector has an alignment key that allows the memory module to be installed in the connector in only one way.
Applying even pressure to both ends of the module, insert the module into
the connector and carefully press the module into place.
Figure 3-20. Installing and Removing a Memory Module
1
memory module
2
alignment key
3
connector
4
memory module socket ejectors (2)
Pull up on the securing clips to lock the module into place.
If you insert the module correctly, the securing clips snap into the cutouts at each end of the module.
When the memory module is properly seated in the connector, the securing clips on the memory module socket should align with the securing clips on the other connectors with memory modules installed.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
The system detects that the new memory does not match the existing configuration information and generates the following message:
The amount of system memory has changed. Strike the F1 key to continue, F2 to run the setup utility
Press <F2> to enter the System Setup program and check the value for
Memory Information. See System Setup Options.
The system should have changed the value for Memory Information to reflect the newly installed memory. Verify the new value. If it is correct, skip to step 13.
If the memory value is incorrect, turn off the system and attached
peripherals, and disconnect the system from the electrical outlet.
Ensure that the installed memory modules are seated properly in their
connectors, and repeat step 7 through step 9.
When the Memory Information value is correct, press <Esc> to exit the
System Setup program.
Run the system diagnostics to verify that the memory modules are
operating properly. See Running the System Diagnostics.
Microprocessor
You can upgrade the system processor to take advantage of future options in speed and functionality. The processor and its associated internal cache memory are contained in a land grid array (LGA) package that is installed in a ZIF socket on the system board.
Removing the Processor
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
CAUTION: The processor and heat sink can get very hot during normal operation. Ensure that they have had sufficient time to cool before you touch them.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Detach the diskette cable that is braced on top of the shroud assembly and
move it aside.
Using a #2 Phillips screwdriver, loosen the two captive screws holding the
heat sink and shroud assembly in place.
These captive screws are adjacent to the processor cooling fan housing. See Figure 3-21.
Tilt the heat sink and shroud assembly away from the fan housing on its
pivot bracket and lift it out.
Figure 3-21. Installing and Removing the Heat Sink
1
heat sink and shroud assembly
2
pivot bracket
3
captive screws (2)
4
diskette cable
Release the socket-release lever before opening the processor shield. See
Figure 3-22.
Rotate the processor shield upward and out of the way.
Lift the processor out of the socket and leave the release lever up so that
the socket is ready for the new processor.
NOTICE: Be careful not to bend any of the pins on the ZIF socket when removing the processor. Bending the pins can permanently damage the system board.
Figure 3-22. Installing and Removing a Processor
1
notch in processor (2)
2
processor
3
socket-release lever
4
ZIF socket
5
processor shield
6
socket key (2)
Replacing the Processor
Unpack the new processor.
Align the processor with the socket keys on the ZIF socket. See
Figure 3-22.
Install the processor in the socket.
NOTICE: Positioning the processor incorrectly can permanently damage the system board or the processor when you turn it on. When placing the processor in the socket, be careful not to bend the pins in the socket. Avoid touching the socket pins or the pads on the processor when handling the processor or the system board.
If the release lever on the processor socket is not positioned all the way
up, move it to that position.
With the processor and the socket keys aligned, set the processor
lightly in the socket.
NOTICE: Do not use force to seat the processor. When the processor is positioned correctly, it engages easily into the socket.
When the processor is fully seated in the socket, rotate the socket
release lever back down until it snaps into place, securing the
processor. See Figure 3-22.
Clean the thermal grease from the bottom of the heat sink.
NOTICE: Ensure that you apply new thermal grease. Applying new thermal grease is critical to ensuring proper thermal bonding as well as optimal processor operation.
Apply new thermal grease to the top of the processor.
Place the heat sink assembly back onto the heat sink assembly bracket and
tilt the heat sink assembly down on the system board. See Figure 3-21.
Align the two captive screws properly with the system board, then tighten
them to secure the heat sink assembly to the system board.
Reconnect the system to the electrical outlet, and turn on the system and
attached peripherals.
Cooling Fans
The system contains two cooling fans, one for the processor and one for the card cage. Each contains a shroud that is part of the cooling fan assembly. The fan and shroud are replaced as a unit.
NOTE: If you are removing the larger processor cooling fan, you must first remove the heat sink and shroud assembly. See Removing the Processor (however, do not remove the processor) and Figure 3-24.
Removing the Cooling Fans
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Disconnect the fan's power cable from the system board.
If you are removing the smaller hard drive cooling fan (see
Figure 3-23):
Squeeze the two release tabs together at the top of the fan cage that
attaches the fan to the chassis bracket mount.
Lift the fan out.
NOTE: The SAS hard drive cooling fan is present only if a SAS 6i/R integrated controller card is installed.
If you are removing the larger processor cooling fan:
Remove the heat sink and shroud assembly. See Removing the
Processor. Do not remove the processor, however.
Press the side release tab that attaches the processor cooling fan to the
chassis (see Figure 3-24).
Press the bottom release tab and shift it forward to guide the bottom
mounting tabs out of their mounting holes (see Figure 3-24).
Slide the fan toward the back panel and lift the fan out.
Figure 3-23. Removing and Installing the SAS Controller Cooling Fan
1
top release tabs
2
cooling fan
3
bottom mounting tabs
4
bracket mount
Figure 3-24. Removing and Installing the Heat Sink Cooling Fan
1
bottom release tab
2
side release tab
3
bottom mounting tabs
4
bottom mounting holes
Replacing the Cooling Fans
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
If you are replacing the hard drive cooling fan:
Align the bottom mounting tabs on the replacement fan with the
mounting holes in the system chassis.
Squeeze the top two release tabs and guide the assembly forward so that it
locks into place.
If you are replacing the processor cooling fan:
Align the bottom mounting tabs on the replacement fan with the
mounting holes in the system chassis. Align the slots on the side of the
replacement fan with the securing tabs on the chassis bracket mount.
Slide the fan toward the front panel until it snaps into place.
Secure the cables into the slots on the heat sink fan shroud to manage
unwanted slack. See Figure 3-25.
Attach the fan cable to the system board. See Figure 6-2 for the location of
the connector.
You can operate your system without a battery; however, without a battery, the configuration information is erased if the system is turned off or unplugged from the electrical outlet. In this case, you must enter the System Setup program and reset the configuration options.
CAUTION: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions.
Removing the System Battery
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Enter the System Setup program and record the option settings on the
System Setup screens. See Using the System Setup Program.
Turn off the system, including any attached peripherals, and disconnect
the system from the electrical outlet.
After an hour, reconnect the system to a power source and turn it on.
Enter the System Setup program. If the time and date are still incorrect,
see Getting Help.
Properly dispose of the old battery. For more information, see your Product
Information Guide.
Power Supply
Removing the Power Supply
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Depending on your system configuration, disconnect the power cables
from the following components where applicable (see Figure 6-2 for
connector locations):
PWR_CONN connector on the system board
12V connector on the system board
Hard drives
Diskette drive
Tape backup unit
Optical drives
NOTE: Note the routing of the DC power cables underneath the tabs in the system frame as you release the tabs and remove the cables from the system board and drives. You must route these cables properly when you replace them to prevent their being pinched or crimped.
Remove the heat sink and shroud assembly. Loosen the two captive screws
holding the heat sink and shroud assembly in place.
These captive screws are adjacent to the processor cooling fan housing. See Figure 3-21.
Tilt the heat sink and shroud assembly away from the fan housing and lift
it out.
Remove the I/O panel and SATA cables (if present) attached to the routing
clips on the side of the power supply.
Using a #2 Phillips screwdriver, remove the four Phillips screws that secure
the power supply to the back panel.
Press the power-supply release tab down and slide the power supply toward
the front of the system, then lift it out of the system chassis. See
Figure 3-27.
Remove the cable clip and set it aside to attach to the new power supply.
Figure 3-27. Removing the Power Supply
1
power supply release tab
2
power supply
3
screws (4)
4
cable clip
Installing the Power Supply
Attach the cable clip to the new power supply.
Align the power supply mounting holes with the mounting holes on the
back panel.
Slide the power supply toward the back panel until it snaps into place over
the power-supply release tab.
Using a #2 Phillips screwdriver, install the four Phillips screws that secure
the power supply to the back panel.
Reattach the I/O panel and SATA cables (if present) to the routing clip on
the side of the power supply.
Depending on your system configuration, connect the following power
cables:
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Reconnect the system to the electrical outlet, and turn on the system.
Bezel (Service Only)
Removing the Bezel
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Reconnect the system to the electrical outlet, and turn on the system.
I/O Panel Assembly (Service Only)
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Removing the I/O Panel Assembly
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
NOTICE: Carefully note the routing of each cable before you disconnect it, so that you are sure to re-route cables correctly.
Disconnect the I/O panel ribbon cable from the I/O panel connector by
pulling the yellow cable loop.
Remove the mounting screw holding the I/O panel assembly to the front
chassis. See Figure 3-30.
Lift the I/O panel assembly out of the system.
Figure 3-30. Removing and Installing the I/O Panel Assembly
1
screw on the I/O panel
2
I/O panel assembly
3
alignment stop on chassis
4
I/O panel securing slot
5
holding tab on the chassis
Replacing the I/O Panel Assembly
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
Fit the I/O panel assembly so that the holding tab on the front of the
chassis catches at its bottom securing slot and the I/O panel assembly lines
up with the alignment stop. See Figure 3-30.
Secure the I/O panel assembly by replacing the screw. See Figure 3-30.
Secure the I/O panel ribbon cable through the clips beneath the
3.5 optional diskette drive and on the side of the power supply shroud, and
connect the I/O panel ribbon cable to the new I/O panel connector. See
Figure 3-31.
NOTE: To prevent damaging the processor, clean the heat sink to remove any thermal grease and then apply fresh thermal grease to the processor before installing the heat sink.
Reconnect the system to the electrical outlet, and turn on the system.
System Board (Service Only)
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before you begin this procedure, review the safety instructions that came with the system.
CAUTION: The heat sink can get hot during operation. To avoid burns, ensure that the system has sufficient time to cool before removing the system board.
Removing the System Board
Turn off the system and attached peripherals, and disconnect the system
from the electrical outlet.
Using a #2 Phillips screwdriver, remove the six system board mounting
screws that secure the system board to the chassis. See Figure 6-2.
Using a #2 Phillips screwdriver, remove the two processor heat sink pivot
mount screws and remove the pivot mount from the system board. See
Figure 6-2. The heat sink pivot mount screws are green and are longer than
the system board mounting screws.
Carefully route any loose cables away from the edges of the system board.
Gently slide the system board toward the front of the system, then lift the
system board up and out of the chassis.
Installing the System Board
After removing the old system board, lower the new system board into the
chassis, aligning the I/O ports on the system board with the I/O connector
openings on the back panel of the chassis.
Using a #2 Phillips screwdriver, install the six screws on the system board
that secure it to the chassis. See Figure 6-2.
Using a #2 Phillips screwdriver, attach the processor heat sink pivot mount
to the system board. See Figure 6-2.
NOTICE: To prevent damaging the processor, clean the heat sink to remove any thermal grease and then apply fresh thermal grease to the processor before installing the heat sink.
