The system includes the following hot-pluggable cooling fans:
Two fan assemblies containing two individual fans. One assembly is located near the SCSI backplane board. The other fan assembly is attached to the back of the chassis.
Align the fan assembly with the fan assembly guide on the back of the chassis, and
push down until the fan assembly is firmly seated and the latch is engaged (see
Figure 6-4).
Connect the fan assembly power cable to the back fan connector on the system board
(see Figure 6-4).
Install the cooling shroud (see "Installing the Cooling Shroud").
Replace the cover (see "Replacing the Cover" in "Troubleshooting Your System").
CAUTION: The power supplies are hot-pluggable. The system requires one power
supply to be installed for the system to operate normally. The system is in the
redundant mode when two power supplies are installed. Remove and replace only
one power supply at a time in a system that is powered on.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Grasp the power-supply handle and press down on the release lever while pulling the
power supply straight out to clear the chassis (see Figure 6-7).
Slide the power supply into the chassis until it snaps into place (see Figure 6-7).
NOTE: After installing a new power supply, allow several seconds for the system to
recognize the power supply and determine whether it is working properly. The power-on
indicator will turn green to signify that the power supply is functioning properly (see
Figure 2-4).
Close the bezel (see "Replacing the Bezel" in "Troubleshooting Your System").
You can install expansion cards of different operating speeds on the same bus; however, the bus will operate at the slowest operating speed of the cards on that bus. For example, if one card on the bus has an operating speed of 66 MHz and the other card has an operating speed of 100 MHz, the bus will only operate at 66 MHz.
To identify expansion slots, see Figure A-3. Table 6-1 lists the PCI bus and operating speed for each expansion-card slot.
The system's BIOS scans and numbers PCI buses and devices during startup. Expansion slots are scanned according to the host bus ordering, not by the slot numbers. See Table 6-2 for the order in which the expansion slots and embedded PCI devices are scanned.
An additional factor affects the assignment of PCI bus numbers: an expansion card may have its own PCI bridge chip which requires the assignment of a bus number for the card as well as one for the bridge. A particular expansion card may have two PCI bridge chips which would result in three sequential PCI bus numbers all assigned in the same expansion slot.
If you install expansion cards, you may have some difficulty in directly determining the bus number of a controller on a particular expansion card. However, the PCI bus scan order listed in Table 6-2 can help determine the relative numbering of PCI buses within the expansion slots. For example, a PCI controller residing in expansion slot 3 will never have a lower bus number than one in slot 2 because slot 2 precedes slot 3 in the scan order.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Unpack the expansion card, and prepare it for installation.
For instructions, see the documentation accompanying the card.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Position the expansion card so that the card-edge connector aligns with the
expansion-card connector on the system board.
Insert the card-edge connector firmly into the expansion-card connector until the
card is fully seated.
When the card is seated in the connector, close the expansion-card latch (see
Figure 6-8).
NOTE: SCSI cables connected from an expansion card to the SCSI backplane board
should be routed under the front fan assembly.
Figure 6-8. Installing an Expansion Card
Reconnect all expansion-card cables, including those for the new card.
See the documentation that came with the card for information about its cable connections.
NOTE: If the expansion card you are installing is of a different operating speed as the card
already installed on the same PCI bus, all expansion cards on that bus will operate at the
slower speed.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Grasp the expansion card by its top corners, and carefully remove it from the
expansion-card connector.
If you are removing the card permanently, install a metal filler bracket over the empty
expansion slot opening and close the expansion-card latch.
NOTICE: You must install a filler bracket over an empty expansion slot 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.
The six memory module connectors on the system board can accommodate from 256 MB to 6 GB of registered memory modules. The memory module connectors are arranged in pairs which consist of three banks (Bank 1 – Bank 3).
The system is upgradable to 6 GB by installing combinations of 128-, 256-, 512-MB, and 1-GB registered DDR SDRAM modules. You can purchase memory upgrade kits as needed.
NOTICE: The memory modules must be PC-2100 compliant.
Starting with the connector nearest the side of the chassis, the memory module connectors are labeled "DIMM1A" through "DIMM3B" (see Figure A-3). When you install memory modules, follow these guidelines:
You must install memory modules in matched pairs.
Install a pair of memory modules in connector DIMM1A and DIMM1B before installing a second pair in connectors DIMM2A and DIMM2B, and so on.
Figure 6-9. Memory Module Sockets
Table 6-3 lists several sample memory configurations based on these guidelines.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Replace the cover (see "Replacing the Cover" in "Troubleshooting Your System").
Reconnect the system to its electrical outlet and turn the system on, including any
attached peripherals.
After the system completes the POST routine, it runs a memory test.
The system detects that the new memory does not match the system configuration information, which is stored in NVRAM. The monitor displays an error message that ends with the following words:
Press <F1> to continue; <F2> to enter System Setup
Press <F2> to enter the System Setup program, and check the System Memory
setting.
The system should have already changed the value in the System Memory setting to reflect the newly installed memory.
If the System Memory value is incorrect, one or more of the memory modules may not
be installed properly. Repeat steps 1 through 8, ensuring that the memory modules are
firmly seated in their connectors.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Locate the memory module connectors in which you will install a memory module
(see Figure A-3).
Press down and outward on the memory module connector ejectors, as shown in
Figure 6-10, to allow the memory module to be inserted into the connector.
Figure 6-10. Removing and Installing a Memory Module
Align the memory module's edge connector with the alignment key, and insert the
memory module in the connector (see Figure 6-10).
The memory module connector has an alignment key that allows the memory module to be installed in the connector in only one way.
Press down on the memory module with your thumbs while pulling up on the ejectors
with your index fingers to lock the memory module into the connector (see
Figure 6-10).
When the memory module is properly seated in the connector, the memory module connector ejectors should align with the ejectors on the other connectors with memory modules installed.
Repeat steps 5 through 7 of this procedure to install the remaining memory modules.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
To take advantage of future options in speed and functionality, you can add a second microprocessor or replace either the primary or secondary microprocessor.
NOTE: The second microprocessor must be of the same type as the first. If the two
microprocessors are different speeds, both will operate at the speed of the slower
microprocessor.
Each microprocessor and its associated cache memory are contained in a PGA package that is installed in a ZIF socket on the system board. A second ZIF socket accommodates a secondary microprocessor.
NOTE: In a single microprocessor system, the microprocessor must be installed in the
PROC 1 socket.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Remove the back fan assembly (see "Removing the Back Fan Assembly"). If you are
installing a second microprocessor, go to step 9.
Remove the microprocessor heat sink:
Press down on the heat-sink securing clips to release the clips from the retaining
tabs on the ZIF socket (see Figure 6-11).
Remove the heat-sink securing clips.
CAUTION: The microprocessor and heat sink can become extremely hot. Be sure
the microprocessor has had sufficient time to cool before handling.
NOTICE: Never remove the heat sink from a microprocessor unless you intend to remove the
microprocessor. The heat sink is required to maintain proper thermal conditions.
Lift the heat sink out of the chassis and place it on its side.
Figure 6-11. Removing and Replacing a Heat Sink
Pull the socket release lever straight up until the microprocessor is released (see
Figure 6-12).
Lift the microprocessor out of the socket and leave the release lever up so that the
socket is ready for the new microprocessor.
NOTICE: Be careful not to bend any of the pins when removing the microprocessor. Bending
the pins can permanently damage the microprocessor.
Figure 6-12. Removing and Replacing a Microprocessor
Unpack the new microprocessor.
If any of the pins on the microprocessor appear bent, see "Getting Help" for instructions on obtaining technical assistance.
Ensure that the release lever on the microprocessor socket is in the upright position.
Align pin 1 on the microprocessor (see Figure 6-12) with pin 1 on the microprocessor
socket.
NOTE: No force is needed to install the microprocessor in the socket. When the
microprocessor is aligned correctly, it should drop into the socket.
Install the microprocessor in the socket (see Figure 6-12).
NOTICE: Positioning the microprocessor incorrectly can permanently damage the
microprocessor and the system when you turn on the system. When placing the microprocessor
in the socket, be sure that all of the pins on the microprocessor go into the corresponding holes.
Be careful not to bend the pins.
When the microprocessor is fully seated in the socket, rotate the socket release lever
back down until it snaps into place, securing the microprocessor.
Place the new heat sink on top of the microprocessor (see Figure 6-11).
Orient the securing clips as shown in Figure 6-11.
Hook the end of the clips without the latch to the tab on the edge of the socket.
Push down and pivot the securing clip latch until the hole on the clip latches onto the
ZIF socket tab.
If you are adding a second microprocessor, you must install a VRM in the VRM 2
connector, pushing down firmly to make sure that the latches engage (see
Figure 6-13).
Replace the cover (see "Replacing the Cover" in "Troubleshooting Your System").
Reconnect the system to its electrical outlet and turn the system on, including any
attached peripherals.
Enter the System Setup program, and ensure that the microprocessor options match
the new system configuration (see "Using the System Setup Program" in your User's
Guide).
As the system boots, it detects the presence of the new microprocessor and automatically changes the system configuration information in the System Setup program. If you installed a second microprocessor, a message similar to the following appears:
Confirm that the top line of the system data area in the System Setup program
correctly identifies the installed microprocessor(s) (see "Using the System Setup
Program" in your User's Guide).
Exit the System Setup program.
Run the system diagnostics to verify that the new microprocessor is operating
correctly.
See "Running System Diagnostics" for information on running the diagnostics and troubleshooting any problems that may occur.
CAUTION: Before you perform this procedure, you must turn off the system and
disconnect it from its power source. For more information, see "Safety First—For
You and Your System" in "Troubleshooting Your System."
CAUTION: There is a danger of a new battery exploding 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. See the System Information document for
additional information.
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety
instructions in your System Information document.
Open the bezel (see "Removing the Bezel" in "Troubleshooting Your System").
Turn off the system, including any attached peripherals, and disconnect the system
from the electrical outlet.
Remove the cover (see "Removing the Cover" in "Troubleshooting Your System").
Remove any expansion cards that are installed above the system battery (see
"Removing an Expansion Card").
