|
Removing and Replaceing Parts
Removing and Replaceing Parts
Tools and Supplies
Equipment Log
Side Cover
Module Retaining Bracket
CPU Module
ECC Memory Modules
Add-in Boards
Front Panel and Door Assembly
Diskette Drive
Other Mass Storage Devices
Real-Time Clock
System Board
Front Panel Board
Fans
Power Supply
Hot-Docking Bay Assembly
Before You Begin
Tools and Supplies
 Magnetic Phillips screwdriver with a #2 bit
Standard tip screwdriver with .375- to .500-inch by .04-inch thick blade
IC removal tool
Antistatic wrist strap (recommended)
Pen or pencil
Equipment Log
Instruct the user to use the equipment log form provided in Appendix A, "Equipment Log," of the Server System Product Guide to record the model and serial number of the server, all installed options, and any other pertinent information specific to the server. The user will need this information when running the EISA/ISA system configuration utility (SCU).
Side Cover
To install add-in boards and peripheral devices in the server, the side cover must be removed.
CAUTION: For proper cooling and airflow, do not operate the server with the cover removed. Always replace it before turning on the server.
Removing the Side Cover
Side Cover
1. Turn off all peripheral devices connected to the system.
2. Turn the server off with DC push-button on/off switch on the front panel of the server, and unplug the AC power cord.
3. Label and disconnect all peripheral cables attached to the I/O panel on the back of the server.
4. If a padlock is installed on the back of the server, remove it. (Dell does not supply padlocks.)
5. Remove the four screws from the side cover, and set them aside they will be needed to reattach the cover.
6. Place the fingertips of the left hand under the built-in handle on the back of the cover.
7. Place the fingertips of the right hand under the cover just behind the front system foot.
8. Using an even pull at both points, slide the cover backwards, about an inch, until it stops.
9. Using the right hand, pull the bottom of the cover towards you to disengage its bottom row of tabs from the notches in the chassis.
10. Using both hands, lift the cover up to disengage its top row of tabs from the notches in the top of the chassis, and set it aside.
Replacing the Side Cover
1. Before replacing the side cover, make sure there are no tools or loose parts inside the chassis.
2. Ensure that add-in boards are firmly seated in their respective slots, retaining brackets are firmly secured with screws tightened to 6.0�inch-pounds, and interior cables are properly connected.
3. Position the side cover over the chassis so that the top and bottom rows of tabs align with slots in the chassis. Slide the cover toward the front of the server so that the tabs firmly engage in the notches in the chassis frame.
CAUTION: When replacing the side cover, be careful not to damage the EMI gaskets mounted on the cover. Replace any damaged gaskets.
4. Attach the side cover to the chassis with the four screws removed earlier, and tighten them firmly (6.0 inch-pounds).
5. For security and to prevent unauthorized entry into the server, insert a padlock* through the metal tab protruding through the slot in the back of the side cover and lock it.
6. Connect all external cables and the power cord to the system.
Module Retaining Bracket
Module Retaining Bracket
The module retaining brackets hold the CPU and ECC memory modules in their connectors on the system board.
Installing a Module Retaining Bracket
1. Remove the side cover.
2. Install a metal clip in the appropriate slots (Module Retaining Bracket
, A, B) in the support panel on the back of the chassis.
3. Install a metal clip in the appropriate slot (Module Retaining Bracket
, C) in the support panel near fan�1.
4. Insert one end of the module retaining bracket (Module Retaining Bracket, D) into the metal clip in the support panel near fan 1.
5. While supporting the bracket, gently move the module back and forth until it aligns with the slot in the plastic side of the bracket.
6. Slide the other end of the bracket (Module Retaining Bracket
, E) into the metal clip in the support panel on the back of the chassis.
7. Attach each end of the bracket to the metal clips with the screws provided, and tighten them to 6.0 inch-pounds.
8. Replace the side cover.
Removing the Module Retaining Bracket
1. Remove the screws from the bracket, and set them aside.
2. Slide the bracket forward through the metal clip in the slot on the support panel (Module Retaining Bracket, D) near the fans until it clears the metal clip in the back of the chassis (Module Retaining Bracket
, E).
3. Gently pull the bracket towards you until it clears the back of the module.
4. Slide the bracket towards the back of the chassis until it clears the support panel. Remove the bracket from the system, and set it aside.
5. Replace the side cover.
CPU Module
The server system board accepts two single or dual CPU modules.
CAUTION: CPU modules can be extremely sensitive to ESD and always require careful handling. After removing the module from its protective wrapper or from the system, place it component-side up on a grounded, static-free surface or conductive foam pad--if available. Do not slide the module over any surface.
Installing a CPU Module
1. Remove the side cover.
2. Being careful not to touch the components or gold-edged connectors on the CPU module, remove the module from its protective wrapper and place the module component-side up on an antistatic surface.
3. Have the user record the module's serial number in the equipment log.
If only one module is being installed, install it in CPU 1 connectors J7J1 and J7D1 (Installing the CPU Module
, B) on the system board
(Installing the CPU Module, A).
If two modules are being installed, install the second one in CPU 2 connectors J6J1 and J6D1 (Installing the CPU Module, C) on the system board (Installing the CPU Module, A).
4. Hold the module by its top edge or upper corners, and firmly press it into the connectors on the system board.
5. For each CPU module in the system, install a module retaining bracket.
6. Replace the side cover.
7. Run the SCU to configure the system.
Removing a CPU Module
1. Remove the side cover and module retaining bracket.
2. Holding the module by its top edge or upper corners, carefully rock it back and forth until the edge connectors pull free.
3. Store the module in an antistatic protective wrapper.
4. Replace the side cover.
ECC Memory Modules
The server system board accepts two ECC memory modules. The first one goes in the MEM 1 connector and the second in the MEM 2 (expansion) connector.
Anytime an ECC memory module is replaced or memory is added, the SCU must be run to reconfigure the system properly. Failure to comply will result in degraded system performance, and total memory installed in the system may not be recognized.
Installing an ECC Memory Module
1. Remove the side cover.
2. Remove the module from its protective wrapper and place the module component-side up on an antistatic surface. Be careful not to touch the components or gold-edged connectors on the module.
3. Have the user record the module's serial number in the equipment log.
If only one module is being installed, install it in MEM 1 connector J9J1 (Installing the ECC Memory Module, B) on the system board (Installing the ECC Memory Module, A).
If two modules are being installed, install the second one in MEM 2 connector J8J1 (Installing the ECC Memory Module, C) on the system board (Installing the ECC Memory Module, A).
4. Hold the module by its top edge or upper corners, and firmly press it into the connector on the system board.
5. For each ECC memory module in the system, install a module retaining bracket.
6. Replace the side cover.
7. Run the SCU to configure the system and recognize the new memory size.
Removing an ECC Memory Module
1. Remove the module retaining bracket.
2. Holding the module by its top edge or upper corners, carefully rock it back and forth until the edge connectors pull free.
3. Store the module in an antistatic protective wrapper.
4. Replace the side cover.
5. Run the SCU to configure the system and recognize the new memory size.
Add-in Boards
The system board provides four PCI slots and six EISA bus master slots. They accept any EISA add-in board or any add-in board that is compatible with an IBM PC AT or PC XT system (except for an 8-bit drop card that fits only in an 8-bit PC XT connector). Two EISA slots share a common chassis I/O expansion slot with two PCI slots.
NOTES:
Do not overload the system board by installing add-in boards that draw excessive current. For expansion slot current limitations, see Power Supply.
When installing or removing a ISA or EISA board, run the SCU to reconfigure the system. Note that for a PCI add-in board, running the SCU is optional.
Some PCI NIC cards and most PCI video expansion cards will not function properly when installed in lower PCI expansion slots (P2-1 and P2-2). If the customer experiences problems with a NIC card or video card installed in one of these expansion slots, move the card to one of the upper PCI expansion slots (P1-2 or P1-3).
Installing an Add-in Board
1. Remove the side cover.
2. Remove and save the Expansion slot screw and cover
3. Being careful not to touch the components or gold-edged connectors on the board, remove it from its protective wrapper and place it component-side up on an antistatic surface.
4. Have the user record the board's serial number in the equipment log.
5. Set any jumpers or switches according to the board manufacturer's instructions.
7. Hold the board by its top edge or upper corners, and firmly press it into an expansion slot on the system board. The tapered foot of the board retaining bracket must fit into the mating slot in the expansion slot frame.
Installing an EISA/ISA Add-in Board, Component-Side Up
Installing a PCI Add-in Board, Component-Side Down
8. Align the rounded notch in the retaining bracket with the threaded hole in the expansion slot frame. The retaining bracket fits into the space that was occupied by the expansion slot cover.
9. Insert the screw that was removed earlier in the threaded hole, and push the rounded notch up against the screw. Tighten it firmly (6.0 inch-pounds) to prevent the bracket from interfering with an adjacent one.
10. Replace the side cover.
11. If an ISA or EISA board was installed, run the SCU to configure the system.
Removing an Add-in Board
NOTE: Expansion slot covers must be installed on all vacant slots to maintain the electromagnetic emissions characteristics of the system and to ensure proper cooling of the system components.
1. Remove the side cover.
2. Disconnect any cables attached to the board being removed.
3. Remove and save the add-in board retaining bracket screw.
4. Holding the board by its top edge or upper corners, carefully rock it back and forth until the edge connectors pull free. Make sure that you do not scrape the board against other components.
5. Store the board in an antistatic protective wrapper.
6. Install an expansion slot cover over the vacant slot. The tapered foot of the cover must fit into the mating slot in the bottom of the expansion slot frame.
7. Insert the screw that was removed earlier in the threaded hole, and push the rounded notch up against the screw. Tighten it firmly (6.0 inch-pounds) to prevent the bracket from interfering with an adjacent one.
8. Replace the side cover.
9. If an ISA or EISA add-in board was removed, run the SCU to configure the system.
Front Panel and Door Assembly
The assembly consists of a base panel with four removable filler panels and a door. A combination of metal clips and tabs on the assembly secure it to the front of the chassisthere are no screws. If peripheral devices are being installed in the external bays, remove the filler panels.
Removing the Front Panel and Door Assembly
1. Turn off all peripheral devices connected to the system.
2. Remove the side cover.
3. Grasp the two metal clips on the front panel and door assembly, and gently lift them up until they detach from the chassis. At the same time, pull this side of the assembly away from the chassis to about an angle of�15.
4. Slide the assembly to the right to disengage the metal tabs from the chassis, and set the assembly aside.
Replacing the Front Panel and Door Assembly
1. Position the front panel and door assembly in front of the server so that the metal tabs on the door-side of the assembly align with the slots in the chassis wall.
2. Slide the assembly to the left to engage the metal tabs in the slots.
3. Push the assembly towards the chassis until the two metal clips on the assembly snap in place on the chassis.
4. Close the lower plastic front door of the server.
5. Replace the side cover.
Diskette Drive
The server comes with a 3.5-inch diskette drive installed in the external 3.5-inch peripheral bay.
Removing the Diskette Drive
1. Remove the side cover.
2. Disconnect the power cable and signal cable from the diskette drive. The connectors are keyed for easier alignment when reconnecting them to the drive.
3. Remove the screw that secures the drive and carrier assembly to the chassis, and set it aside.
4. Slide the assembly towards the power supply to disengage the tabs from the slots in the chassis wall. (Removing the Diskette Drive, 1 and 2)
5. Remove the assembly from the chassis, and place it component-side up on an antistatic surface.
6. Remove the four screws, and set them and the drive carrier aside.
Diskette Drive and Carrier Assembly
7. Place the drive in an antistatic protective wrapper.
8. Replace the side cover.
Installing a Diskette Drive
1. Remove the 3.5-inch diskette drive from its protective wrapper, and place it component-side up on an antistatic surface.
2. Have the user record the drive's model and serial number in the equipment log.
3. Set any jumpers or switches according to the drive manufacturer's instructions.
4. Place the drive carrier on the component-side of the drive, and align the four mounting holes. See Diskette Drive and Carrier Assembly.
5. Attach the carrier to the drive with four screws of the appropriate size and length (not supplied), and tighten them firmly (between 4.0 and 6.0 inch-pounds).
6. Position the drive and carrier assembly over the slots in the chassis wall, and slide the assembly towards the front of the system to engage its tabs in the slots. See Removing the Diskette Drive.
7. Secure the drive and carrier assembly to the chassis wall with the screw that was removed earlier, and tighten it firmly (6.0 inch-pounds).
8. Connect the signal cable and the power cable to the diskette drive. The connectors are keyed for easier alignment when reconnecting them to the drive.
9. Replace the side cover.
10. Run the SCU Utility.
Other Mass Storage Devices
The four external 5.25-inch half-height bays provide space for tape backup, CD-ROM, or other removable media devices. To install devices in these external bays, the stainless steel EMI shields and filler panels that cover the bays must be removed.
NOTE: Dell recommends against mounting a hard-disk drive in a 5.25-inch external bay because the drive generates EMI, and its susceptibility to ESD increases.
Installing a Mass Storage Device
1. Remove the side cover, front panel and door assembly.
2. Place the front panel and door assembly, door-side facing down, on a soft surface to prevent marring the door.
3. Remove the screws and Filler panel and set them aside.
4. Push the tab on the left side of the Removing the EMI Shields
to the right to disengage it from the chassis. Save the shield.
5. Remove the device from its protective wrapper and place it on an antistatic surface.
6. Have the user record the device's model and serial number in their equipment log.
7. Set any jumpers and/or switches according to the device manufacturer's instructions.
8. Using two screws of the appropriate size and length (not supplied) and an EMI/ESD grounding clip, attach plastic rail B (Snap-in Slide Rails A and B, B) to the left side of the device. Install the grounding clip under the screw head near the front of the device.
9. Attach rail A (Snap-in Slide Rails A and B
, D) to the right side of the device in the same manner.
10. Position the device so that the plastic slide rails on each side of it engage in the bay guide rails (Installing a Mass Storage Device, 1). Push the device into the bay until the slide rails lock in place.
11. Reach into the area between the power supply and external bays, and connect the signal cable (Installing a Mass Storage Device, 2) and the power cable (Installing a Mass Storage Device, 3) to the drive. The connectors are keyed and can be inserted in only one way.
12. Replace the side cover, front panel and door assembly.
13. Run the SCU to specify that the device is installed in the system.
Removing a Mass Storage Device
1. Remove the side cover, front panel and door assembly.
2. Reach into the area between the power supply and the external bays, and disconnect the power cable (Installing a Mass Storage Device, 3) and the signal cable (Installing a Mass Storage Device, 2) from the drive.
3. While squeezing the protruding plastic, snap-in rails attached to the drive towards each other, carefully slide the drive forward out of the bay, and place it on an antistatic surface.
4. Remove and save the four screws, two EMI/ESD grounding clips, and two snap-in slide rails from the device (Snap-in Slide Rails A and B).
5. If the bay is left empty, install a filler panel on the front panel and door assembly and a stainless steel EMI shield on the bay for proper cooling and airflow.
6. Replace the side cover, front panel and door assembly.
Real-Time Clock
Removing the Real-Time Clock
The real-time clock (RTC) plugs into socket U7D1 on the system board. This clock contains 64 bytes of general purpose RAM that stores the system BIOS configuration information, clock registers, and general purpose control registers. The internal integral lithium battery powers the clock for up to ten years in the absence of power. When the battery reaches the end of its life the RTC must be replaced.
NOTE: The system setup parameters and the setup parameters for the integrated Adaptec SCSI controllers are stored in NVRAM located in the RTC. If the contents of NVRAM are lost due to battery failure or the RTC being replaced, use the SCU to restore all system setup parameters and the Adaptec SCSISelect utility to restore all SCSI setup parameters.
CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the equipment manufacturer. Discard used batteries according to manufacturer's instructions.
Removing the Real-time Clock
Removing the Real-Time Clock
1. Remove the side cover.
2. Remove the RTC from its socket with an IC-removal tool.
3. Place the RTC in an antistatic bag to protect it from static electricity.
4. Dispose of the lithium battery powered RTC according to local ordinance.
Installing the Real-time Clock
1. Remove the side cover.
2. Remove the RTC from its antistatic package, being careful not to touch the pins on the device.
3. Position the RTC above socket U7D1 so that the dot on top of the RTC is towards the rear of the system board (see Removing the Real-Time Clock). Carefully insert the pins on the RTC into the socket connectors.
4. Being careful not to bend the pins, press down on the RTC until it is firmly seated in the socket.
5. Replace the side cover.
6. Run the SCU to restore the configuration settings to the RTC.
System Board
Removing the System Board
Removing the System Board
1. Remove the side cover.
2. Label and disconnect all peripheral cables attached to the I/O panel on the back of the server.
3. Label and disconnect all internal cables connected to the add-in boards installed in the expansion slots.
4. Remove the CPU modules, ECC memory modules, and add-in boards.
5. Label and disconnect all internal cables connected to the system board.
6. Remove the board retaining screws and set them aside.
7. Slide the board toward the front of the server until its I/O connectors clear the rear of the chassis.
8. Remove the board, and place it on an antistatic foam pad or a grounded workstation.
Installing the System Board
1. Position the system board (See Removing the System Board) over the threaded standoffs inside the chassis, and slide it toward the rear of the system until the I/O connectors protrude through the back panel.
2. While holding the board in place with one hand, insert a screw through one of the mounting holes of the board and into a threaded standoff. Do not tighten the screw until the remaining screws have been installed in the rest of the standoffs.
3. Insert the remaining screws through the mounting holes and into the threaded standoffs. Make sure the board is properly seated, and tighten all the screws firmly (6.0�inch-pounds).
4. Connect all internal cables to the system board.
5. Install the CPU modules, ECC memory modules, and add-in boards.
6. Connect all internal cables that go to the add-in boards installed in the expansion slots.
7. Replace the side cover.
8. Connect all peripheral device cables that go to the I/O panel on the rear of the system.
9. Run the SCU to configure the system.
Front Panel Board
The front panel board contains the system controls and indicators. It is mounted on a snap-on standoff and a threaded standoff inside the chassis.
Removing the Front Panel Board
Removing the Front Panel Board
1. Remove the side cover.
2. Remove the screw from threaded standoff and set it asideit will be needed.
3. Grasp the front panel board, and gently pull it towards the system fans until it clears the snap-on standoff.
4. Disconnect all the cables connected to the front panel board.
5. Carefully slide the front panel board down toward the hot-docking bays until it clears the cutout in the chassis.
6. Remove the board from the server, and place it on an antistatic foam pad or a grounded workstation.
Replacing the Front Panel Board
1. Carefully place the front panel board in the open area above the hot-docking bays, and slide it through the cutout in the chassis.
2. Reconnect the cables to the front panel board.
3. Position the front panel over the snap-on standoff and the threaded standoff inside the chassis.
4. Gently press the front panel board onto the snap-on standoff until it snaps in place.
5. Replace and tighten firmly (6.0�inch-pounds) the screw that secures the front panel board to the chassis.
6. Replace the side cover.
Fans
The server contains three fans for cooling and airflow:
Fan 1, for CPU and memory modules
Fan 2, for add-in boards and hard-disk drives in the hot-docking bays
Fan 3, for the standard peripheral bays and power supplythis is the integrated power supply fan
Removing Fan 1
Fan 1 Assembly
1. Remove the side cover.
2. Disconnect the fan power cable connector from the fan 1 header J4J3 on the system board.
3. Remove the screws that secure the fan assembly to the chassis, and set them aside.
4. Gently pull the fan assembly towards you until the tabs on the metal panel clear the slots in the chassis.
5. Slide the fan assembly into the cavity above the hot-docking bays, remove it from the system, and place it on a flat surface with the label-side of the fan facing down.
6. Remove the four screws that attach the metal panel to the fan, and set them aside.
Replacing Fan 1
Fan 1 Assembly
1. Place the fan, with the label-side facing down, on a flat surface.
2. Place the metal panel, with the concave surface of the dimples facing up and tabs facing the fan power cable, on top of the fan.
3. Insert the screws through the holes in the metal panel and into the fan mounting holes, and tighten them firmly (6.0�inch-pounds).
4. Slide the fan assembly, with the fan facing up and its cable facing towards the inside of the chassis, into the cavity above the hot-docking bays.
5. Insert the fan and its power cable side of the assembly through the opening in the inner chassis wall.
6. Slide the tabs on the metal panel into the slots in the side of the chassis.
7. While holding the fan assembly in place, replace and tighten the screws firmly (6.0 inch-pounds).
8. Connect the fan power cable connector to the fan 1 header J4J3 on the system board.
9. Replace the side cover.
Removing Fan 2
Fan 2 Assembly, Part 1
Fan 2 Assembly, Part 2
1. Remove the side cover.
2. Remove any add-in boards engaged in the card guide rails attached to the fan panel assembly. See Removing an Add-in Board.
3. Disconnect the fan power cable connector from the fan 2 header J1J1 on the system board.
4. Remove the assembly retaining screw and set it aside.
5. Slide the assembly towards you to disengage the tabs from the notches in the inner chassis wall, remove it from the system, and place it, with the card guide rails facing up, on a flat surface.
6. Remove the four screws that attach the metal panel to the fan, and set them aside.
Replacing Fan 2
Fan 2 Assembly, Part 1
Fan 2 Assembly, Part 2
1. Place the metal panel assembly on its side.
2. Place the fan inside the assembly with the label-side facing the screw holes in the assembly. Orient the fan so that the power cable faces the feed-through hole in the assembly.
3. While supporting the fan, insert the screws through the holes in the metal panel and into the fan mounting holes. Tighten the screws firmly (6.0 inch-pounds).
4. Insert the fan power cable through the feed-through hole in the assembly.
5. Position the assembly in the chassis so that the top and bottom rows of tabs on the metal panel engage with notches in the inner chassis wall. Slide the assembly toward the system board until the tabs firmly engage in the notches.
6. Replace and tighten the assembly retaining screw firmly (6.0 inch-pounds).
7. Connect the fan power cable connector to the fan 2 header J1J1 on the system board.
8. Replace any add-in boards that were removed.
9. Replace the side cover.
Power Supply
The system power supply is located on a shelf in the back of the system unit, immediately above the system board. Three screws secure the back of the power supply to the system unit; one screw secures the bracket on the side of the power supply to the right side of the system unit.
Removing the Power Supply
1. Remove the side cover.
2. Remove the three screws from the back of the power supply and the single screw that secures the power supply bracket to the right side of the system unit (Power Supply, A).
3. Cut the cable ties that secure the power supply's DC output cables to the shelf in the system unit (Power Supply, B).
4. Disconnect the power cables from the system board and pull the connectors through the slotted opening in the system unit shelf (Power Supply, C).
5. Disconnect the power cables from the diskette drive and any devices installed in the upper drive bays (Power Supply, D).
6. Disconnect the ribbon cable connector (PS 1) from the front of the power supply (Power Supply, E).
7. Place your hand on the back of the power supply and push it forward about one inch to release the tabs on the bottom and side of the power supply from the retaining slots on the shelf and side of the system unit.
8. Slide the power supply out of the system unit.
Replacing the Power Supply
1. Place the replacement power supply on the shelf in the system unit.
Position the power supply about one inch forward of its installed position. Align the tabs on the power supply with the retaining slots in the shelf and on the side of the system unit.
2. Slide the power supply toward the back of the system unit until the tabs lock into the retaining slots.
Install the three screws in the back of the power supply and the single screw in the power supply bracket. Tighten all four screws firmly.
3. Locate the five DC power cable connectors (PS1, PS2, PS3, PS4, and PS5) and the power supply enable cable connector (PS 11) that connect to the system board.
Route these cables through the slotted opening in the shelf and connect them to the appropriate connectors on the system board. See System Boardfor the location of the appropriate connectors on the system board.
4. Secure the system board power cables and enable cable to the shelf with two cable ties as shown in Power Supply, B.
5. Insert the ribbon cable connector (PS 1) into the connector on the front of the power supply.
6. Connect the appropriate power cables to the diskette drive and to any devices installed in the upper drive bays.
7. Replace the side cover.
Hot-Docking Bay Assembly
The assembly consists of a SCSI hot-docking backplane, two drive status light boards, and a metal hot-docking cage. The assembly is attached to the chassis with seven screws.
Removing the Hot-Docking Bay Assembly
1. Remove the side cover.
2. If a CPU module is installed in CPU 2 connectors J6J1 and J6D1 on the system board, remove its retaining bracket. See Module Retaining Bracket.
3. Open the lower plastic front door of the server.
4. If a padlock is installed on the metal door to the hot-docking bays, remove it.
5. Loosen the two captive spring-loaded thumbscrews (Removing the Inner Metal Door, 2) securing the metal door to the chassis.
6. Open the door until it is at an angle of about 45 degrees (Removing the Inner Metal Door, 3) relative to the system. Lift up on the door (Removing the Inner Metal Door, 4), and pull it towards you to disengage it from the chassis; set the door aside.
7. Reach through the opening above the hot-docking bays, and disconnect the drive fault cable (Removing Hot-Docking Bay Cables, A) from J5 on the front panel board.
8. Disconnect the cables from J7 and J16 (Removing Hot-Docking Bay Cables, B and C) on the SCSI hot-docking backplane, and place them away from the bay area.
9. If installed, disconnect the PCI RAID controller board data port cable from J17 (Removing Hot-Docking Bay Cables, D) on the hot-docking backplane, and place it away from the bay area.
10. Remove the seven screws (Hot-Docking Bay Assembly, 1) that secure the hot-docking bay assembly to the chassis.
11. Slide the assembly towards the fans, and gently pull it towards you (Hot-Docking Bay Assembly, 2) to disengage it from the slots in the chassis wall.
CAUTION: Be very careful when removing the hot-docking bay assembly. The LEDs mounted on the light boards above the upper and lower bays are easily damaged.
12. Gently pull the assembly partially out of the chassis, and disconnect the 50-conductor narrow SCSI cable from J6 (Removing Hot-Docking Bay Cables, F) on the hot-docking backplane. Remove the plastic tie-wrap that attaches the cable to the assembly.
13. Gently pull the assembly out of the chassis, and disconnect the power cable from J18 (Removing Hot-Docking Bay Cables, E) on the SCSI hot-docking backplane.
14. Place the hot-docking bay assembly on a grounded, static-free surface or conductive foam padif available.
Removing the Hot-Docking Backplane
1. Reach through the side openings in the hot-docking bays, and disconnect the LED status cables from J2 and J9 (Hot-Docking Backplane, A and B) on the backplane.
2. Remove the nine screws (C) that attach the backplane to the hot-docking bay assembly and, set them aside.
3. Place the backplane on an antistatic surface.
Replacing the Hot-Docking Backplane
1. Reach through the side openings in the hot-docking bays, and connect the LED status cables to J2 and J9 (Hot-Docking Backplane, A and B) on the backplane.
2. Attach the backplane to the hot-docking bay assembly with the nine screws (C) that were removed earlier.
Replacing the Hot-Docking Bay Assembly
1. Place the hot-docking bay assembly near the opening between the system fans and the front of the chassis, and connect the power cable to J18 (Removing Hot-Docking Bay Cables, E) on the SCSI hot-docking backplane.
CAUTION: Be very careful when removing the hot-docking bay assembly. The LEDs mounted on the light boards above the upper and lower bays are easily damaged.
2. Slide the assembly partially into the opening between the system fans and the front of the chassis, and connect the 50-conductor narrow SCSI cable to J6 (Removing Hot-Docking Bay Cables, F) on the hot-docking backplane. Attach the cable to the assembly with a plastic tie-wrap.
3. Slide the assembly into the chassis until the tabs on the back of the assembly engage in the chassis wall.
4. Being careful not to damage the LEDs, slide the assembly towards the front of the system chassis.
5. Attach the assembly to the chassis with the screws that were removed earlier.
6. Reach through the opening above the hot-docking bays, and connect the drive fault cable (Removing Hot-Docking Bay Cables, A) to J5 on the front panel board.
7. Connect the wide SCSI cables to J7 and J16 (Removing Hot-Docking Bay Cables, B and C) on the SCSI hot-docking backplane, and place them away from the bay area.
8. If there is a PCI RAID controller board in the server, connect its data port cable to J17 (Removing Hot-Docking Bay Cables, D) on the SCSI hot-docking backplane, and place it away from the bay area.
9. If a CPU module is installed in CPU 2 connectors J6J1 and J6D1 on the system board, replace its retaining bracket.
10. Position the metal door at an angle of 45 degrees in front of the hot-docking bays, and slide the door tabs into the chassis slots.
11. Gently close the metal door, and secure it to the chassis with the two captive spring-loaded thumbscrews.
12. For security and to prevent unauthorized entry into the hot-docking bays, insert a padlock through the metal door and chassis, and lock it.
13. Close the lower plastic front door of the server, and replace the side cover.
| 
