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Silicon Graphics Zx10 6U Rackmount Owner's Guide
(document number: 007-4329-002 / published: 2000-09-20)
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Chapter 9. Servicing the System
This chapter describes how to replace the major components of your system.
 | Warning: This is a user-serviceable system. Service and upgrade tasks should be performed by users who can follow instructions in a manual to service equipment, and can do so without harm to themselves or damage to the equipment.
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In a RAID system, up to four removable SCA SCSI disk drives may be installed in slots in the disk drive cage at the front of the base unit. The disk drives slide into and out of the disk drive cage, and each disk drive is secured with two latch clips.
To replace a removable disk drive:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
| Warning: Mishandling a removed disk drive can cause the heads to crash! Subsequent failures may not be noticeable for three to six months. Handle disk drives carefully to avoid damage.
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Open the disk drive cage door.
Flip the disk drive's latch clips outward to disengage the disk drive. Wait 30 seconds for the disk drive to spin down and park its heads.
Carefully pull the disk drive out of the disk drive cage.
Label the new disk drive with the same ADP, CH, and ID numbers used on the replaced drive, as appropriate.
If the new disk drive does not have a mounting plate with latch clips, remove the mounting plate from the removed disk drive. Secure the mounting plate to the bottom (circuit board side) of the new disk drive with the screws you removed previously.
| Warning: Removing and attaching the drive mounting plate requires careful handling to avoid contact with the delicate, electrostatic-sensitive parts on the circuit board of the disk drive. Handle disk drives carefully to prevent failure and voiding the warranty for the drives.
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Extend the latch clips on the new disk drive and align the edges of the drive mounting plate with the upper and lower rails from which you removed the previous disk drive. The drive mounting plate faces left.
Push the mounting plate at the center between the latch clips until the disk drive slides all the way onto the rails and firmly engages its connector. The latch clips rotate closed as you push the disk drive onto the rails.
Close the disk drive cage door.
JBOD Disk Drive Device CageIn a JBOD ("just a bunch of disks") system, up to four 3.5-inch x 1.0-inch SCSI disk drives may be installed in bays in the disk drive cage at the front of the base unit. To add, remove, or replace disk drives, you must first remove the disk drive cage.
To add, remove, or replace a disk drive in the disk drive cage:
| Warning: The system is always on when connected to AC power. Before performing this task, disconnect the system's power cord from its AC power outlet.
|
| Warning: Mishandling a disk drive can cause the heads to crash! Subsequent failures may not be noticeable for three to six months. Handle disk drives carefully to avoid damage.
|
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
Open the disk drive cage door on the front panel.
Remove the screws securing the disk drive cage to the base unit. Use a screwdriver with a long, thin shaft to reach the bottom screws. See the following figure.
 | Caution: Do not drop the screws into the chassis, as they may be difficult to retrieve.
|
Pull the cage halfway out the front of the base unit.
Remove the power cables and data cables from any installed disk drives. Note the location of each set of cables so you can replace them later.
Pull the cage completely out the front of the base unit.
If removing or replacing a disk drive, remove the screws securing the drive to the cage, and then remove the drive from the cage.
If adding or replacing a disk drive, insert the drive in the cage and secure it with screws on both top and bottom. Make sure the drive's power and data connections face the open side of the cage.
Set device IDs and other settings as needed on the new drive. See the label on the drive for more information.
Replace the cage halfway into the base unit.
Connect the power cables and data cables to any installed disk drives.
Replace the cage completely in the base unit.
Secure the cage to the base unit with the screws removed previously.
Close the disk drive cage door on the front panel.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
The CD-ROM drive, the floppy disk drive, and (optionally) two EIDE or SCSI peripheral devices are located in the peripheral device cage at the front of the base unit. On some systems, a SCSI device (3.5-inch x 1.0-inch or 3.5-inch x 1.6-inch) is mounted above the peripheral device cage. You can remove and replace these devices, and add a device if a bay is open, in the same way.
To add or replace a device in the peripheral device cage:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
| Warning: The CD-ROM drive contains a laser and is classified as a Class 1 Laser Product. To prevent direct exposure to the laser beam and to avoid hazardous radiation exposure, do not try to open the CD-ROM drive enclosure. Return the drive to the manufacturer for repair.
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| Warning: Mishandling a removed disk drive can cause the heads to crash! Subsequent failures may not be noticeable for three to six months. Handle disk drives carefully to avoid damage.
|
Remove the top cover/side panel and the front panel. See Chapter 7, “Gaining Access to System Components”.
Remove the screws securing the peripheral device cage to the base unit.
Disconnect the power cables and data cables from the devices in the cage. You cannot reach the cables for the floppy disk drive.
Pull the cage out of the base unit, carefully guiding the floppy disk drive cables through the bulkhead opening behind the cage.
Disconnect the power cable and data cable from the floppy disk drive.
To remove a device:
For a 3.5-inch x 1.0-inch device, remove the screws securing the device tray to the cage and pull the tray out of the cage. Then remove the screws securing the device to the tray and remove the device from the tray.
For a 5.25-inch x 1.6-inch device or the floppy disk drive, remove the screws securing the device to the cage and pull the device out of the cage. (Two of the screws for the floppy disk drive are on the bottom of the cage.)
When adding or replacing a device, set the device ID and other jumper settings as needed on the new device. When replacing a device, match the jumper settings on the new device to those on the replaced device. See the label on the device and Chapter 8, “Upgrading the System” for more information on bus identification and jumper settings.
To add or replace a device:
For a new 3.5-inch x 1.0-inch device, remove the screws securing a device tray to the cage and pull the tray out of the cage.
For a 3.5-inch x 1.0-inch device, secure the device to the mounting brackets in the tray with screws on each side. Make sure the device's power and data connections face the open side of the tray. Then replace the tray in the cage and secure the tray to the cage with screws on each side.
For a 5.25-inch x 1.6-inch device or the floppy disk drive, place the device in the cage and secure the device to the cage with screws on each side.
Connect the power cable and data cable to the floppy disk drive.
Align the top and bottom of the cage with the upper and lower rails in the base unit, and push the cage into the base unit, carefully guiding the floppy disk drive cables through the bulkhead opening behind the cage
Connect the power cables and data cables to the other devices in the cage.
Secure the peripheral device cage to the base unit with the screws removed previously.
Replace the front panel and the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
To add or replace a device above the peripheral device cage:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
When replacing a device, disconnect the power cable and SCSI cable from the device.
When replacing a device, remove the screws from each side of the device and lift the device out of the base unit. See the following figure.
When replacing a device, remove the mounting brackets from the device.
Secure the mounting brackets to the new device.
Replace the new device in the base unit and secure it with the screws removed previously.
Connect the power cable and SCSI cable to the new device.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
The system board contains sockets in which expansion cards (such as the graphics controller card) are installed. See Chapter 8, “Upgrading the System” and the System Board Guide for more information on expansion cards and their sockets.
To avoid damaging an expansion card and voiding its warranty, take the following precautions:
Handle the expansion card only by the edges. Do not touch the metallic finger contacts.
Do not bend, twist, drop, or otherwise handle the expansion card carelessly.
Do not expose the expansion card to moisture or extreme temperatures.
Do not remove the expansion card from its antistatic package until you are ready to install it.
To replace an expansion card:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
Disconnect any external and internal cables from the expansion card.
Remove and retain the screw that secures the card to the left card guide.
Pull the card straight out of its socket, and place the card on an antistatic surface.
Remove the new card from its antistatic package and slide it into the socket from which you removed the old card. Push the new card into the socket until it is firmly seated.
Secure the new card to the card guide with the retaining screw (6-32 x 0.25 hex head) removed previously.
Connect any internal and external cables to the new card.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
The system board contains sockets for eight dual inline memory modules (DIMMs).
To avoid damaging a DIMM and voiding its warranty, take the following precautions:
Do not touch the metallic finger contacts.
Do not bend, twist, drop, or otherwise handle the DIMM carelessly.
Do not expose the DIMM to moisture or extreme temperatures.
Do not remove the DIMM from its antistatic package until you are ready to install it.
To replace a DIMM:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
If replacing a DIMM, press the DIMM socket release tabs outward, away from each other; then grasp the top edge of the DIMM and pull it out of the socket.
Remove the new DIMM from its antistatic package. Verify the DIMM has gold-plated fingers that match the gold-plated socket contacts, and the slot keys on the DIMM match the slot keys in the DIMM socket.
Orient the DIMM so that the notches match the keys in the socket.
Push gently straight down until the release tabs snap into place.
Restart the system for the BIOS to detect the new memory.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
For more information on DIMMs, DIMM sockets, and system memory configurations, see the System Board Guide.
On a system with only one processor, a processor bus terminator occupies the other processor slot on the system board. This module ensures proper termination for the processor bus; without it, the system will not function. When you add a second processor, you must remove this module and replace it with the new processor.
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
For more information on the processor bus terminator, see the System Board Guide.
The system board contains sockets for two processor modules. Each processor module is secured to the system board with retention clips.
To replace a processor module:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Pull the locking tabs on the retention clips outward, and slide the processor module out of the retention clips and its slot.
Remove the new processor from its antistatic package, and align the processor module over the retention clips and the slot. The processor module is keyed and fits only one way.
Press the processor module down until it seats in the slot and the locking tabs on the retention clips click into place.
For more information on processors and processor socket locations, see the System Board Guide.
The RAID disk drive cage is located at the front of the base unit, behind a lockable door. The cage assembly is replaced as a single unit.
To replace the RAID disk drive cage:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Open the disk drive cage door.
Remove all disk drives from the disk drive cage as described previously. Note the original location of each disk drive to ensure their correct replacement later.
Remove the top cover/side panel and the front panel. See Chapter 7, “Gaining Access to System Components”.
Remove the screws that attach the front of the cage to the base unit. Support the cage as the last screw is removed. See Figure 9-10.
Gently pull the cage forward until it is partially out of the base unit.
Note the location of the SCSI cable and disconnect the SCSI cable from the back of the cage.
Disconnect the power cables attached to the cage, as shown in the following figure.
| Caution: Do not pull on the wires of the power cables to remove them from their connectors, or damage to the cables will result.
|
Pull the cage the rest of the way out of the base unit.
| Caution: Take care not to damage the printed circuit board on the back of the cage as you remove it from the base unit.
|
Verify that the jumper settings on the back of the new cage match those on the cage being replaced.
 | Note: When the cage is connected to a Mylex RAID controller, jumper connectors JP2 and JP3 must not have any jumpers installed.
|
If the cage being replaced has a SAF-TE card (as described in the next section), remove it from the cage being replaced and install it in the same location on the new cage.
Insert the new cage partially into the base unit.
Reconnect the SCSI cable and the power cables in the same positions from which you disconnected them previously.
Insert the new cage the rest of the way into the base unit.
Secure the cage to the base unit with the screws removed previously.
Replace the disk drives in the disk drive cage. Be sure to install the drives in the same locations from which you removed them.
Replace the front panel and the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
The SCSI Activity Fault-Tolerant Enclosure (SAF-TE) card for the RAID disk drives is located on the back of the RAID disk drive cage.
To remove or replace the SAF-TE card:
Remove the disk drive cage as described previously.
Locate the SAF-TE card in the center of the back of the disk drive cage. See Figure 9-12.
Press the two mounting clips on the outside of the SAF-TE card mounting slot away from each other, and rotate the card to a vertical position and remove it from its slot.
Place the new SAF-TE card vertically in its slot, and rotate the card toward the mounting clips until it snaps into place.
| Caution: Do not apply much force when installing the SAF-TE card, or damage to the SAF-TE card or the disk drive cage may result.
|
Replace the disk drive cage as described previously.
| Warning: There are no user-serviceable parts in the power supply. Return the power supply to the manufacturer for repair.
|
| Caution: The Power switches on the unit's two power supplies are the service disconnect. To remove AC power from the system, you must turn the Power switch on both power supplies to the off ( O ) position.
|
The system has two power supplies. Both must be connected to AC power for the system to operate correctly. However, if one power supply fails, you can replace it without shutting down the other power supply. This hot-swap capability lets you handle a power supply failure without shutting down and powering down the entire system.
When you connect the system's base unit to AC power and turn the Power switches on both power supplies to the on ( | ) position, auxiliary power is applied to the system. Auxiliary power ensures that system components power up quickly when needed.
To replace a power supply:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Set the Power switches on both power supplies to the off ( O ) position.
Disconnect the AC power cords from the AC power receptacles of both power supplies.
Remove the screws securing the power supply to the back of the base unit.
Grasp the handle and pull the power supply out of the base unit.
| Caution: Support the power supply as you remove it from the base unit. Do not let the power supply fall or damage to equipment may result.
|
Push the new power supply into the base unit until it seats in its connector.
| Caution: Support the power supply as you replace it in the base unit. Do not let the power supply fall or damage to equipment may result.
|
Secure the power supply to the base unit with the screws removed previously.
Make sure the AC voltage selection switches on both power supplies are set to the proper line voltage for your location.
If your location uses 90 to 135 volts, the number 115 must be visible.
If your location uses 180 to 264 volts, the number 230 must be visible.
| Warning: If you do not set the AC voltage selection switches on both power supplies correctly, equipment damage may occur when you connect the system to AC power.
|
Make sure the Power switches on both power supplies are set to the off ( O ) position.
Connect the system's power cords to the AC power receptacles on both power supplies.
Turn the Power switches on both power supplies to the on ( | ) position. This applies auxiliary power to the system. The power supply LEDs light when the power supplies are operating.
For more information:
A fan mounted behind the peripheral device cage and two fans mounted behind the disk drive cage provide airflow to cool system components in the base unit.
| Caution: To maintain proper airflow to cool system components, make sure you install a new fan with the label on the fan motor facing toward the back of the base unit.
|
To replace a cooling fan:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
Disconnect the fan's cable from its connector on the system board.
Remove the snap rivets holding the fan to its bulkhead.
Remove the fan from the fan cage or from its bulkhead, carefully guiding the fan's cable clear.
If replacing one of the fans in the fan cage, route the fan's cable through the bottom of the cage and lower the fan into the cage. If replacing the other fan, route the fan's cable under the fan and hold the fan against its bulkhead.
Replace the snap rivets removed previously to secure the new fan to its bulkhead.
Connect the fan's cable to its connector on the system board.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
A small fan mounted between the two processors provides additional cooling for components on this area of the system board.
To replace the processor area cooling fan:
Remove the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
Disconnect the fan's cable from its connector on the system board.
Remove the screws securing the fan to the fan bracket, and remove the fan.
Secure the new fan to the fan bracket using the screws removed previously.
Connect the fan's cable to its connector on the system board.
Replace the top cover/side panel. See Chapter 7, “Gaining Access to System Components”.
| Caution: The fan bracket is secured to the two processor retention clips with the nuts used to secure the retention clips to the system board. If you remove the fan bracket, make sure to remount it between the retention clips and the nuts, not between the retention clips and the system board.
|
See previous procedures in this chapter when necessary. See the System Board Guide for connector and socket locations.
To remove the existing system board:
| Warning: The system is always on when connected to AC power. Before performing this task, disconnect the system's power cord from its AC power outlet.
|
Remove the top cover. See Chapter 7, “Gaining Access to System Components”.
Note where all cables are connected to the system board, and then disconnect them from the system board.
Note where expansion cards are installed, and then remove them, placing them on an antistatic surface.
Remove the DIMMs, the processor modules, and the processor bus terminator (if installed), and place them on an antistatic surface.
Remove the nuts from the processor retention clips, and then remove the clips from the system board.
Remove the 13 screws from the system board.
Lift the system board out of the base unit and place it on an antistatic surface.
To install a new system board:
| Warning: The system is always on when connected to AC power. Before performing this task, disconnect the system's power cord from its AC power outlet.
|
Connect the power switch/LED cable to connector J24 before installing the new system board.
Place the new system board into the base unit front edge first, and then lower the back edge into the base unit. Slide the system board toward the back of the base unit until all mounting holes are aligned with their standoffs.
Secure the new system board to the base unit using the 13 screws removed previously.
Secure the processor retention clips to the system board with the nuts removed previously.
Replace the DIMMs, the processors, and the processor bus terminator (if needed) in the appropriate sockets.
Replace the expansion cards in the appropriate expansion card sockets.
Reconnect the remaining cables to the system board.
Replace the top cover. See Chapter 7, “Gaining Access to System Components”.
CMOS/Clock Lithium BatteryThe CMOS/clock lithium battery is located at the bottom of the system board, next to the lowest expansion card slots. The battery may be hidden under installed expansion cards.
If you must replace the battery, the system will lose its operating parameters stored in CMOS memory. As a result, the system BIOS parameter settings are lost. After you replace the battery, you must reset the date and time and reconfigure the BIOS.
See the System Board Guide for detailed information on replacing the battery and on using BIOS Setup to configure the BIOS.
The base unit has two intrusion alert switches: one for the top cover/side panel, and one for the front panel. You must replace both switches at the same time.
To replace the intrusion alert switches:
Remove the top cover/side panel and the front panel. See Chapter 7, “Gaining Access to System Components”.
Disconnect the intrusion alert switch cable from its connector on the system board.
Remove the screws securing the switches from the base unit and remove the switches, guiding the cable out through the bulkhead opening behind the disk drive cage.
Secure the new switches to the base unit, using the screws removed previously.
Route the intrusion alert switch cable through the bulkhead opening behind the disk drive cage and connect the cable to its connector on the system board.
Remove the top cover/side panel and the front panel. See Chapter 7, “Gaining Access to System Components”.
The Power keyswitch is mounted to the back of the front panel. The Power and Disk LEDs are mounted to a bracket on the base unit behind the front panel. You must replace the keyswitch and Power LED at the same time. See the System Board Guide for connector and socket locations.
To replace the Power keyswitch and LEDs:
| Warning: The system is always on when connected to AC power and the power supplies are switched on. Before opening the system, switch off both power supplies.
|
Remove the front panel. See Chapter 7, “Gaining Access to System Components”.
Disconnect the Power keyswitch/LED cable set from its connector on the system board, and carefully guide the cables out through the bulkhead opening behind the disk drive cage.
Disconnect the Disk LED cable from its connector on the RAID controller card, and carefully guide the cable out through the bulkhead opening behind the peripheral device cage.
Remove the nut securing the keyswitch to the front panel and remove the keyswitch from the panel. See Figure 9-22.
Push the LEDs out of the LED bracket.
Remove the keyswitch, LEDs, and cable assembly from the base unit.
Push the new LEDs into the LED bracket.
Insert the new keyswitch into the front panel and secure it with the nut removed previously.
Carefully guide the Power keyswitch/LED cable set through the bulkhead opening behind the disk drive cage, and connect the cable to its connector on the system board.
Carefully guide the Disk LED cable through the bulkhead opening behind the peripheral device cage, and connect the cable to its connector on the RAID controller card.
Replace the front panel. See Chapter 7, “Gaining Access to System Components”.
Silicon Graphics Zx10 6U Rackmount Owner's Guide
(document number: 007-4329-002 / published: 2000-09-20)
table of contents | additional info | download
Front Matter
About This Guide
Chapter 1. Setting Up the Hardware
Chapter 2. Setting Up the Software
Chapter 3. Configuring the System
Chapter 4. Operating the System
Chapter 5. Troubleshooting Operational Problems
Chapter 6. Reinstalling the Operating System
Chapter 7. Gaining Access to System Components
Chapter 8. Upgrading the System
Chapter 9. Servicing the System
Chapter 10. System Hardware and Specifications
Appendix A. Ergonomics Guide
Index
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