Preliminary Steps

Be sure to write down the Xserve's serial number. If the Xserve's software must be set up after service is complete, the serial number will be required for login. The serial number is located on a pull-out tab at the bottom-center of the rear panel. If the Xserve is in the locked position (the yellow security LED on the front panel is on), use the Allen key that came with the Xserve to unlock it. The lock secures the Xserve enclosure top cover and all three drive modules. You can also order...

Server Identifier Light Button

The identifier light on the Xserve's front panel turns on when internal sensors or a systems administrator detects a problem with the Xserve. (The light can also be turned on by pressing the identifier button.) This indicator will help you locate which Xserve in a rack needs servicing. In addition, you can use the identifier button to select several alternative startup methods from the front panel. See Selecting an Alternative Startup Method from the Front Panel in the Troubleshooting chapter....

Remote Monitoring Software

Server Monitor is an application installed with Xserve system software, which can also be installed on a Mac OS X client computer, that provides ongoing status monitoring of the following information about a remote Xserve Enclosure and processor temperature Retrieve logs of activity and Apple System Profiler reports on remote Xserves Restart and shut down a remote Xserve Alert you via email and or page when a significant service issue arises

Part Location

Disconnect the backplane-to-logic board I O cable from the Xserve RAID Card. 3. Disconnect the Xserve RAID Card battery cable from the Xserve RAID Card. 4. Release the thumbscrew that secures the Xserve RAID Card to the enclosure. Note The thumbscrew is captive you cannot remove it. 5. Shift the Xserve RAID Card toward the enclosure side, in the direction of the arrow shown, until it clears the four mushroom-shaped standoffs that hold the card in place. 6. Rotate the Xserve RAID Card up...

Tools

Loosen the two captive screws that secure the riser bracket to the back panel. 2. Carefully pull up on the bracket and riser, to disconnect the riser from the logic board. If you are removing a blank riser card so that you can install a graphics card in the riser, do the following Remove the screw on the riser bracket and remove the port access cover. Seat the PCI card in the riser slot and replace the screw to secure the card in the riser. 3. If you are removing a riser card so that you can...

Replacement Procedure

Replacement Note When replacing the logic board, make sure the board's rear port connectors fit through the appropriate openings in the Xserve's back panel. With the front edge of the board raised 1-2 inches 3-5 cm , guide the connectors on the back edge of the board into the openings in the back panel of the chassis, then lower the front edge of the board into place. Take special care to fit the clear plastic system identifier button through its opening. Replacement Note Remove the battery...

Fire Wire Devices

FireWire device connected to port on back panel No FireWire device icon 1. If the Xserve is locked, unlock it. 2. Verify that the FireWire device is turned on and the FireWire cable is securely connected to the device and the Xserve. 3. If the device requires external power, make sure it is plugged in. 4. Check that the FireWire device is listed in System Profiler. If it is, go to step 5. If it is not, go to step 6. 5. Check the FireWire device documentation to see if additional drivers are...

Internal Sensor Locations

Xserve Late 2006 includes many built-in sensors that report on hard drives, internal temperature, fan status failure, and power status failure. These sensors allow you to monitor the Xserve's operation. For more detailed information, see the Appendix at the end of this manual. The Xserve's status lights are shown in the figure below. The Xserve's status lights are shown in the figure below. Note The front bezel of the Xserve Early 2008 model is identical to the Xserve Late 2006 image above...

Front View

Note The front bezel of the Xserve Early 2008 model is identical to the Xserve Late 2006 image above except the FireWire 400 port is replaced by a USB port, as shown below Note The rear panel of the Xserve Early 2008 and Xserve Late 2006 model is identical to the image above except you might notice differences if a power supply blank is installed or one or more expansion cards are installed.

Overview

The Xserve Late 2006 and Xserve Early 2008 models are server computers designed to mount into a rack Apple recommends that you remove the server from the rack before replacing or installing all parts except hard drives. You can replace hard drives while the Xserve is operating and still in the rack. The only noticeable external difference between the Xserve Late 2006 model and the Xserve Early 2008 model is the port next to the system identifier button on the front bezel. On the Xserve Late...

Power Supply Verification

To power on, the Xserve's logic board requires trickle power. If the system fails to power on, first reset the SMC as described in this chapter. If the Xserve still doesn't power on, follow the procedure outlined below to determine whether the issue is related to the power supply. Diagnostic LED DS9C4 5VSTBY indicates the presence of trickle power required by the logic board to begin the startup process. LED DS9C4 should be ON when the power supply is plugged into a good AC outlet, indicating...

Apple Xserve Diagnostics AXD

Apple Xserve Diagnostics performs several tests on the Xserve's hardware and creates a test report. The diagnostic software is located on the Xserve's Server Admin Tools disc, which can be used to start up the Xserve and execute these diagnostic tests. Also, using a remote admin computer, you can run tests on either a working Xserve or on a Xserve that does not start up normally. For more information on how to configure and use AXD, please refer to the user's guide that comes with the...

Appendix

Xserve Late2006

DC CURRENT SENSORS MEASURED IN AMPS Backplane, Total Current Tor 12V, which includes the SV and 3.3V Regulators CPU B, Core Low Side iVegre Current FBDIMM, P1V5 High Side 12V Current FBDIMM, P1V8 High Side 12V Current MCH and ESB2, Core High Side 12V Current VOLTAGE SENSORS MEASURED IN VOLTS DC TEMPERATURE SENSORS MEASURED IN DEGREES CELSIUS System, Ambient Temperature Left Chunnei System, Ambient Temperature Right Chunnel CPU A, Ambient Temperature On the MLB, Fan Exhaust CPU A, Ambient...

Apple Drive Module

Xserve Late 2006 includes three hard drive bays on the front panel. Hard drives come as modules, known as Apple drive modules ADMs , attached to carriers they are removed from or installed in the Xserve as a unit. ADMs have been available from Apple in various capacities for all Xserve and Xserve RAID models, and in multiple interface types. Xserve G4 and Xserve RAID use parallel ATA PATA ADMs, and Xserve G5 uses serial ATA SATA ADMs. Xserve Late 2006 can use SATA ADMs, and ADMs with a new,...

Exploded View Xserve Late

Hard Drive 80 GB 661-4029 73 GB 661-4031 300 GB 661-4032 750 GB 661-4100 Optical Drive Combo 661-4033 Super 661-4034 Drive Interconnect Backplane 661-4648 Power Distribution Board Cable 922-8474 Drive Interconnect Backplane 661-4648 Power Distribution Board Cable 922-8474 2.8 GHz 661-4657 1 gb 661-4645 Hard Drive 80 GB 661-4473 73 GB 661-4474 300 GB 661-4476 1 TB 661-4475

Resetting the Logic Board

System Management Controller SMC Reset The System Management Controller SMC is a chip on the logic board that controls all power functions for the Xserve. If the Xserve is experiencing any power issue, resetting the SMC may resolve it. The SMC controls several functions, including Telling the Xserve when to turn on, turn off, sleep, wake, idle, and so forth Handling system resets from various commands It is also recommended that the SMC be reset on any new logic board after it is installed as...

Whats

Xserve Late 2006 Display Port

The following table shows the main feature differences between models at product introduction PC2-5300 667 MHz DDR2 FB-DIMM 240-pin 1 GB 2x512 PC2-5300 800 MHz DDR2 FB-DIMM 240-pin 2 GB 2x1GB 80 GB Serial ATA 300 7200 rpm 73 GB 300 GB 750 GB 80 GB Serial ATA 300 7200 rpm 73 GB 300 GB 750 GB 1TB FW 400 one at front FW 800 two at rear Serial-Attached-SCSI SAS drive modules supported Power supply redundancy supported Built-in video out via mini-DVI port PCI-X and PCI-E expansion cards supported...

How to Use the Symptom Charts

The Symptom Charts included in this chapter will help you diagnose specific symptoms related to the product. Because diagnostic steps are listed on the charts in the order of most likely solution, try the steps in the order presented. Verify whether or not the product continues to exhibit the symptom. If the symptom persists, try the next step. Note If a step instructs you to replace a module, and replacing that module does not resolve the symptom, reinstall the original module before you...

Network Problems

Open the Network system preference pane and select the built-in Ethernet option. Verify that you can now see devices on the network. 2. If only one Ethernet port is in use, verify that it is the lower port. If it is not, move the Ethernet cable to the lower port. 3. Boot the Xserve from the Installation disc. Go to another computer on the same subnet and start Server Assistant. If the Xserve can be seen, the Xserve hardware should be functioning correctly. Check the software configuration on...

USB Devices

At startup, cursor does not move with the Apple mouse 1. If the Xserve is locked, unlock it. 2. Verify that mouse and keyboard connections are secure. 3. If the mouse is connected to the keyboard, connect the mouse to one of the USB ports on the back panel instead. If the mouse works, replace the keyboard. 5. If the mouse is connected to one of the USB ports on the back panel, switch to the other USB port. If the mouse operates correctly, replace the logic board. You can also use System...

Xserve -raid Battery

Xserve Battery Location

Remove the old battery from the holder. Note You can insert a plastic pry tool under the battery to ease the grip between the spring and the holder. Then slide out the battery. Warning To avoid risk of explosion, replace battery only with type CR2032. 2. Insert the replacement battery in the holder with the positive side up and the negative side down. Important Dispose of the old battery according to the manufacturer's instructions and your local environmental laws. 3. Close the Xserve and...

Memory Diagnostic LEDs

Powermac Dimm

The Xserve Late 2006 logic board includes diagnostic LEDs for each FB-DIMM. Each of the LEDs will light if it detects an issue with the corresponding installed FB-DIMM. These LEDs will also flash briefly when the computer is started up or shut down and when it goes in and out of sleep mode. This is normal behavior. Shutdown and restart the computer. Try reseating the FB-DIMMs. Check memory installation instructions for proper installation order. Swap affected FB-DIMM with known good FB-DIMM....

Procedure

End Apple Server

Pull back the latch to release the gear end of the locking mechanism rod. 2. Tilt up the gear end of the rod and remove the rod from the server. 3. If you are replacing the plastic gear on the end of the rod, slide the gear off the rod. Replacement Procedure 1. To install the gear, slide it onto the notched end of the locking rod, aligning the narrow end of the gear with the end of the rod. Note Make sure the rib inside the gear engages with the notch in the rod. To install the locking rod,...

Startup

System is completely dead no fan array movement and power LED is not illuminated 1. Verify that the rear system ID button on the back of the logic board aligns with the opening in the chassis back panel. If it does not, realign the logic board. 2. Verify the power outlet is good. 4. Disconnect external devices, including the display, and start up the Xserve. 5. Remove both internal PCI riser cards and any installed expansion cards and start up the Xserve. 6. Verify that the power supply is...

Internal Optical Drive

Optical disc icon does not appear on the desktop 1. If the Xserve is locked, unlock it. 2. Check to see if the optical drive is listed in System Profiler. If it is, go to step 3. If it is not, go to step 8. 3. Verify the correct type of disc is being used. Try using a known-good disc. 4. Try cleaning the disc. It may not mount if it is dirty or scratched. 5. If there is a disc stuck in the drive, eject it by connecting a USB mouse and restarting the Xserve while holding down the mouse button....

PowerOn Self Test POST Error Indications

A power-on self test in the Xserve's ROM automatically runs whenever the Xserve is started up after being fully shut down the test does not run if the Xserve is only restarted . If the test detects a problem, the status LED located above the power button on the front of the Xserve will flash in the following ways One short flash followed by a longer off period If the system does not have any valid memory to boot from due to 1 no FB-DIMMs detected, 2 memory initialization failure or 3 a quick...

Hard Drive Modules

Apple Drive Module does not mount or is not recognized by the Xserve 1. Verify that the correct, compatible drive module is being used. See Hard Drive Modules in the take-apart chapter for more information regarding Apple Drive Module compatibility. Do not attempt to force an incompatible drive module into the Xserve or drive module and or drive bay connector damage could result. 2. Remove the drive module from the Xserve and inspect it for any damage to its connector or the connector in that...

Formatting the Hard Drive

If you replaced the hard drive with a new one, format the new hard drive by following the steps presented here 1. Start up from the Install Disc that came with your server, and choose the language. 2. From the menu bar, choose Utilities gt Disc Utility. 3. To format the primary drive, use the Disc Utility on the Install disc. 5. Click on Options, and verify GUID is selected if this is the startup drive. 6. Name the volume Macintosh HD. 7. Apply the change by clicking the Partition tab. 8. Leave...

Take Apart

Backplane-to-Logic Board I O Cable 47 Front Bezel Assembly for Xserve Late 2006 56 Front Bezel Assembly for Xserve Early 2008 59 Front Bezel Brackets for Xserve Early 2008 62 Light Pipe for Xserve Late 2006 66 Light Pipe for Xserve Early 2008 69 Packing the Used Logic Board Xserve Early 2008 Only 113 Replacement Procedure 115

Diagnostic LEDs

Imac Diag Led Location

The logic board includes three sets of LEDs to help service providers troubleshoot the Xserve System status LEDs 1 in the illustration below CPU status LEDs 2 in the illustration below EFI POST LEDs 3 in the illustration below The LEDs are located toward the rear of the logic board. You must remove the top cover of the Xserve for the diagnostic LEDs to function. Refer to the charts and information on the following pages for how to interpret the LEDs. Power supply is providing trickle power....