HP Rp2430 - Server - 650 MHz User Manual page 68

A-Class System Service
A-Class Server Trouble Shooting
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Before You Do Anything...
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NOTE
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General SLC SIMM Troubleshooting.
NOTE
A-Class servers can only use Cache Memory SIMMs with part number A5182-60002. Using Cache
Memory SIMMs with any other part number may result in the server failing it's selftest.
Step 1.
Remove both SLC SIMMs and place on an ESD mat.
Step 2.
Power up and observe LEDs
Step 3.
If fault does not recur, the problem is with the SLC SIMMs. Either replace both SLC SIMMs, or
proceed to the Single SLC SIMM Troubleshooting. subsection below.
Step 4.
If the fault recurs, the problem is with the system board. To replace the system board, replace the
A-Class Exchange Base Unit (EBU). Refer to the Replacing an A-Class Server Exchange Base Unit
(EBU) section.
Single SLC SIMM Troubleshooting. To troubleshoot SLC faults to a single SIMM, a
known-good SLC SIMM is required.
Step 1.
Install the known-good SLC SIMM in slot A and install one of the original SLC SIMMs in slot B of
the pair that failed. Power up and observe front panel LEDs.
Step 2.
If the fault does not recur, the problem was caused by the SIMM that is not presently installed.
Boot the system and resume normal operations. If the fault recurs, proceed to step 3.
Step 3.
Replace the SLC SIMM in slot B with the other original SLC SIMM. Power up and observe front
panel LEDs.
Step 4.
If the fault does not recur, the problem is with the SLC SIMM previously installed in slot B. Boot
the system and resume normal operations.
Step 5.
If the fault recurs, the problem is with the system board. To change the system board, you must
replace the A-Class Exchange Base Unit (EBU). Refer to the Replacing an A-Class Server
Exchange Base Unit (EBU) section.
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Use a grounding mat and an anti-static wrist strap.
Wear the anti-static wrist strap to ensure that any accumulated electrostatic charge is
discharged from your body to ground.
Power down the system.
Unplug the server.
Cabinet-mounted servers must be removed from the cabinet before proceeding.
Remove the top of the server by unscrewing the knurled captive screws on each side of the rear
of the server. Slide the top back, lift it off, and set it aside.
Chapter 3