Note: See “System replaceable units” on page 144 to determine which components should be replaced by a fieldservice technician.Beep/symptom FRU/actionThree short beeps 1. Reseat the DIMMs.2. Locate the failing DIMMs:a. Remove all DIMMs from the server.b. Beginning with the primary bank of DIMMs, return one bank of DIMMsto the server at a time, restarting the server each time, until the beepcode error returns.c. Replace one pair of DIMMs at a time in the failing bank with anidentical pair of known good DIMMs, restarting the server after eachpair, until the beep code error returns.d. Replace one DIMM at a time in the failing pair with an identical knowngood DIMM, restarting the server after each DIMM, to identify the failedDIMM. If the beep code error remains after you have replaced bothDIMMs, go to step 3b.e. Repeat steps 2b through 2d until you have checked all memory banks.3. Replace the following components, one at a time, in the order shown:a. DIMMsb. (Trained service technician only) System boardOne continuous beep 1. Reseat the following components, one at a time, in the order shown,restarting the server each time:v (Trained service technician only) Microprocessor 1v (Trained service technician only) Microprocessor 2 (if installed)2. (Trained service technician only) Remove microprocessor 2 and its VRMand restart the server.v If no beep code occurs, microprocessor 2 might have failed; replace themicroprocessor.v If the beep code remains, remove microprocessor 1 and installmicroprocessor 2 in the connector for microprocessor 1; then, restart theserver. If no beep code occurs, microprocessor 1 might have failed;replace the microprocessor.3. Replace the following components, one at a time, in the order shown,restarting the server each time:v (Trained service technician only) Microprocessor 1v (Trained service technician only) Microprocessor 2 (if installed)v (Trained service technician only) System boardRepeating short beeps 1. Keyboard2. System boardOne long and one short beep 1. Video adapter (if installed)2. System boardOne long and two short beeps 1. Video adapter (if installed)2. System boardOne long and three short beeps 1. Monitor2. Video adapter, if installed3. System boardTwo long and two short beeps v Video adapterChapter 6. Symptom-to-FRU index 107
