Check Procedures 39
Table 2-2 BIOS Error Beeps List
NOTE:
To diagnose a problem, first find the BIOS error beeps in left column. If directed
to a check procedure, replace the FRU indicated in the check procedure. If no
check procedure is indicated, the first Action/FRU listed in right column is the
most likely cause.
BIOS Error Beeps
(L: long beep, S: short beep)
Action/FRU
L-S-L-L
DMA internal register test fail
L-S-S-S
KBC (keyboard controller) self
test is failed or not installed
L-S-S-L
Shutdown byte in RTC/CMOS
read/write test failed
System board
L-S-L-S
System DRAM refresh cycle is
out of specification
L-L-L-S
The first 128KB of base memory
r/w test failed
Insert the memory modules in the DIMM sockets
properly, then reboot the system.
Memory module. See the “Step 005” of “Memory”
on page 57 to replace memory module.
System board
L-L-S-L
The BIOS code in flash ROM is
corrupted
See “Flash (BIOS) Update Procedure” on page 9
System board
L-S-S
Video buffer has error
Video adapter card
System board
S-S
Console does not exist and
message displayed to terminal
Reconnect monitor.
Monitor.
L-L-S-S-S
No DIMM installed
Ensure the system board has memory installed.
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