IBM 201 - Manual (Page 102)

Table 15. POST beep codes (continued)
Symptom FRU/action
3-1-1 (Timer tick interrupt
failed) System board
3-1-2 (Interval timer channel
2 failed) System board
3-1-3 (RAM test failed above
address OFFFFH)
1. DIMM
2. System board
3-1-4 (Time-Of-Day clock
failed)
1. Battery
2. System board
3-2-1 (Serial port failed) System board
3-2-2 (Parallel port failed) System board
3-2-3 (Math coprocessor
failed) Processor
3-2-4 (Failure comparing
CMOS memory size against
actual)
1. DIMM
2. Battery
3-3-1 (Memory size
mismatch occurred; see the
Hardware Installation
Guide.)
1. DIMM
2. Battery
3-3-2 (Critical SMBUS error
occurred)
1. Disconnect the server power cord from outlet, wait 30
seconds and retry.
2. System board
3. DIMMs
4. DASD backplane
5. Power supply
6. Power supply backplane
7. 12 C cable
3-3-3(No operational
memory in system)
1. Install or reseat the memory modules, then do a 3
boot reset. (See the Hardware Installation Guide.)
2. DIMMs
3. Memory board
4. System board
Two Short Beeps
(Information only, the
configuration has changed)
1. Run diagnostics
2. Run Configuration/Setup
Three Short Beeps
1. DIMM
2. System board
One Continuous Beep
1. Processor
2. System board
Repeating Short Beeps
1. Keyboard
2. System board
One Long and One Short
Beep
1. Video adapter (if present)
2. System board
90 NAS 200 User’s Reference