IBM 8681 Hardware Maintenance Manual - Page 176

I/O Function Card, Memory Card A, slot

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Page 176 highlights

Beep/Symptom 1-2-1 (Programmable Interval Timer failed) 1-2-2 (DMA initialization failed) 1-2-3 (DMA page register write/read failed) 1-2-4 RAM refresh verification failed 1-3-1 (1st 1MB RAM test failed) 1-3-2 (1st 1MB RAM ECC test failed) FRU/Action 1. I/O Function Card 2. I/O Board 1. I/O Function Card 2. I/O Board 3. Processor Controller Board 4. Processor Daughter Board 1. I/O Function Card 2. I/O Board 3. Processor Controller Board 4. Processor Daughter Board 1. Processor Controller Board 2. Processor Daughter Board 3. Memory Card 1. Remove DIMM in Memory Card A, slot J1, or, if not populated, the slot closest to J1. Attempt to boot the system. If it boots, replace the DIMM. If it does not boot, suspect the following FRUs. 2. Memory Card A 3. Memory Card B, if installed 4. Processor Controller Board 1. Remove DIMM in Memory Card A, slot J1, or, if not populated, the slot closest to J1. Attempt to boot the system. If it boots, replace the DIMM. If it does not boot, suspect the following FRUs. 2. Memory Card A 3. Memory Card B, if installed 4. Processor Controller Board 168 Netfinity Server HMM

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Beep/Symptom
FRU/Action
1-2-1
(Programmable Interval
Timer failed)
1.
I/O Function Card
2.
I/O Board
1-2-2
(DMA initialization failed)
1.
I/O Function Card
2.
I/O Board
3.
Processor Controller
Board
4.
Processor Daughter
Board
1-2-3
(DMA page register
write/read failed)
1.
I/O Function Card
2.
I/O Board
3.
Processor Controller
Board
4.
Processor Daughter
Board
1-2-4
RAM refresh verification
failed
1.
Processor Controller
Board
2.
Processor Daughter
Board
3.
Memory Card
1-3-1
(1st 1MB RAM test failed)
1.
Remove DIMM in
Memory Card A, slot
J1, or, if not
populated, the slot
closest to J1.
Attempt to boot the
system.
If it boots,
replace the DIMM. If it
does not boot,
suspect the following
FRUs.
2.
Memory Card A
3.
Memory Card B, if
installed
4.
Processor Controller
Board
1-3-2
(1st 1MB RAM ECC test
failed)
1.
Remove DIMM in
Memory Card A, slot
J1, or, if not
populated, the slot
closest to J1.
Attempt to boot the
system.
If it boots,
replace the DIMM. If it
does not boot,
suspect the following
FRUs.
2.
Memory Card A
3.
Memory Card B, if
installed
4.
Processor Controller
Board
168
Netfinity Server HMM