You are here because the diagnostic tests did not identify
which adapter or device failed, installed devices are incorrect,
a short circuit is suspected, or the system is inoperative.
Follow the procedures below to isolate the failing
FRU (do not isolate non-defective FRUs).
Verify that all attached devices are supported by the computers.
the power supply being used at the time of the failure is operating
(See 'Power Systems Checkout')
- Power-off the computer.
- Check the cables, wires, and connectors for
short circuits and open circuits. Visually check them for damage.
If any problems are found, replace the FRU.
- Remove or disconnect all of the following devices.
- Non-IBM devices
- Devices attached to the expansion bus connector
- Printer, mouse, and other external devices
- Battery pack
- Hard disk drive
- Diskette drive or the device attached to the diskette drive
- IC DRAM card or DIMM card
- PC cards
Remember that removing the hard disk drive, an IC DRAM card,
or any adapter or device, might cause configuration errors.
Ignore error code 174.
- Power-on the computer.
- Determine if the problem has changed.
- If the problem does not occur again,
reconnect the removed devices one
at a time until you find the failing FRU.
- If the problem remains, replace the following FRUs one at a time.
Do not replace a non-defective FRU.
- DC/DC card
- Audio card
- Interposer card
- LCD assembly
- System board
- Processor card (370C, 750Ce, 755C, and 755Cs)
Please see the LEGAL - Trademark notice.
Feel free - send a for any BUG on this page found - Thank you.