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Table 5. Firmware Error Codes. (continued)
Error Code Description
2100 0002 Unsupported SCSI bus mode - high
voltage differential
Action/
Possible Failing FRU
Before eplacing any system
components, refer to the notes in
error code 21A0 0xxx.
1. Disconnect the SCSI cable from
the SCSI controller the location
code identifies and reboot the
system.
2. If the error code persists, replace
the SCSI controller (or I/O planar
if SCSI controller is integrated).
3. Reconnect the SCSI cable
disconnected in step 1, and
remove all the SCSI devices
attached to the cable and reboot
the system.
4. If the error code persists, replace
the SCSI cable.
5. One at a time, reconnect the
SCSI devices disconnected in
step 3. If the error code returns,
replace the last SCSI device you
reconnected.
If all SCSI devices have been
reattached and the error code has
not been returned, there may have
been a bad connection. Go to "MAP
410: Repair Checkout" in the
RS/6000 and Eserver pSeries
Diagnostics Information for Multiple
Bus Systems .
Chapter 5. Error Code to FRU Index
199
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