IBM 6C1 Service Manual page 147

Table 3. Firmware Error Codes. (continued)
Error Code Description
26800Cxx Machine check occurred.
26800Dxx Machine check occurred, unable to
isolate to single device
Action / Possible Failing FRU
If the location code shown on the
operator panel identifies a card slot:
1. Replace the adapter in the slot
identified.
2. Replace system board.
Location: P1
(See note 3 on page 115.)
If the location code shown does not
identify a card slot, or if there is no
location code, replace the system
board.
Location: P1
(See note 3 on page 115.)
"xx" indicates the PCI bus number
with the error.
1. Attempt to reboot the system to
online diagnostics in service mode;
this preserves the AIX error log. If
the reboot fails, attempt to reboot
from the CD-ROM. If the reboot is
successful, run diagnostics in
problem determination mode to
determine the cause of failure.
Otherwise, continue.
2. Refer to the "Bus SRN to FRU
Reference Table" on page 178
using PCI bus "xx" for isolation of
the failing device.
Chapter 5. Error Code to FRU Index
129