Service manual

3-84 AlphaServer GS80/160/320 Service Manual
3.10 Dealing with Corrupt Firmware
Each microprocessor on the CSB runs firmware located in flash ROMs
on the module or backplane close to the microprocessor. If this
firmware is corrupt, a new image can be loaded into the flash ROMs by
having the microprocessor running a fail-safe loader image. Only the
SCM update command can be used to load the new firmware.
Table 3– 13 Fail-Safe Loader Jumpers
Module or Backplane Force Fail-Safe Loader Mode
Standard I/O module (SCM) J17
Power system manager module (PSM) J9
H-switch power manager module (HPM) J3
PCI backplane (PBM) J60