Lexmark CX921 power cycling and rebooting

[hellcat]

Machine is in an endless cycle of rebooting after getting to around 90% or so loading.

Any help on what could be causing this?

We have tried to unplug the HDD to test if it was a bad HDD, no change, replaced fuser no change, Could it possibly be a bad main board?

unable to do any actual diagnostics on the machine due to reboot failure or see any history on events on it.

Thanks for the help!

[dalewb74]

firmware? can you boot into the diagnostic menu?

[hellcat]

does the same while trying to boot into diagnostics mode unable to check firmware anyway