IBM Motherboard - Fault or something else

Jan 27, 2014
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10,510
I have an IBM PC that will not start, brief spin on the PSU fan (seconds) and then nothing.

Tested the PSU and all was ok - swapped it out anyway - still the same problem.

Removed the RAM and everything comes to life but obviously does not boot (no RAM) - post beeps are 1-3-3-1 - Replaced RAM - still the same problem.

Safe to assume the MOBO is kaput or is there something else to test for?