If the motherboard doesn't boot with another powersupply, consider it is broken and it might be time for a better PC.
Kees
I have a Compaq Presario 7212 (Or Compaq Presario 7210 ) AT style motherboard with a Pentium 1 that I was installing a secondary harddrive into.
Everything was working until that point, it passed every Norton Utility and Compaq diagnostic test.
This went fine for a few weeks.
The system was running while I was looking at some connectors, I accidentally kicked the harddrive cradle, moving it along its rail slightly and then everything shut down. The power supply was making a weird high pitched noise, as if water was boiling, for a short moment. I'm not smelling anything burning inside the powersupply or on the motherboard.
Now the board no longer wants to boot. The only things that turn on for a moment are the keyboard lights.
The harddrives still do their thing when I turn on the power, the harddrive light from the motherboard even lights up. But the 'power on' light from the motherboard does NOT.
I have re-inserted every powersupply connector. I have put back the original 2 4MB EDO ram simms supplied by compaq. I disconnected the harddrives, floppy drives and tried different configurations. I switched out the Pentium I CPU for an other Pentium I
None of that has worked, what should I try next?
Thanks for reading

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