The system does not boot. No hd activity, no keybrd led flash on/off, monitor goes to sleep. All caps on mbrd and video look good. Will try to isolate?
Any suggestions? It is an older system now but stable for long time.
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It could be your motherboard,RAM or PSU. Remove all of the dims expect one and retest.If it didn't help,try to test your PSU/Motherboard in another system.(Or put another PSU/Motherboard in your system and test with it)
Try a spare power supply first; I always have one for problems like this. Otherwise, I would look for a p35 or p45 Intel board (which ever is cheaper) for a replacement.