Weird power pulsing problem

This morning my second computer started playing up, it seemd to have no power, even the fans could only run at very slow speeds. I thought the PSU was faulty so I put a spare Thermaltake 750 watt PSU in.

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#162426
This morning my second computer started playing up, it seemd to have no power, even the fans could only run at very slow speeds.
 
I thought the PSU was faulty so I put a spare Thermaltake 750 watt PSU in. Now when I turn the power, the lights and fans seem to pulse and nothing else happens.
 
I have tried it without any cards or accessories with no luck also checked the memory
 
Any help would be greatly appreciated

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#162427
Take a look at the motherboard and see if any of the capacitors are blown. They will look either popped up a bit or be oozing if they are indeed blown. If this is the case, your motherboard is fried.
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#162428
I can't see any blown, also I have disconnected every plug / cord / card from the mobo now and no difference. This includes the cords that go to the reset button and all those.
 
I'm guessing the motherboard has died?
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data/avatar/default/avatar06.webp

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#162429
That's mostl likely it. In the unlikely event that you have two faulty power supplies, test one of them out on a spare machine.
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data/avatar/default/avatar35.webp

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#162430
Thanks for the replies. The other half has decided to get a more up to date pc.
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#162431
Well, that's one way of doing it, although you miss out on all the fun of dealing with hardware.
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