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my machine keeps shutting down just after i turn on it is not even booting windows and it also looks like there may be a fault with graphics card i cannot get it to stay on long enough to do any diagnostics

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Last Post by finito
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Maybe over heating.

Please open your case and see if the Heatsink is secure.

Are you/Did you hear(ing) any beeps when you did/were boot(ing)?

Single short beep means everything is fine.

Its when you hear multiple beeps that you have a problem.

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my machine keeps shutting down just after i turn on it is not even booting windows and it also looks like there may be a fault with graphics card i cannot get it to stay on long enough to do any diagnostics

Do you have a spare power supply that you could try. If it isn't getting enough power, it may do what yours is doing. I would at least rule it out.

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Do you have a spare power supply that you could try. If it isn't getting enough power, it may do what yours is doing. I would at least rule it out.

The possibility is rather rare, but it doesn't harm to rule it out.

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cannot boot without ram still just turns off stuck in new ram stayed on a bit longer but then off again tested psu working ok and tried a diff one on machine no difference

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no beeps at startup, heatsink is fine

remove heatsink, clean old paste from cpu and apply new paste,also check heatsink of onboard chipset and video card chipset , do the same if possible

Edited by caperjack: n/a

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as i suggested ,replace paste even if you need to go buy some ,and do it to all hs,do you have onboard video or is it a addin video card ,or maybe you have both a lot of board do ,if you have both,remove the addin and try the onboard video .

as you say in first post ,maybe its a dead motheboard

Edited by caperjack: n/a

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machine came on a few mins ago and stayed on longer than before then screen went wonky like as if graphics card was gone then shutdown again

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