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Pc wont power up when i connect processor power

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cjw   11-14-2009 at 12:44:38 AM

pc wont power up when i connect processor power

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the_politician   11-14-2009 at 12:57:25 AM
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Think you could give us more details? Full system specs? Did you recently upgrade a component or is it a new build? We don't have much to work with here.

Message quoted 1 times
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ubernoobie   11-14-2009 at 03:05:50 AM
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of course, you need to also plug in the mobo power... DUH


Message edited by ubernoobie on 11-14-2009 at 03:05:56 AM
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hunter315   11-14-2009 at 03:14:36 AM
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http://www.tomshardware.com/forum/ [...] t-problems
Go through every step in that checklist, it should solve your problem. If not provide full system specs and significantly more details.

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photonboy   11-14-2009 at 03:18:27 AM
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I also would like to help but you have not provided enough information.

Here are some points:

1. it could be a bent pin
2. heatsink is unlikely (should start up and then crash if not installed correctly) but maybe a possibility if the protection circuit detects overheating quickly
3. install ONLY the parts needed to start your system.
4. If you have spare parts (different video card) you can try substituting

I'm not really sure what you mean though. Reinstall all your hardware, make sure your processor has the correct power connector to the motherboard etc.

Usually when a system won't power up there's a motherboard issue or someone forgets the CPU power cable.

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Bronze CPUs badge jsc   11-14-2009 at 11:28:52 AM
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And if none of the above works, strip everything out of the case.
Breadboarding:
http://www.tomshardware.com/forum/ [...] adboarding

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cjw   11-14-2009 at 02:55:17 PM
- 0 +

the_politician wrote :

Think you could give us more details? Full system specs? Did you recently upgrade a component or is it a new build? We don't have much to work with here.


sorry ref stupidly description but had to rush out. when just the 24 pin mainboard power cable connected the fans spin and mainboard getting power cos the led on mainboard lights up green. when i connect the 4 pin cpu power cable i just get green light. no fans. its an asus m2a-vm hdmi. had done some work on it recently. is prob a bent pin or similar. end of day new mainboard not massive expense but i like to exhaust most possibilitys

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