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How can I tell if my CPU is dead?

post #1 of 11
Thread Starter 
I've been swapping parts like crazy to figure this out, I have it narrowed down to either the motherboard or the cpu. I know a DOA cpu is rare, but how can I tell? The phase lights light up on the motherboard, PSU is ok, no ground issue for the motherboard.

Will the board not even power up if the cpu was dead? Oh yea, no bent pins or anything on the cpu. parts are in my sig. Thanks for the help, I'm really frustrated over this.
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post #2 of 11
I would test the copu on a friends computer to Rule it out

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post #3 of 11
99% sure it's the board.

A dead CPU almost NEVER happens. However a system that will stay on without posting is almost always the board. Especially if the power phase lights on the mobo all stay lit.
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post #4 of 11
Having similar problems with my sigrig currently. Sub'ed for further use.
Things I've tried: RAM is multiple configs, switching video cards, unplugging all drives, taking CMOS battery out while pc is off and unplugged then putting it back in, reseting CMOS with the switch, and tried different PSU(I got this 500W and a 400W).
None of this has worked so far. Getting close to Christmas anyway so it's time to pay ourselves a little present for a year's hard work
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post #5 of 11
Quote:
Originally Posted by Jmartinez06 View Post
I would test the copu on a friends computer to Rule it out

Sent from my DROIDX
This.

Sent from my computer -.-

Oh, if you can get into bios normally and successfully change some settings and view system information, then its probably not the board.

A busted CPU would show you bios, and nothing moar.
A busted board would show you nil.

Good luck!
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post #6 of 11
Thread Starter 
Quote:
Originally Posted by Anton338 View Post
This.

Sent from my computer -.-

Oh, if you can get into bios normally and successfully change some settings and view system information, then its probably not the board.

A busted CPU would show you bios, and nothing moar.
A busted board would show you nil.

Good luck!
Great info, thanks a bunch. Just picked up a new board, going to test everything tomorrow out of the case and see what happens.

Quote:
Originally Posted by boom50cal View Post
Having similar problems with my sigrig currently. Sub'ed for further use.
Things I've tried: RAM is multiple configs, switching video cards, unplugging all drives, taking CMOS battery out while pc is off and unplugged then putting it back in, reseting CMOS with the switch, and tried different PSU(I got this 500W and a 400W).
None of this has worked so far. Getting close to Christmas anyway so it's time to pay ourselves a little present for a year's hard work
I'll let you know how it goes, this is suppose to be my little present too but so far it sucks!
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post #7 of 11
Uh oh. Phase lights and no boots brings back too many bad memories of DOA motherboards. But again, it's an AM3 SLI chipset. Will it not boot, or POST? Unfortuneatly, MSI doesn't utilize an important feature like MemOK to boot with minimum RAM settings, so it could just be your motherboard doesn't recognize the RAM. Double check for the latest BIOS and make sure your RAM and MB are compatible.
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post #8 of 11
Thread Starter 
okay this is weird. i hooked up the new mobo and i only get video signal when my vga is connected. when i use the vga-dvi adapter and plug into the dvi port of the mobo there is no signal. i've tried switching dvi adapters too. anyone have any ideas? this is really a nightmare.
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post #9 of 11
All signs point to MoBo.
    
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post #10 of 11
Quote:
Originally Posted by hlaalu View Post
okay this is weird. i hooked up the new mobo and i only get video signal when my vga is connected. when i use the vga-dvi adapter and plug into the dvi port of the mobo there is no signal. i've tried switching dvi adapters too. anyone have any ideas? this is really a nightmare.
Sorry for getting back so late. But THAT is a good discovery. It means that something's wrong with the adapter. I had the same problem. Tried to hook my system with an HDMI through an HDMI to DVI adapter, no signal. Had to use DVI Direct. Does your graphics card have a DVI port (VGA is a little out dated, but really only has a lesser refresh rate)? I would work on a direct connection.

Is your computer booting when you plugged in your VGA direct? If it does, then it's probably that one simple problem. Make sure you have your speakers plugged in so you can hear the POST beeps.
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Semper Fidelis
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