Tom's Hardware > Forum > CPU & Components > Other Components > PC cannot boot
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miinmymug   06-18-2009 at 01:40:14 PM

This is my system:
Gigabyte GA-EX58-UD3R mother board
Intel Core i7 920 2.67Ghz
4GB kingston RAM
550W Power supply
1TB HDD
PowerColor ATI HD4870 graphic card

this is my problem. I have build this PC for 3 month now. But recently, it cannot boot. I can't hear any beeping sound when I turned on the power supply. I've checked all the wires are firmly attached. Could someone please tell me what's wrong with my PC ?

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oscarjw   06-18-2009 at 08:33:25 PM

try hardware swopping, like putting older parts in that you now work so once you replace the broken part (if that is the problem) then it will boot, did u burn anything out like was there smoke did it freeze before it died ?? need more then what you given me realy to help you--- any more questions

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tobensg   06-19-2009 at 02:53:23 PM

Could be the power supply. When you press the power switch on your PC does the power supply fans spin up, if so does the CPU fan and any cooling fans? The beep you normally hear comes from the mobo, its a POST Bios beep.

Reply to tobensg
miinmymug   06-26-2009 at 04:58:18 PM

Actually, I bought the component without replacing any old part. In the other hand, it still a fresh made PC. I have checked and double checked all the components. Nothing was burnt or freeze. And the PSu ' s fan working and so does the CPU and cooling fans. But the weird thing is I tried remove the RAM and on the PC, there is still no long beeping or short beeping. I've put it back in and still no effect. That comes same with other components like HDD and my GC.

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armani2468   06-27-2009 at 07:11:20 AM

I would swap out the PSU and maybe Video card.....report back with your findings

jr

Reply to armani2468
miinmymug   06-27-2009 at 06:20:36 PM

do u think that my PSu is not compatible with my video card?

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nytrus90   06-27-2009 at 08:52:26 PM

i stand to be corrected but isnt 550watts a lil too low power for such machine?

ummm.... well i had this issue not too long ago. i didnt get a POST after a reboot, it was weird, i was thinking all kinds of things. was my CPU dead?

Power supply?

motherboard?

Well it turned out that the motherboard had a BIOS that just given up the ghost (dont know how) and it needed to be replace with another up-to-date bios.

im not sure if this is the case here..... but you could try troubleshooting, have it bare bone and replace every component till you find your culprit.

might i just add that try clearing the CMOS by moving the jumpers then moving them back again (see your motherboard manuel on how to do this) then try putting a known good RAM stick in the B1 slot (once again look in your manual) of your mobo then fire her up.

Report back once you have tried this.

Regards

Sean

Reply to nytrus90
miinmymug   06-30-2009 at 06:24:33 AM

still cannot POST. I cleaned the CMOS and try putting back all the components one by one but the problem still there. what can I do?

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nytrus90   06-30-2009 at 06:14:08 PM

then either the mobo is nuked or CPU, i suggest asking a friend if they could test it in their rig, failing that go down to a computer shop and ask then to test it.

Kind regards

Sean

Reply to nytrus90
miinmymug   07-10-2009 at 08:49:44 AM

Finally, it just turn out that my mobo was damaged. Thanks all for helping.

Kimie

Reply to miinmymug
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