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Ndure · Posted: Tue Aug 02, 2011 8:48 am Post subject: PC refusing to boot; boot loop

Ok so.. recently my cousin's computer has been refusing to boot and I need some advice to narrow down would could be causing the issue.
Basically what happens is when you turn it on the fans go on for about 5 seconds, no post or anything then shuts off and does it again, and so on.
While I think the issue is with the MoBo or PSU(not really actually, I replaced it only about a 1-2 years ago and I've never had a corsair fail on me), I am kind of inclined to think it's possible that the GPU could be the issue but I'm not sure if a bad GPU would be able to cause the PC to not boot at all? Reason being is because a while ago I replaced the old 8800GTS with a 5770 and ever since then it's been adapting some strange booting habits. For example; when you turn it off it won't be able to boot again unless you flip the switch on the PSU on/off again, same goes for trying to put it to sleep, it won't wake up and you have to switch the PSU on/off again for it to boot. I don't currently have the PC with me right now but will pick it up today.

Anyone have an idea what could be the issue?

Here's the specs;
Antec 900 Case
ASUS P5E-Deluxe LGA 775 MoBo (Pretty sure this is the one)
Intel C2Q Q6600
Radeon 5770 (Forgot the brand)
Corsair 750W PSU

Thanks

Cryoma · Posted: Tue Aug 02, 2011 2:06 pm Post subject:

Reseat everything and report back.

Hero · Posted: Tue Aug 02, 2011 6:55 pm Post subject:

Reset the cmos using the jumper on the mobo. Should see 3 pins and 2 covered by plastic. Take off that plastic and put it so its on the opposite end pin. so if its 1 2 2, make it 2 2 1. 1 being the pin with nothing on it.

Ndure · Posted: Tue Aug 02, 2011 10:27 pm Post subject:

turned out it just needed a cmos reset, took out battery for a few mins and put it back it and it booted up again.

thanks for all of your suggestions, lock please.

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