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Old April 26, 2013, 03:05 PM
isthatbbq isthatbbq is offline
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Join Date: Apr 2013
Posts: 2
Default Computer keeps on rebooting, can't reach BIOS

A little less than a month ago, my computer suddenly crashed on me while I was browsing the web, and when I tried to turn it back on, it got caught in a boot loop. All my fans would start spinning up for a second, and a few LEDs on my motherboard would turn on, but before reaching BIOS, the computer would turn off. Without me having to do anything, it will try to boot up again, and the cycle will keep on going until I unplug the machine.

I didn't have time to try and fix it since then, but today, I tried a few conventional methods and nothing seems to work. Things I have tried:

1. Resetting CMOS by removing battery.
2. Unplugging everything, and reseating motherboard.
3. After that, I tried booting with nothing installed but the CPU, but the problem persisted.
4. I tested my PSU on another computer and it worked.
5. Pulled the mobo out of the case and ran it with only the CPU installed on top of a cardboard box to insure that there were no shorts.
6. Tried booting with 1 stick of RAM, 2 sticks and no sticks, tested every RAM slot on the mobo as well.

I looked at my bare motherboard but saw no signs of a burn or burst capacitor. I don't know how to check for any physical signs of CPU failure, do you guys have any hints? Does anybody have a clue as to what's going on?

Specs -
CPU - Core i5 2500K
Mobo - Gigabyte Z68X UD4B3 Rev 1.0
SSD - Intel 520 Series 240GB
HDD - WD Caviar Black 1TB
GPU - Radeon HD 6870 (Asus)
PSU - OCZ Z Series 1000W
Chassis - CM HAF 922
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