Computer shut down, won't boot anything

May 12, 2011 at 19:57:14
Specs: Windows Vista
My computer shut down, and now when I try to start it, it won't boot. The power comes on, the fans start spinning, and it lights up, but that's it. I suspect it might be the MB or the RAM, but how I can check to see which, if either, it is?

I built this computer myself, so fortunately I have a link handy with all the parts that went inside:

When I first assembled my computer, I had the exact same problem; power came on, nothing else. I switched the three RAM sticks from one set of 3 slots on the MB to the other 3 (It has six total) and it worked after that, and I didn't think twice about it. Recently it started shutting down a lot (Not error messages or blue screens or anything, just turns off. I didn't even get the "Start in safe mode?" thing when I restarted it), but up until today it would turn back on.

So, my guess is maybe the MB was bad to begin with, and it just now gave out completely. Would that fit the circumstances (everything has power and is running, just nothing will boot)? Is there anything I can do to test that? I read somewhere that removing all the RAM and starting the system might make the MB beep, but I get no such error. No idea if that applies to my system or if it's diagnostically relevant.

Thanks for reading, I look forward to your answers!

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May 12, 2011 at 20:51:59
When did you last clean the inside out of all the dust bunnies, especially around the cpu cooler?

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May 12, 2011 at 21:49:22
I can't say I thoroughly clean out the dust often, but I do occasionaly open the side and blow off what I can. I just finished cleaning out as much as I could now, to no avail, though

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May 12, 2011 at 23:36:35
You can try removing and seating the ram sticks to make sure they are secure in their slots and also reset the motherboard's cmos pin.

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Related Solutions

May 13, 2011 at 01:59:36
My bet is the power supply is failing or has failed. Not sure about your ram issue would have to study that MB a bit more on that one. I recomend checking the amperage on the 12v rail of your psu. I am thinking your getting 12v but only maybe 10-15 Amps.

If you hear the harddrive spin and or the cpu fan then you have power through the MB. It doesn't take much to spin a fan but a great deal more to power the cpu. If there are any other fans plugged into the MB if they are spinning as well I am thinking the MB is good. That PSU should have I think 60 amps at the +12v rail.

One other thought have you tried one stick of ram at a time in each of the six slots?


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May 13, 2011 at 11:53:17
I've tried putting each of the RAM sticks in each of the slots, and I've also tried putting in no RAM; each attempt had the same effect of not doing anything, which led me to suspect the MB. Is the lack of beeping I mentioned earlier insignificant?

How would I check the PSU to see the amperage?

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June 16, 2011 at 14:10:14
I had same issue computer would not shut-down or restart installed sp2 and various up dates, now it will shut down but wont power off, so I have to press power off button, wait 30 sec. and turn power on again but computer wont boot so now I have to power on while holding down F8 this gets it started and it beeps and boots up, is there anyone out there who knows what the hell is up, all I keep getting is offers to fix for x amount of money I think the guys with the fixes probably cause the faults....Norton ain't worth a damn either..

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