Desktop won't post, need some advice

August 26, 2011 at 14:01:02
Specs: Windows 7, pentium 4 3.2ghz
My computer is about 6 years old and i think it's starting to show its age. I plan on getting another but would like to salvage this one if possible. For about a month, when i booted it up it told me that the system voltage was low, so I needed to replace the cmos battery. I never got around to it and one day while my wife was using the computer it went to a blue screen. she tried to reboot and it is completely locked up. It only shows the Dell.com logo in large letters in the middle of the screen and the pentium 4 logo in the bottom right. That's all it does now, that and it sounds like the disk drive is about to take off!
I've tried taking out all the components but the vital ones (HD, video card,ram,etc ) and that didnt work. tried to reset the cmos pins, no dice. I'm at a lose, any ideas if resetting the bios might help, or is my MOBO shot?

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#1
August 26, 2011 at 14:37:28
Sounds like a bad power supply. You could always buy a new one at a place where you can return it. Six years on a chepo psu is good. What kind of system is it?

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#2
August 31, 2011 at 04:08:15
It's a Dell dimension 8400 that my dad gave me to start college. It's been moved around quite a bit and hopefully has a few more licks still in it. I'll definitely try a new PSU, now that I think of it, there's not a filter on the fan and we have a couple of dogs now. So it may have just clogged and locked up!?

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#3
August 31, 2011 at 20:53:30
Also blow out the inside of your case with compressed air from a compressed air can sold at electronic and office supply stores.

You have to be a little bit crazy to keep you from going insane.


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#4
August 31, 2011 at 21:03:27
Did you ever get around to replacing that battery? I'd do that before the PSU. Personally I have not yet seen a psu fail at all and still give you anything on the screen. I am not saying it won't happen I just have not seen it.

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#5
September 1, 2011 at 08:59:50
yes, the first thing I did was replace the mobo battery hoping that it was gonna be a cheap and easy fix. was kind of my thought too about the psu, but maybe its just not putting out enough juice anymore? im gonna give a new psu a shot, but i'm thinking the mobo or cpu is fried. Can't get to the bios or anything, its just a static screen. really wish this thing was still in warranty :P

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