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Computer won't post... please please help!

M

madman300

Senior member
I went to start my computer the other day and the thing just won't post. All the fans will get going, the cd drives and hdd fire up but the monitor stays off and I get no beeps. It is a Gigabyte board with Dual AMD 2500+ processors, 512 mb ECC Ram, and an Enermax 420 Watt PSU. Had the thing running for almost a year with no problems. After the initial problem with it booting I began removing things one by one to try to figure out what is wrong. Right now I have only the mobo, 1 processor, and Ram in the board and it is sitting on a cardboard box still no POST.

Things I have tried:

Switching the battery
Clearing CMOS
Different RAM (non ecc)
Different Video card
Different power supply (the only other one I have is a 300watt enermax)

I have enough parts around here that I can switch about anything in and out. However I am getting tired of not having a computer and really tired of messing with this one. Does anyone have any ideas?

thanks

madison
 
oh and on a side note. after the initial death it was giving continious beeps when trying to post (like more than 16+) which made me think it was a memory error. After switching ram the machine started and went into windows and I used it for a bit. I then shut it down for a while came back to it and it wouldnt start up at all. That is where I am now.

is there any chance this could still be a PSU problem?
 
the ram and the cpu that are in it now i just pulled from a working board. still nothing.

it is looking more and more like the mobo but this is what i dont understand. why would it just up and die all of a sudden. Not only that but why would it not work for a while starting working for a couple of boots and then just not post at all?

madison
mtmajor@uiuc.edu

 
Was this your first try booting it after cannibalizing the RAM & CPU from another board? If so, it's possible you cracked the core when installing the CPU. An old friend of mine went through 3 CPU's doing that before finally getting the rig to run. It did the same thing as your rig, the power would come on, but no beeps, no video, no POST.

Another possibility is heat. It's possible the CPU burned up if you didn't properly reattach the heatsink/fan after transplanting (such as reapplying thermal paste), so it booted the first couple times, beeped like crazy to warn you during POST, and eventually konked out.
 
thanks for the suggestions but I highly doubt it. I have three pocressors to switch between (same problem with each) I have built 25+ Athlon systems never burned a processor and never cracked a core. Also the beeping was before anything inside the case had been moved around (other than ram) .
 
quick update... put test ram, test cpu and old video card on different mobo and everything works (with same power supply)... but still cant get the old mobo to work.

any ideas or is my mobo just crapo?

 
alas... i cleaned the mobo really well.. watched some tv and hit the computer on the way by to my room and the thing booted. Has been running and restarting fine since... who knows

thanks for the help...

madison
 
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