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system won't post

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?


I will try a CPU swap but swapping the mobo wont narrow it down past mobo or powersupply. I still won't know for sure which is bad.
 
You sure did verything that I would do. Some things that I would consider...

Is the mouse and Keyboard plugged in? if so, take them out. That can stall a post in some odd cases.

Try flipping the memory to different slots, one at a time, insure that you have the right memory. Not too big, not too small and the right type.

If you've tested all of that...then I would take the CPU some where to test, but unless you really burned it...overclocking? then it's the MOBO. Probably a bad circuit or something like that...

Not sure where you live, but there are some great MOBO/CPU deals at fry's on the weekends....like $149 for 2.8GHz and cheap board.

 
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?

also... i did have the mouse and keyboard unplugged. Nothing in the board but RAM, CPU, and Video card. The board is a bit dusty could cleaning it with isopropyl alc. help? Could there be a "dust" short?

Lastly if I do have to replace the board I think I can get this same one for under $150 on ebay... any other suggestions?

madison
 
Originally posted by: Passions
MOBO is borked!!!!
Click to expand...


yep you've pretty much isolated it down to your old mobo by process of elimination. all your other parts work fine in another mobo so i think it's time to start shopping for a new mobo.
 
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
 
You might want to do a round of Memtest86 on it. If the board is built for ECC modules only, and your test module was not ECC, then the possibility remains that your no-POST was because 1) your ECC module is faulty, and 2) the other module isn't ECC and therefore not workable. Or it could be the motherboard, of course. Good luck, at any rate 🙂
 
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