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Upon testing the Motherboard's FSB Limit, my system will not POST.

post #1 of 11
Thread Starter 
I had recently tried using the Overclocking guide and took my FSB to 230 using Ram Dividers (to keep the RAM below its rated 200 Mhz) and keeping the multiplier set to 7. Upon restarting the computer, the system started beeping. So I turned it off and reset CMOS. Upon starting up the computer, the system did not POST.

I took out the battery of the system and after an hour, still no POST. All the lights turn on (except the power light, but the HDD light turns on fine), the HSF turns on, and everything powers up. However, I still get no video signal. Any ideas?

I suspect it might be my RAM, but I'm not quite sure. It was working perfectly fine just a few moments ago.
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post #2 of 11
Well, did you lock your pci/agp freq? I would suggest taking the card out and put it back in. checking everything to make sure its not a video problem and not computer problem. If you cannot do anthing else, unplug your motherboard overnight with the battery out and let it drain all the power out.
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post #3 of 11
Thread Starter 
I took out the video card and attempted a boot up, still no POST. The system will start up without a video card in it, right?

Again, I'm still not sure exactly what's up. As I said before, everything powers up, but there is no POST.

More ideas are appreciated.

EDIT : I locked the PCI and AGP slots. The NForce2 allows the locking through the 66 Mhz AGP lock. The PCI is just halved. The system booted up fine @ 220 FSB x 7 Multiplier.
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post #4 of 11
Thread Starter 
bump, need more advice please.
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post #5 of 11
Try to take our a stick of ram, maybe one of them is the problem. The idea now is to start testing each component to see if it works fine. It could be of some help so borow a CPU, ram and a VID card from someone just 'till you know what's the problem.
Hope it's not your case, but when this happened to me I ended up RMA the mobo due to toasted NB
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post #6 of 11
Thread Starter 
Quote:
Originally Posted by dragosmp
Try to take our a stick of ram, maybe one of them is the problem. The idea now is to start testing each component to see if it works fine. It could be of some help so borow a CPU, ram and a VID card from someone just 'till you know what's the problem.
Hope it's not your case, but when this happened to me I ended up RMA the mobo due to toasted NB

The funny thing is I did not change the vdd at all. Nor did I change the vDimm or vCore.
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post #7 of 11
At my mobo the problem was the high fsb, I had an ASUS A7N8X-X and it was fully stable at 220MHz fsb, but the NB was quite hot. I didn't give much interest in the NB cooling, and I managed to put my cpu (barton 2500) @11*230, but after a couple of hours it simply died, and it smeled like burned plastic When I tried to turn it back on the fans were turning, the HDD/DVD were moving, but no post. S**t happens... Fortunately I could RMA it
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by dragosmp
At my mobo the problem was the high fsb, I had an ASUS A7N8X-X and it was fully stable at 220MHz fsb, but the NB was quite hot. I didn't give much interest in the NB cooling, and I managed to put my cpu (barton 2500) @11*230, but after a couple of hours it simply died, and it smeled like burned plastic When I tried to turn it back on the fans were turning, the HDD/DVD were moving, but no post. S**t happens... Fortunately I could RMA it
I'll check the components out in another computer to verify that each is in working order. I still don't believe the NB is toast, primarily because my temperatures were quite low ( I had a 3rd party air cooler on the northbridge resulting in 26 C load @ 200 FSB). Again, I did not have the computer on longer than 30 seconds before I went to clear CMOs.
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post #9 of 11
Quote:
Originally Posted by Fivek
I took out the video card and attempted a boot up, still no POST. The system will start up without a video card in it, right?
No it wont start up without a video card in it, well it might but you wont see any thing as the screen wont be connected will it?
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post #10 of 11
Try and boot without a videocard, if you get beeps, your good, if you dont, you Motherboard/CPU is messed up.
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