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Fans spinning, but computer not always booting

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  • New Build
  • Systems
Last response: in Systems
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October 11, 2011 3:15:46 AM

Hi, I made a similar thread to this about a week ago, but got no replies. I've gone through the threads mentioned in the stickies above but I still can't seem to get past this problem.

Anyways, this is my first ever self-build, and I put it together about 2 1/2 weeks ago. Sometimes, I can get into it perfectly fine, and play games for hours on max settings without so much as a hiccup. Other days, I can't even get it to boot. When I hit the power button, the case, video card, CPU, and PSU fans spin up, and I can open up the DVD drive, but I get no video feed.

I've tried everything I can think of to fix the problem without taking the whole thing apart again, which is the next thing I'm planning on doing if I can't figure it out sooner. I've checked my CPU, video card hard drive, and 2 different sets of RAM modules(not at the same time of course).

On reading through the threads mentioned in the stickies in this section, I did notice there's one motherboard standoff point that I didn't screw in, but that was because there isn't a hole in the case for that position, despite the case (Antec 300) saying it was suited for ATX standard motherboards. Could that be the reason I'm getting this inconsistency?

Components:
Mobo: Gigabyte GA-870A-USB3
CPU: AMD Phenom II X4 955 Black edition, 3.2 gHz, using stock heatsink
GPU: EVGA GeForce GTX 460
HDD: Seagate Barracuda 500GB 7200rpm
PSU: OCZ Modx-stream pro 700w
RAM: Initially used G-skill RipJaws 4gb(2x2) DDR3(2000 mHz), switched to Corsair Vengence 8gb(2x4) DDR3(1600)
Windows 7 Home premium, 64 bit
Case: Antec Three Hundred

I hope I was detailed enough for anyone reading this.
Any help will be very appreciated, thanks in advance.

More about : fans spinning computer booting

October 11, 2011 5:11:51 AM

I suspect that the Motherboard is the issue. Your Case should have the correct holes to place the mounts. Have you placed a Mount in the wrong position? If so this could cause the Motherboard to Short out on the Case.
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October 12, 2011 11:52:07 PM

Apologies for the delayed response

Wamphryi said:
I suspect that the Motherboard is the issue. Your Case should have the correct holes to place the mounts. Have you placed a Mount in the wrong position? If so this could cause the Motherboard to Short out on the Case.

I mapped out the mounts before I placed the board in, so I don't think that could be the case.

Actually now it seems that at random I'm getting a SYSTEM_SERVICE_EXCEPTION with a stop message of 0x0000003b.
I did some research and from what I can gather this is caused by bad video card drivers. I don't know how much I can believe that since I've re-downloaded and re-installed the latest drivers at least 4 times from nvidia's site. Now my concern is that the card itself could be faulty. Anyone else think that may be the reason?
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October 13, 2011 12:01:05 AM

I had a very similar problem last week as well. I found out my problem was the Jumper Cap on the CCMOS was not right. Not sure if that will solve your problem though.
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October 13, 2011 1:00:47 AM

I'm a bit new with this sort of stuff, how exactly can I check that and/or adjust it?
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October 13, 2011 8:37:12 AM

tmarkm said:
I'm a bit new with this sort of stuff, how exactly can I check that and/or adjust it?


Every motherboard is different. You will have to look in the mobo manuel for CMOS and how its configured. Just follow the steps for "Resetting CMOS".
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