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12 Replies Last post: Sep 5, 2007 4:18 PM by rgreen4  
Click to view gidoro's profile New Member 12 posts since
Aug 11, 2007
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Aug 11, 2007 8:24 PM

Dead Motherboard??

I just installed some extra fans in my computer (because it was running hot) and uninstalled Norton's (was going to install AVG) when Windows shut down, but the computer remained on. There was no video signal, but the keyboard and optical mouse lights stayed on. Tried to reboot, but video, keyboard, and mice remained dead. However all my fans were running including CPU and video cad fans and the ethernet light was on.. Because of this, I know the motherboard & video card were powered, but since the keyboard and mouse remained dead I was thinking the MB might b dead.
I hardly used this computer because it had some heat issues and I wanted to provide more cooling before I used it fulltime. The CPU was between 45 -50C, and the video card would get over 100C.
Any ideas what caused this and is it fixable? and how should I go about fixing it?
Please help. Thanks.

My system:
CPu - E6600
MB -Asus P5B-E
Video - BFG 7950GT OC
PS - Antec Neo he 550
Case - Antec P180 (comes with 3 fans and was installing 2 more)
HD - 2 320g sata
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Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
1. Aug 11, 2007 10:26 PM in response to: gidoro
No Video
The CPU has been hot, but not all that hot. I know that C2D chips put out a lot of heat, but I have an E6400 with the OEM heatsink and fan and only one rear fan in my HP system and it never gets too hot.

I am more concerned about the video card, especially the last two letters which indicate that either you or someone has over clocked the video card. Have you also overclocked the E6600 C2D CPU?

It sound similar to the results I got when I inadvertently loaded XP video drivers for my video card in Vista. Not Good, but not physically damaging either. No video, as the song said, the lights were on, but no body was home.

You might get this result from a failed video card. The machine is functioning, but no signal is getting out. It may be sending the carrier signal to the monitor, so you don't get the "check cable" message, but no video signal.

Since this MB requires a video card, do you have another video card that can be swapped in and tested? Preferably another nVidia so you don't get into an extreme driver issue because of the ATI/nVidia incompatability.


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Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
3. Aug 12, 2007 8:50 PM in response to: gidoro
Motherboard?
In a normal Power On Self Test (POST) the lights on the keyboard and drives flash on then off, the the PC starts to boot.

It may also be the Power Supply. Other than swapping in a spare PSU and a spare Video card it will be very difficult to determine. Also only one component should be changed at a time.

The video card can possibly be "borrowed" from another machine to do a test. You are obviously using another machine to send the e-mails. If it has a compatible video card, you could use it for a test.

Other than swapping in components one at a time, we would just be speculating.


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Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
5. Aug 13, 2007 12:29 PM in response to: gidoro
Diagnosis
Some dedicated technicians may have diagnoseequipment, but I don't know of any way you can diagnose a problem on one computer from another.

You are right, a video card from a 2000 era computer will not go in a 2007 MB, unless you just happened to find one with AGP and bought an AGP card.

Your only other options are to see if you have any friends who have items in a spare or secondary computer that can be used as swap in tests, or to take it to a computer repair technician for testing.

Stay away from places like Best Buy and Circuit City, although since its not a manufactured PC and they don't have a factory store to send it to, its unlikely they will touch it.


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Click to view Knifeblade's profile Member 654 posts since
Apr 5, 2007
6. Aug 13, 2007 9:06 PM in response to: gidoro
Honestly, finding AGP in a '07 mobo would be one interesting find, huh? Even finding PCI would be a challenge.


~~~~~~~~~~~~~~~~~~~~~~ Tam >aka Attack Pig<~~~~~~~ 2400 Celeron 2.4 OC'ed to 3.1, FX 5200 O/C'ed to 533 Mhz, PSU to 500W, 768 RAM DDR O/C'ed to 428 Mhz I don't like no's from Dell. However I enjoy making them say yes
Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
8. Aug 14, 2007 8:39 PM in response to: gidoro
Test Video Card
Yes, that is a PCIx16 card and it is even nVidia, so your current drivers may even work.

I know this is a long shot, but hook the monitor from your old computer to the new one and see if there is any image at all when you turn the computer on.

Lets also try a few more tests before you buy the card.


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Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
10. Aug 15, 2007 4:31 PM in response to: gidoro
Motherboard Issues
Well, by eliminating everything else, we would be left with what is probable. We have now eliminated the monitor. Next is to eliminate the video card and anything we can think of.


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Click to view rgreen4's profile Old Hand 3,144 posts since
Oct 22, 2006
12. Sep 5, 2007 4:18 PM in response to: gidoro
Re: Motherboard?

Gidoro - good to hear from you again, and glad you did manage to find a solution. I guess we were all giving the MB the benefit of the doubt. But one of the problems is that not too many people have spare MB's laying around. Of course not a whole lot more have spare video cards laying around.

If you have problems after you get the replacement MB, let us know.


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