Monitor Signal Issue

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rman215

Honorable
Dec 12, 2013
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10,510
I’m having an issue with not getting a signal to my monitors when starting my computer. I was thinking it was an issue with my graphics card. So I pulled my graphics card out and replace it with an old one - also checked the cable for any damage. The computer then had signal to the monitors. So now I’m thinking great, it’s just my graphic card. So then I started closing my computer up and connected my large side fan to the fan controller and once again I didn’t have signal to the monitors. I’m starting to think it’s a power supply issue. What do you think?

Here is my computer configuration:


  • Intel i7 4930k
    Asrock x79 extreme 6 mother board
    X4 4gb memory
    x1 ssd
    x3 7200rpm hd’s
    corsair 750watt powersupply
 
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R

rman215

Honorable
Dec 12, 2013
12
0
10,510
KevinAr18,

Yes. The old video card worked after replacing my current video card. With that old card in the case, I connected the large fan and booted up the computer again and got no signal.

For the last hour I've reseated everything - running the cables again, and put the new graphic card back in. The same problem occurred. I was not getting any signal to the monitors. I also tested the voltage with a multimeter to see if it was getting the correct power to the gpu all the pins were reading the correct voltage. So now, I am back to thinking it's the graphics card. It's still covered by warranty so I am going to send it in have them take a look at it. If you think it's something else let me know. Thanks!
 
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rman215

Honorable
Dec 12, 2013
12
0
10,510
It has been a while since I posted last. I ended up sending my graphics card in and just received the new one today. Hoping for success I put the new card in my machine. It took awhile for the monitor to get signal but eventually both monitors had signal. So I restarted the machine again and this time, no signal. So I shut the computer down and unplugged one of my hard drive's under the impression that it was not getting enough power. Sure enough both monitors had signal when I started the machine. So there is definitely a power issue of some sort. Could it be the power supply or motherboard? What do you guys think.
 
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rman215

Honorable
Dec 12, 2013
12
0
10,510
Kevin,

I can still boot into the machine remotely even when the monitors are not getting signal. The interesting thing is... Last night I tried clearing the CMOS. After clearing the CMOS the machine booted back up. I made some adjustments to the UEFI for my RAID volume, saved out the settings and loaded into Windows. I restarted the machine a few times to see if I would loose signal and the computer rebooted without any problems. However, when I tried shutting down and booting up again the computer I ran into the same problem with the monitors loosing signal. At that point I was thinking maybe the CMOS battery is bad. So I took it out and tested it with a multi meter it read, "3 volts"
 
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rman215

Honorable
Dec 12, 2013
12
0
10,510
So here is what it was. I feel very dumb after find out the problem... But it was a good lesson to be learned. Turns out that I had a bad dim module. I went through each dim testing them one by one in a slot until I found the culprit causing the issue. So there yah go. Always try the simple trouble shooting before digging deeper. Thanks for all of the Help!
 
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