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After installing graphics card, computer won't start.

Last response: in Systems
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March 21, 2014 6:45:12 PM

Windows 7 Home Premium
ASUS P8Z77 Pro
MSI GeForce GTX 660Ti
Intel Core i5 3570k 3.4G
Corsair HX 750 PSU

My computer has been running problem free since replacing my PSU a little over a year ago. I recently bought a second GTX 660Ti to run dual graphics. After I installed the graphics card, the computer won't turn on at all. No beeps, just one green LED light on the MB. I tried taking cards out and turning the MB on but it won't respond to anything. The PSU is fairly new and should be enough power to run everything, I checked cables and refitted things, but no change. Reset the CMOS with no luck. Did i somehow blow the PSU? Or the MB? Any more direction would be greatly appreciated.
a c 103 ) Power supply
a c 181 U Graphics card
March 21, 2014 6:53:31 PM

Did you try to boot with your old PSU and one graphics card
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March 21, 2014 6:57:21 PM

The old PSU I replaced crapped out on me so there's no use in trying that one out. I only have the one unfortunately.
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a c 103 ) Power supply
a c 181 U Graphics card
March 21, 2014 10:05:12 PM

Irishsullie said:
The old PSU I replaced crapped out on me so there's no use in trying that one out. I only have the one unfortunately.


Try to reset RAM stick in their slots.
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March 22, 2014 9:15:20 AM

No change, I'm going to take it all out of the case and breadboard it and see if I get a change, then add a piece at a time. Hoping there's just a short in the MB from me putting in the graphics card. Had an issue with this board somewhat similar to this back when I first got it, except it would boot and just keep cycling off and on.
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Best solution

a c 103 ) Power supply
a c 181 U Graphics card
March 22, 2014 9:53:23 AM

Just check out this tutorial to double check and Good Luck :) 
"No POST", "system won't boot", and "no video output" troubleshooting checklist
"No POST", "system won't boot", and "no video output" troubleshooting checklist This checklist is a compilation of troubleshooting ideas from many forum members. It's very important to actually perform every step in the checklist if you want to... See full content
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March 23, 2014 9:26:20 PM

So once I took everything out of the tower and took it apart and back together again, checking one piece at a time, everything worked fine. Kind of seemed like there's a short somewhere in my tower, but for now alls good. As for the next issue, I'll post it in another forum where it's more appropriate.
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a c 103 ) Power supply
a c 181 U Graphics card
March 23, 2014 10:56:03 PM

Irishsullie said:
So once I took everything out of the tower and took it apart and back together again, checking one piece at a time, everything worked fine. Kind of seemed like there's a short somewhere in my tower, but for now alls good. As for the next issue, I'll post it in another forum where it's more appropriate.


At least your machine started work! :) 
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