suddenly there's no display after a few minutes since I turn my comp. on (New computer)

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Yossi180

Honorable
Nov 2, 2013
4
0
10,510
Hi.
I'm having a weird problem: I built myself a new comp. a few days ago, it was working just perfect until yesterday it suddenly loses display, saying "no signal" (But the comp. keeps running).
I removed my Sapphire Radeon HD7750 1GB GDDR5, plugged the HDMI cable into the On-Board graphics card, and it works ok. therefore the problem is clearly with the graphics card, but what the hell happened? If it is relevant - that has started happening as I played Rome II.
p.s: I checked if it gets overheated, but that ain't the thing, cause as it loses display the temp. is around 65C.
 
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smorizio

smorizio

Titan
Jan 22, 2010
30,984
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with the new rig...make sure the mb has the newest bios on it. in the bios make sure the first video device is the gpu. connect the gpu and video cable. if the power supply is fine and output what is should and the gpu not heat damaged you should see the cmos boot screen then windows. what your power supply and have you tried resetting the gpu and cmos???
 
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Yossi180

Honorable
Nov 2, 2013
4
0
10,510
My PSU is a brand new Corsair VS550 (550W). When I turn on my computer it starts normally, and it keeps running and there's display for about 5 minutes of use (I can browse, play or anything during that period of time) - and than it just loses display suddenly.

Btw, as I said, I was using my brand new computer for a few days without interupption and it was working great. Howcome it suddenly could happen?
 
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