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Old 05-22-2006, 01:02 PM   #1 (permalink)
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Default Screen goes dead

I just built a new computer and have an odd problem.
After running anything graphics intensive for 10 min, or something not so graphics intensive for a little longer the screen just goes black. After that it spits out an error message saying it is receiving no input. Tried it with a different screen, same problem.

Any clue what could cause this?
My first guess is that the two video cards (SLI) are overheating. When windows finishes booting and idling for 1 min they are running at 50 degrees C.
The cards are prety close together so they might not be getting enough airflow.
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Old 05-22-2006, 01:24 PM   #2 (permalink)
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50C is fine its not overheating , usally the high end cards idle in 50-60 and max at 70-85C

its more likely a psu issue or one of the cards is bad
what psu do you have? brand/model , provide full system specs

download sandra click here , get into hardware-->mainboard , scroll down til youll see "voltage sensors" and take a screenshot
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Old 05-22-2006, 04:49 PM   #3 (permalink)
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Funny enough I've just had the exact same problem with my new 7800GS CO. But I'm afraid to say my card was faulty and I had to send it back and get a replacement. My problem was with 3d graphics. I could use Windows or surf the web but as soon as I started a 3d game my screen would black and I got the "no signal input" message like someone had unplugged the monitor cable. I tried everything from drivers, a new psu, new monitor cable, different cards, you name it, I tried it. Have you tried all the latest drivers etc, what kind of PSU have you got and what wattage is it? Also are the cards new?
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Old 05-22-2006, 06:15 PM   #4 (permalink)
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It cant be just using 3d graphics because it will die if I just let windows sit there for a long time.
The cards are new from newegg
I have used two different monitors and two different cables so that shouldnt be the problem

I guess it could be a faulty card. I didnt update the drivers, just used the ones they came with, that will be done tonight. Will post PSU stats tonight.
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Old 05-22-2006, 09:25 PM   #5 (permalink)
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alright, power suply stats

Name = FX600-gln
http://www.fsp-group.com.tw/english/...d=98&proid=461

600 W

Have 4400 AMD processor
2 G ram
2x GT video cards (dont remember name off the top of my head)

2X hard drives

Video cards have an extra power source of an 6-pin connectore. I used the 6-pin connector off my PSU instead of using 2 4-pins with an adaptor if that makes a difference.


Alright, now my comp works with a second (smaller) monitor. It runs fine, runs for over an hour, and can run games at good resolution. The new monitor which is a 21 in still dies after 10 min or so. Could the monitor be causing this after all?
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Old 05-23-2006, 05:06 PM   #6 (permalink)
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No new thoughts?
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