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post #11 of 36
I had this problem on an old computer and I couldn't figure out why it did it. I spent hours changing PSU, RAM, GFX cards etc. For me it was a gfx card that just refused to work in that rig. But from what I read on various forums, a common cause was an insufficient PSU or one that was going bad.

Have you changed anything within your setup lately?

Quote:
if the problem happens randomly like for example when browsing the web, then its ur monitor
I don't agree with this. Used to happen to me whilst browsing the web and monitor was 100% fine.
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post #12 of 36
Thread Starter 
Quote:
Originally Posted by skaboy607 View Post
I had this problem on an old computer and I couldn't figure out why it did it. I spent hours changing PSU, RAM, GFX cards etc. For me it was a gfx card that just refused to work in that rig. But from what I read on various forums, a common cause was an insufficient PSU or one that was going bad.

Have you changed anything within your setup lately?



I don't agree with this. Used to happen to me whilst browsing the web and monitor was 100% fine.
Thanks for the input.
You gave me an idea about my cheap AVR.
I think it maybe linked to this since at times, I can smell something burnt at the AVR unit part when I'm gaming for more than a few hours.
Could it be somehow linked?

I doubt my PSU is insufficient, and I haven't changed anything.
My newest addition was the GPU, maybe 2 months ago, and I was not able to play DA2 on my iGP.
No experience in black screen with "No Signal" when I was using iGP, maybe because I only use it for web and light games like LoL.

What do you think?
Edited by eduforonda - 8/3/11 at 11:21pm
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post #13 of 36
Quote:
Originally Posted by eduforonda View Post
Thanks for the input.
You gave me an idea about my cheap AVR.
I think it maybe linked to this since at times, I can smell something burnt at the AVR unit part when I'm gaming for more than a few hours.
Could it be somehow linked?
Not sure about this but if its cheap, might be something to replace and check?

Quote:
I doubt my PSU is insufficient, and I haven't changed anything.
My newest addition was the GPU, maybe 2 months ago, and I was not able to play DA2 on my iGP.
No experience in black screen with "No Signal" when I was using iGP, maybe because I only use it for web and light games like LoL.
It's not that your PSU is insufficient, its that it might be throwing out wrong voltages etc. Just was one of the things I checked.

Another thing that I checked was to see whether the motherboard was shorting out anywhere on the case.

You had any luck yet?
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post #14 of 36
Thread Starter 
Haven't had a black monitor for a while.
I haven't changed a thing, still looking for good UPS or AVR.

How did you check the voltages of PSU and short on MoBo?

Thanks again.
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post #15 of 36
Sounds like a ingame setting? Try lowering the graphical settings to low, and playing a bit. See if the blackout persists.
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post #16 of 36
Quote:
Originally Posted by eduforonda View Post
How did you check the voltages of PSU and short on MoBo?
It wasn't something I checked really, I was fortunate enough to have a spare PSU lying around so just chucked it in. Didn't solve it for me but PSU's can cause all kinds of problems. You can monitor voltages using software like OCCT but it is not as accurate as monitoring with a multimeter although this is NOT recommended.

You can log on OCCT so it might be worth starting a log and then playing a game to see if is anything unusual on any of the rails.

Have you got a space GPU you can put in there? Have you updated your drivers? Chipset and GPU etc?
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post #17 of 36
@Op..If you have a UPS in the loop, try first taking it out of the loop and connecting directly to the wall outlet through a surge protector. Next clear the CMOS and take out the battery. Unplug everything and leave it for 30 mins. Take one of the RAM modules out and start with just a single module. Run memtest. if memtest pass then clear CMOS again and now put in the other RAM module by taking out the first one. Again boot and do another memtest. If it again passes then your PSU is the problem. But do this I have a feeling it will solve it. Atleast it solved mine.
post #18 of 36
Most likely it is your video card. Check your gpu and reapply thermal paste with something better,then apply small heatsinks to your vrm chips and add a extra fan to blow on the vrm heatsink if you can. Sounds like your video memory is getting to hot, or the memory itself is going bad. Either way, I would say 99 percent it is your video card.
A bad power supply will cause a reboot, freeze or a shutdown most of the time.
Your problem is famous among ati cards.
post #19 of 36
If i were you I´d RMA that video card. If its not the heat issue or voltage bumps, it could be faulty wiring/connections. I had this no signal error while using my HDMI cable, and the problem was from the receiving end of my Samsung 32" LCD. Are you using HDMI or DVI?
post #20 of 36
Thread Starter 
Thanks all for the replies.

As of now, no occurrence of Black Screen with "No Signal".

I'll try plugging it directly to the wall socket via surge protector, and also the memory test.
Question: how does RAM get involved in this? I really have no idea why.

I'm using DVI by the way and haven't tried HDMI if it's working.
I'll try to borrow from a friend to check.

Also played a bit of Witcher 2 and max temp was 79c, highest on my record so far.
I can't seem to find the allowable max temp, anyone knows?

Again, thanks to all.
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Toto
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