Dell monitor Turns Black But system Is On

Amd Athlon 64 x2 dual-core 3800+ 2.0 ghz...
August 17, 2010 at 12:13:16
Specs: Windows XP
Hi there,

I'm using a AMD Athlon 64x2 Dual Core Processor 3800+ 2.01 GHz and 3G of RAM. I am also using a GeForce 9400 GT PCI-E 2.0 1GB DDR2.

Recently my computer screen has been turning off. It will either go black or it will go grey. I am using a Dell flat screen monitor. I am not entirely sure what is making my screen do this. When this happens, the tower will stay powered on. I know that it has been extremely hot and humid here lately in California due to Monsoon season. Yesterday it was about 105 degrees with 56 percent humidity. I have been running SpeedFan 4.41. Core and everything else has been steady today at about 49c degrees. Yesterday, I opened up my computer after it the monitor turning off a couple times, and it seemed as if it helped from the air, because it didn't turn off for the rest of the day or night after that.

I do a lot of gaming on my computer. World of Warcraft is about 90% of the most gaming I do. I have had the computer for about 4 years now. Had to replace the video card once before because it blew up. Literally. I have never had any problems with my computer before this, I assumed it was from the heat, but at this point, I'm confused as to what it COULD be.

I have noticed that when it shuts itself off, I can hear things skipping. I let it stay off for a few seconds, leaned my head near the tower and heard a clicking noise. After this, I thought it could be my hard drive. I've had problems with hard drives previously, and they have never gone past the windows screen. They would keep shutting off.

The heatsink isn't very hot. It's just warm. I was thinking about gooing it, but if it isn't the problem, I don't want to mess with it. I haven't updated drivers for my video card, yet. I was about ready to, but thought I should ask someone in advance about this problem before I went out and did something myself.

Could heat and high humidity cause such a problem? At the time of the monitor shutting off, the core was at about 48c degrees, with both sides of my tower open.

If anyone could help with this problem, that would be greatly appreciated.

Thanks in advance. :)

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August 17, 2010 at 12:33:51
The symptoms seem to point to either the monitor itself or the video card, both of which could be affected by heat if they were a bit marginal.

Intermittent faults can be hard to prove unless, for example, you can borrow another monitor for a while.

A number of things can cause clicking, such as fans and HD. To my mind the symptoms don't fit too well with HD problems - I would have expected other issues.

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August 17, 2010 at 12:40:26
I expected it to be the video card. Though I've only had it for about a year now. It's still under warranty, so I'm hoping if that is the problem, I can get a replacement.

How would I be able to know it is the video card? Is there any testing you could do yourself other than putting a different video card in? I don't have another one, which is why I'm asking.

And as for the monitor, I will try to use a different one to see if that fixes the problem.

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August 17, 2010 at 12:48:49
Substitution is probably the only option open to you. Hang on for some input from others on this post tho.

Daylight Saving Time

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August 18, 2010 at 16:07:16
Just an update. I recently had my computer looked at by someone. They removed the video card, "Re-goo'd" it and put it back in. Though, the GPU is was still running at about 56c, the video card was running at the same temperature. After starting the computer up, I started World of Warcraft to see what would happen. Put a little stress on the card and.. BAM. Computer actually shut off this time.

I have removed both sides of my tower, and have placed a small fan pointed directly at the video card. It has been working for the past 3 hours with no problems at all. I have called EVGA and sadly I didn't register my GeForce card 30 days after buying it. Now that I have the invoice from the sell on, I will be able to get a replacement with a 30 day warranty. I'm hoping this helps.

Does anyone know if this could be the power supply? I had the fan pointed in the opposite direction and onto the actual mother board and power supply, but it still turned off. Now that it is on the video card, no problems.

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