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Agent_Johnson

I Really Need Some Help Here! Desperate!

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I've been having this problem since I put this computer together. At first I thought it was the video card but after two RMA's, I'm quite convinced it's not the video card. This is what it's doing. The most noticable symptom are random flickers or artifacts during bootup when one screen switches to another, like after post and it goes to the next screen. The instant one the screen switches I see a flicker of a random shape and color pattern. Sometimes it's a line or rectangle, sometimes it's the whole bottom of the screen. It is very quick but obviously noticeable. This also happens sometimes when I alt tab out of a program and the screen switches, it's that instant inbetween one screen and another. Happens in other programs as well. I also get artifacting in games but it's not as noticeable. For instance if you stand with an object in front of you like a box and move left to right it gets garbly on the edges, and also if I move the mouse to quickly I see some artifacting.

 

Now, I will tell you what I have tried. Obviously 3 different video cards, nothing changes. Tried one stick of ram at a time, no change. Tried 1 stick in different slots, no change. Tried putting the video card in the other pcie16 slot, no change. Tried different power cable, different monitor cable, no change. Checked all power connections on motherboard. The Enermax Liberty has two pcie +12v connections, tried both. Bios reports 12.22v in bios, mbm5 reports 12.34v in windows. I get no blue screen errors, no black screens, no freezes or lockups, or random restarts. The only problem I have is this random artifacting. I can play battlefield 2 with everything on high settings and it runs smooth as butter, aside from the subtle artifacting here and there. It's sp2004 stable for 10 hours. WTF is wrong with this thing.

 

Now the only think I can think that could be wrong is either the motherboard itself has something wrong, or the psu even though it reports adequate power. My bios is 704-2bta but it did the same thing with old bios so that's not the issue. Video drivers are up to date. I'm just at my wits end with this. I need some help before I end up RMAing the whole damn machine.

 

I should also note that this problem existed prior to overclocking so that isn't the cause.

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By any chance is that 7800GT from eVGA? If so, try flashing to eVGA's new BIOS as they sent out a lot of cards that had the problems that you're describing. It might be a longshot considering you've sent the card back two times, but you never know.

 

Edit: I think you can remedy the problem by just clocking down the card in coolbits. That should be easier, but either way will work.

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Well prior to building this system it worked just fine on the previous pc. Its only a few months old too. Only difference is I'm using a dvi cable now instead of analog. Could it be the dvi cable itself causing that?

 

Yes it IS an evga? They have an updated bios?

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Which model is it? I know the CO had problems with the factory settings being incorrect (1200 instead of 1100 for the memory frequency). I would try clocking down, using Coolbits or Rivatuner, to that and see if that fixes it.

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Yes, a faulty DVI cable could be causing the problems you describe. I'd try using the analog output or a new DVI cable and see if that corrects your problem. If the v/c manufacturer has an updated BIOS out, it probably wouldn't hurt to try that if the cables check out ok.

 

I'd also try a different monitor and see if you are getting the same artifacts.

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Well, I have the updated bios already. Came with the most uptodate one. Man kinda odd the monitor take a poop between unhooking old computer and hooking up new. I am using a different cable though. I'll have to give that a shot but please keep the suggestions coming.

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Which model is it? I know the CO had problems with the factory settings being incorrect (1200 instead of 1100 for the memory frequency). I would try clocking down, using Coolbits or Rivatuner, to that and see if that fixes it.

 

Well, I'll try that. It's the n517. I haven't touched the clock on this card. Why pay for an overclocked card if it doens't work, this the third one btw.

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Well, I'll try that. It's the n517. I haven't touched the clock on this card. Why pay for an overclocked card if it doens't work, this the third one btw.

Yep, the n517 has a stock memory clock of 1100MHz. If the card that you have hasn't been user OCed yet, then it's definitely wrong.

 

Edit: Is my mind dying on me or did you just change your sig? Haha. I could have sworn it just said that the memory clock was 1200.

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Your sig shows you overclocked. Are you overclocking your proc right now? And if so, have you tried backign it down to see if it changes? Just a thought.

 

Curious if the change in cable helped at all. Your not trying to set an out of spec refresh rate on that LCD are you?

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No no, I am not overclocking the card in anyway, it is at 470/1100. I am using correct resolution 1280x1024 and 60 hertz refresh. I just tried backing down the factory overclock and that did nothing.

 

Did you mean processor? No this problem existed from the very first boot prior to any overclocking.

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