6800gs Psu

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kongwane

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hi!!

I just upgraded my grafix card from a geforce fx5500 to a geforce 6800gs 256mb.
The problem is that sometimes when i play games my PC will lock up and i have to restart, This happens more or somedays than others. I have successfully ruled out overherating as a problem.

While playing games the performance doesnt decrease or slow down, it just locks up at random intervals.

On my Grafix card box it says the minimun power requirement is 450w, im running a 300w psu. I want to confirm that the problem is with my PSU, so that a dont waste money on another one for nothing..


PLEEZ HELP
 
Problem is most likely PSU, 300W just won't cut it with newer graphics cards. Lock ups can be an idication of not enough juice on psu.
 
Thanks guys. I have one more problem

Sometimes when i play a movie or video i get these random red and blue dots flashing and moving on my screen. They also appear on the intro video for games such as NFSMW and chaos theory, the also appeaar when im watching a movie,. I've also rulled out the PSU as the problem becoase the use to appear when i had my fx5500.
 
arent they called "artifacts" and dont they represent a faulty card?
 
i think it highly unlikly that both my cards were faulty, everything else works perfectly its jus that on sum days i get these ''artifacts''
 
Yeah get yourself a good PSU, one that can actually put out the power that it advertised. I got a Thermaltake PurePower 420w and it works perfectly with a athlonX2 and 7900gt.

EDIT: google the PSU calculater, it will give you a indication of how much you need
 
Try reducing your refresh rate, it should fix the red and blue dots if you are using an LCD monitor.
 
Inertia said:
Try reducing your refresh rate, it should fix the red and blue dots if you are using an LCD monitor.
Click to expand...



Im using a LG 17'' CRT monitor, not an LCD. current refresh rate is 60 @ a res of 1024x1280
 
artifacts can be caused by overheating or faulty hardware... donno about artifacts and power...

edit.

Pop the gpu in a pc that has the power (Friends/work what ever) and see if it still does it other wise it maybe the gpu...

Could be mother board?

Artifacts are corruption in the video so yeah mother board/ram/gpu...

edit2

Tried another screen?
 
Last edited:
Artifacts can be caused by too little power, as they GPU isnt getting enough juice to run the core correctly, AFAIK some GPU's will switch to lower clocks if it detects there isnt enough power available, like you forgot to plug the external power source for instance
 
Bjorn said:
Artifacts can be caused by too little power, as they GPU isnt getting enough juice to run the core correctly, AFAIK some GPU's will switch to lower clocks if it detects there isnt enough power available, like you forgot to plug the external power source for instance
Click to expand...


no it will tell u on start up if u haven't plugged in the ext power.
 
kongwane said:
Im using a LG 17'' CRT monitor, not an LCD. current refresh rate is 60 @ a res of 1024x1280
Click to expand...

dont you get headaches? I couldnt look at a 60hz screen for more than 5 secs without feeling a headache coming on.

I think 75hz is like a gov. standard or something due to health and safety laws
 
werner said:
dont you get headaches? I couldnt look at a 60hz screen for more than 5 secs without feeling a headache coming on.

I think 75hz is like a gov. standard or something due to health and safety laws
Click to expand...
dont know bout any laws regarding refresh rates, but AFAIK 72hz is the minimum recommended, and thats the lowest I can set my screens on without getting headaches.
 
Just a note...

I've got a X1900XT, and it 'randomly hung' in games. Thought it was my PSU. However I just took the card out of one PCIE slot, and moved to another, and no problems ever again.....

(Another guy had the same problem, and this solution worked)

just my 2c ;)
 
Scooby_Doo said:
no it will tell u on start up if u haven't plugged in the ext power.
Click to expand...

LOL @ U! My 5900xt just downclocked itself and performed almost like a 5200...


Yeah, anything below 72MHz is ka ka!


kongwane, try out the slot suggestion if you have a SLI motherboard, don't really know what else it could be, maybe you have a funky codec though...
 
Check in the properties dialog of your cards driver for the temp of the GPU. I had the same effect with my 6600GT when playing games, heat. Somehow the new nVidia driver "over-clocks" my card by DEFAULT. By lowering this just a bit solved my problem.
 
I bort my monitor 6mnths ago, cant push ref. Rate over 60 @ 1024 by 1280. My 6800gs is an agp card,
 
kongwane said:
I bort my monitor 6mnths ago, cant push ref. Rate over 60 @ 1024 by 1280. My 6800gs is an agp card,
Click to expand...

I'm sorry, but that is hard to believe, for a recent LG monitor. Even the cheapies must be able to easily handle 1024x768x32-bit at 75Hz. If yours doesn't provide this, make sure that you're either using the actual LG monitor driver, or use the "Plug and Play" monitor driver

60Hz is a major recipe for eye-strain.
 
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