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Precision M70 GeForce 7800GTX Upgrade -> failed?

post #1 of 3
Thread Starter 
A feew weeks ago I decided to spent my one year old Precision M70 the GeForce7800GTX mod to be ready for the upcomming games. Ordered a card, swapped it following the instructions from laptoplogic.org, appled AS5 and a thin copper shim. At first everything seemed normal. Every now and then I saw random coloured pixels in the BIOS-Screen of my Laptop, but after booting into windows the screen went normal, so I never gave it a thought. Games ran normal, the GPU was stable at 80°C with 280MHz and 900MHz RAM clock (not fast, but enough for me).
Yesterday we had an intense gaming-session. The Laptop began to produce grapical errors: Polygons were not where they were supposed to be, pixels flickered, random lines crossed the screen and so on. Checked the temperature - everything fine: 80°C@GPU, 60°C@CPU. After rebooting they were there again: Those random colored pixels in the bootscreen. But this time there were much more, and it became more and more every second. Windows crashed right after the bootscreen, causing a reset of the machine. After an hour or so I managed to get into windows and run ATI-Tool. The result was obvious: Countless errors after a few seconds, even with lowest clock rates.... R.I.P
Is my card really fried or did I oversee something important? What do you guys think? Any chance to revive my GF7800GTX?
post #2 of 3
Sounds like the card was going bad in the first place. You sure the memory wasn't overheating? You're only reading your GPU core temp anyways... so the memory might've been effected
post #3 of 3
That card is either faulty or is somehow grounding out due to an incorrect installation. Artifacting is not a normal behavior of the mod and it certainly should not be happening in the bios where it would only be running at 2d (1.1) volts.

I would suggest first completely removing the card from the system, cleaning it, and re-installing. Oh, and make sure that the GPU cooling fan gets plugged back in, because it could cause something like this. If it still artifacts, contact whoever you purchased it from and see about a replacement. Dell doesn't warrant the card unless it was an upgrade for a M170 with an existing warranty.
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