Weird Artifacts and Stretching on my GT 650M

This is my request for support for my new HP laptop. It came with a fully functional 650M card, on which I did some lightweight gaming (nothing that should have stressed the card much). A few days ago, however, games started to run on much lower fps than previously experienced and had very strange and annoying artifacts. I'm not positive how best to describe it, but it basically appears that the surfaces being rendered by the dedicated GPU are oddly stretched with many anomalies and incessant, annoying flickering. It should also be noted that this is accompanied by a noticeable decline in performance. Is it possible I have faulty hardware?

As far as the steps I have already taken, I've tried manually reinstalling the nvidia drivers, uninstalling them and allowing windows to reinstall, using an HP program to reinstall the drivers, and even rolling back the drivers to an older version. Today I went to the point of doing a complete, clean system installation, yet the problem persists. I called HP tech support and they said I have taken all possible steps, and they've arranged for me to send my computer back to them for servicing. I seek the aid of the internet to ensure that there really is no other possible explanation, and nothing else I can try. Note, however, that I'm unwilling to open up my laptop and void my warranty at this point.

I've used Fraps to capture a sample of the problem straight from the preview on the Nvidia control panel.
Nvidia 650M weird stretching - YouTube
Thanks in advance for any and all help.
~Mikegrann

 

It sounds like you got a faulty card. You did the right thing, send it back to hp their repair turn around is pretty fast. If the problem persists they will end up giving you a new laptop at a discount, or with an upgrade.

 

Have you checked the load temperatures?

 

that could be a faulty card but it could also be a dodgy graphics driver.

what driver have you got loaded and did this happen with previous driver.
do you or have you overclocked.
have you cleaned your vents and fans out lately.
and finally what temperatures are you getting with brousing and then with gaming.

temperature monitoring software free in my signature below.

edit: you need to try a manual safemode install of driver. walkthrough in sig below.

i know clevo dont void warranty if you open it up to clean it but im not sure about HP
would be a bit stupid if they dont let you clean your fans and vents out as build up with dust will happen to any laptop after a few months.

 

Tried everything you suggested, but the problem persists. I'm not too surprised about this, however, considering a clean reinstallation of the system probably would have fixed a driver issue anyway. Thanks for the suggestions, though.

For those interested, the GPU idled at about 33C and peaked at 60C for me after about a half hour of testing. It should be noted that this was under a 98% GPU load. These temperatures are well within the acceptable range.

For the time being, I guess I'll have to settle for RMA'ing it.

 

perfect temps so its defo not that.

the only other thing i can suggest is trying a modified inf driver from LaptopVideo2Go: NVIDIA & Laptop News

i have never used any modified driver and never will but many on here have especially with the newer graphics cards.

any advice for mike from a regular inf user.

 

If the modified driver doesn't fix it RMA'ing is indeed the only option, trying to do anything yourself might make it worse, better off going safe.