Problems with GTX 460 lines on screen

[gav24088]

Hello,
I recently installed a GTX460 graphics card along with a 520W PSU. It worked fine for about an hour, but on a restart the boot-up screens and windows screens are almost unreadable, with flickering lines, random keyboard symbols and colours flashing all over the screen. The Asus "Smart Doctor" gives a message "cannot retrieve graphics card information" or something similar.
I have uninstalled and reinstalled drivers, removed and replaced the card, etc, but still the same. Is the card simply defective???
any help would be appreciated guys!

 

[tdw63]

Having problem with GTX 460 768mb myself, after installing drivers and re-boot the system will not restart and the couple of times I did get it running it was very unstable and would go to a green screen and hang. I'm hoping it's just a driver issue and new software will resolve the problem.

 

[gav24088]

I've seen some websites that criticize the "Asus Smartdoctor" program. I tried removing that but it made no difference at all. The card has since been sent back to the retailer under warranty.

 

[wa1]

After you get your card back, make sure you install it with the latest version of driver...

 

[Eliasvan]

Sorry, but downloading the latest drivers don't work either: I recently bought a NVIDIA GTX470 ("Point of View") and I'm getting the same weirdness gav24088 gets. I downloaded both the display drivers recommended by my linux distribution (Fedora 12) as the latest from nvidia. After that, I tried other linux distro's, older and newer ones (Knoppix 5, 6, Fedora 13), still no difference...
I've opened a thread here about my problem: http://www.tomshardware.co.uk/forum/295807-15-weird-nvidia-gtx470-randomly-crashes-system-black-screen-corruption
There's also someone else suffering of the ~same problem: http://www.tomshardware.co.uk/forum/295976-15-problem-under-powered

The suspicious thing is that I've got also a ASUS mobo (P7P55D-E)... But since I use Linux, I didn't approach the "Asus Smartdoctor", so don't expect the problem lays there.

 

[Eliasvan]

VIDEO:
Just for more information of my problem:
this is the link to the video of the screen corruption part of the problem:
http://www.youtube.com/watch?v=ETsIVE5ykO4

Does this video matches (parts of) your problem? I'll be glad to know!

 

[Eliasvan]

Ok, I sent my card back for RMA and the manufacturer confirmed the card was broken (probably RAM).
Now, I bought a MSI PCI-e GeForce GTX470 Twin Frozr II 1.28GB, let's hope it will do better...