What is wrong with my display/GPU?

OK...I have this slight reoccurring issue with my Asus W90...

The laptop has dual 4870's in Crossfire...18.4" 1080p screen.

Well, anyways, for the past month or so some weird things have been happening...and I cant quite diagnose the problem.

First incident happened at the first of the month...Im sitting there browsing the net and my whole screen suddenly flashes to a solid green screen with darker green vertical bars running the length of the screen...reboot...problem went away. Now for the past few weeks, more so recently, the screen will just go to a solid white or black color and wont recover...resulting in me having to reboot.

Now, immediately Im thinking its a video card issue, but they arent over heating at all and they havent crashed once when stress testing (3DMark Vantage and multiple games)...does this mean my issue could be caused by something else? Or can a video card crash or be messed up for no apparent reason?

Ive installed both the 10.5 and 10.6 drivers on a couple of new Windows 7 installations (64-bit) on both my HDD and my SSD to no avail...

Anyone have any recommendations or should I just RMA? Anyway I can have Asus replace the video cards since Im almost certain thats the problem...I ask because I feel that they might not replace the GPU's if they cant recreate the problem...and I have doubts that they will be able too given the fact that its not something that happens due to heat or stressing of the GPU's.

Anyway, if anyone can point me in the right direction Id appreciate it! Thanks!

 

Man the description you gave sounds like a total hardware failure. I would go straight to RMA.

 

Yeah, thats what Im thinking...but why has it never done it while gaming? Does it have to be something that Asus can recreate in able for them to replace the GPUs?

 

Anyone else have anything to add? Any one here from Asus support? I just dont want to have to wait for 3 months for my laptop to be repaired...

 

If they can't recreate it, just keep sending it in...

 

Im thinking Ill just tell them to replace the cards...tell them Ive done my own diagnostics on the cards and have found the faulty...maybe I can just get them replaced...anyone here know if theres any way that I can verify that the cards have in fact been changed once Asus has said they have been?

 

I know when my desktop GPU was failing it started with that stuff, and eventually moved to failure in games. Then one day it just failed and stopped working completely. I'd say get it to Asus when it's still under warranty, and explain to them that it only happens randomly, and just lie and say it happens while gaming and such. If you get it back and it still is doing it, send it back, and keep sending it back till they fix it. Otherwise you'll be out a still pretty awesome laptop.

 

Put a very small discrete black dot using a marker on the card itself.

 

Yeah, I had already planned on doing that lol...if I hadnt though very good tip! Thanks DCx