Sqaure-like artifacts on stock clock speeds? Asus 7970 Matrix Plat.

[ManSlayer]

Been having some problems with my newly purchased 7970 matrix. I keep getting some square-like artifacts on stock clock speeds and was wondering if anyone has any suggestions before I end up RMA'ing it. Below are a few screen shots I took showing what i mean by square-like artifacts.





As you can see, they can get quite annoying and im not sure it thats actually my GPU thats causing that or somthing else.
I've tried using the 12.10 drivers as well as the 12.11 drivers but the artifacts still appear.

System Specs:
CPU: i5-3570k (@3.4GHz)
Mobo: MSI Z77A-GD65
GPU: Asus 7970 Matrix Platinum
RAM: Corsair Vengeance 8GB (2x4GB)
SSD: SanDisk 240GB
PSU: Kingwin 1000Watt

Any help would be appreciated!

Thanks

[MoosDiagramm]

I'm in the same boat as UltimateRev. I bought a R9 280X DirectCU II TOP last week and get annoying artifacts all the time.

Apparently Asus has locked the memory voltage on the 280X to make it impossible for buyers to fix the problem. Is this really the end of the story? Is there no workaround to reduce the memory voltage?

[DoriKin]

I'm having the same issues. Hope there's a fix soon. I noticed the artifacts and checked GPU tweak and saw the memory was at 99%. I dont know a great deal about PC's. But I wonder if its a memory read/write issue.

[Lacan]

After beating myself up trying to resolve this, RMA the card to only have the new replacement do the same artifacting. I tried downclocking to suggested settings on these forums (6200@1.52v 6400@1.54v) which worked for a time but typically led to crashes instead of artifacts. After doing some more indepth research on the card's memory, most Asus 7970 Matrix including mine use Hynix memory H5GQ2H24AFR R0C. If you go to their site to research the chip: http://www.hynix.com/products/graphics/view.jsp?info.ramKind=26&info.serialNo=H5GQ1H24AFR&posMap=gra... You'll notice near the bottom of the page that these memory chips are rated at 6000@1.5v. So it would seem Asus overclock these 10% from 6000 to 6600 which is resulting in artifacts in many cards. Since now it would seem to be a lottery if the chips OC beyond their 6000(1500MHz) spec. With this new info in hand, I set my memory at 6000@1.5v which these are rated for. Immediately artifacts have stopped, has been perfectly stable. While I'm not entirely fond of this, it is a temporary fix for at least my card. It has been stable for months. I have experimented with various clocks above the manufacturer's 6000 while maintaining 1.5v but typically results in artifacts. So take this for what it's worth, may stop you from tossing the card out the window.

TL: DR: If your matrix has Hynix H5GQ2H24AFR R0C (which most do) it's rated 6000@1.5v try turning down your memory clock.

[B0UJI]

Yeah i ended up getting mine refunded but that seems to be the issue right there. Really they just clocked it too high and it just can't handle it!