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Old 07-30-09, 09:22 AM   #5
pakotlar
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Default Re: Argh! Dissapointed with GTX275 clocking...

Quote:
Originally Posted by K@in View Post
Hey, I just picked up a BFG GTX275 not too long ago and frankly, it's been kinda dissapointing. My highest stable crysis OC is 675/1476/1188, anything higher crysis freezes. I'm using a fresh install of vista x64 and my system is a Q6600 at 3ghz and 1.32v, 4gb of ram, a Maximus Formula and a OCZ 600w Sxs PSU. I'm really at a loss about what to do. My temps are fine (Mid 70s Furmark Burn) and my power supply is enough. I don't get artifacts or anything, just games lock up without warning past those frequencies. For some odd reason Furmark and Vantage are both stable at 702/1512/1242, but as soon as try crysis or even CS on a full server (20 slots) it locks up and flushes the driver. I remember my Asus 6800u back in the AGP days had a similar issue, and once I flashed it to a XFX bios it helped alleviate the OC barrier. Would It be worth doing to the GTX275?

The only thing I can think of is the increased CPU/memory load during games, but my system is 24 hour prime stable and the PSU should be enough. Besides, doesn't vantage stress the CPU in the first test with all the physx enabled water and ti**ies?
I understand your dissapointment, because that is a somewhat low clock. My guess is that if you unlink your core and shader clocks, you will be able to go higher on the core. You may also try bumping up the memory higher. So try for something ilke 702/1476/1242, and see how stable that is. I also very much doubt that CS will crash your card if you are Furmark stable. Make sure you run Furmark 1.6 and run it for an hour or so in xtreme stability mode, with post processing effects on and msaa on. If that is stable everything else probably will be. Its never a definite thing, and crysis is one of those oddballs that can crash systems that are otherwise stable.

My Core 216 I could never get over 650/1350/1250 stable in crysis. Don't feel too bad.

Btw, the best Crysis test to run is, after having run the game for 10-15 minutes, stand in a dense scene (easy to find), and throw a bunch of smoke around you. If your card can tolerate that then you are good to go (as long as you are also Furmark stable). OC'ing can be very easy or difficult, just depends on the card, and the stability of your system.

Check this out: http://www.anandtech.com/video/showdoc.aspx?i=3575

Youll get some nice benefits even without a super high shader oc.
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