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X850 PCI-E max potential

post #1 of 6
Thread Starter 
Hi

I have an X850 (used to be pro vivo 256) flashed bios to xt platinum edition. Unfortunately it seems that the pipes on my card are permanently locked and I will always be stuck with 12 (unless someone knows how to manually unlock the pipes as could be done in the odl days). However the card is running absolutely fine peaking at 50ish celsius (I presume ati tools reports in celsius????) under full load. I have the arctic cooling kit for it installed so are these temps fahrenheit or celsius?

Anyway, whilst trying to determine if my card could run at xtpe cards before flashing I made a schoolboy error and entered the speeds the wrong way around!!! Instead of gpu at 540 and mem at 590 I tested at 590 gpu and 540 mem!! BUT I got no artifacts!!!

What then is the potential for getting the fastest stablest performance out of this card? I've been oc'ing pc for years but this is the first time I've entered into doing the card too!

Thanks in adavnce for your replies.
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post #2 of 6
Quote:
Originally Posted by Haze
Hi

I have an X850 (used to be pro vivo 256) flashed bios to xt platinum edition. Unfortunately it seems that the pipes on my card are permanently locked and I will always be stuck with 12 (unless someone knows how to manually unlock the pipes as could be done in the odl days). However the card is running absolutely fine peaking at 50ish celsius (I presume ati tools reports in celsius????) under full load. I have the arctic cooling kit for it installed so are these temps fahrenheit or celsius?

Anyway, whilst trying to determine if my card could run at xtpe cards before flashing I made a schoolboy error and entered the speeds the wrong way around!!! Instead of gpu at 540 and mem at 590 I tested at 590 gpu and 540 mem!! BUT I got no artifacts!!!

What then is the potential for getting the fastest stablest performance out of this card? I've been oc'ing pc for years but this is the first time I've entered into doing the card too!

Thanks in adavnce for your replies.
Hi,

Your card is stuck at 12 pixel pipelines, there is no possible way round to unlock. The x850's temperature is good, keep your temps below 70c load and you shall be fine, a graphics card can withstand alot more heat then a CPU. ATI tool is reporting the temperature in Degrees celsius. Have you used ATI tool and set, ''Find max core'' and let it run until it settles down abit, then switched to ''Find max memory''?
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post #3 of 6
Thread Starter 
I did before I flashed bios but dont remember the results lol, I'll go away and do that now.

When it finds the max mem and gpu etc are they the max stable speeds?
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post #4 of 6
Generally speaking, yes. ATI tool puts about as much stress on your card as a game would, so it is generally pretty game stable. However, my max core is not stable in benchmarks.
post #5 of 6
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i ran max gpu and it crashed around 566 so i rebooted and did max mem, when it got to around 602 the 3d display started to show a single glowing pixel that would occasionally blink. I aborted after a couple of minutes of seeing it and set mem to 600 (gpu at default 540) then I scanned for artifacts. Temps maxed at 59 and after 7 mins no artifacts reported but the pixel popped up again so concerned i aborted and thought i'd ask what it is before continuing.
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post #6 of 6
Quote:
Originally Posted by Haze
i ran max gpu and it crashed around 566 so i rebooted and did max mem, when it got to around 602 the 3d display started to show a single glowing pixel that would occasionally blink. I aborted after a couple of minutes of seeing it and set mem to 600 (gpu at default 540) then I scanned for artifacts. Temps maxed at 59 and after 7 mins no artifacts reported but the pixel popped up again so concerned i aborted and thought i'd ask what it is before continuing.
That's an artifact and means the clocks are too high. If you see this again, just lower the clock speed manually, or ATiTool will if you're finding the Max Core/Mem speeds. Leave the test for as long as possible to check for stability. 30-60mins is ideal.
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