3870x2 Questions

samsonite789 said:

Hello everyone. I have three questions for the more-knowledgeable-than-I:

1) I have a VisionTek 3870x2 O.C. Edition. It works outstanding except for one thing: when I have Catalyst A.I. turned on (which is required to use both GPUs, apparently), I see strange, persistent graphical glitches in certain games (Oblivion, any game using the Source engine). I'd just turn it off but those games work 50% better with it on since it's using both GPUs. Has anyone encountered this problem or know how to fix it? How do I keep the performance but get rid of the irritating graphics glitch? Everything is up-to-date (8.7 drivers), I'm running Vista 64-bit, and the card is at 45C idle and 55-60C under full load.

2) I've tried using CCC to Overclock the card even further. It lets you go to 870 core clock and 1000 memory clock. I cranked them all the way up to the settings and found that it didn't increase FPS at all and didn't even really raise the temps. Did it actually overclock, or am I missing something? Do I need to overclock it more to actually see a performance increase?

3) I'm sure this has been answered before, but would a 3870x2 Crossfire with a 4870x2?

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azu said:

1. I don't know whats going on. so not much help i can give here. Do you have a 32bit copy of vista that you can verify it with?

2. Overclocking doesn't do much if your system is bottlenecked. maybe your cpu can't crank out any more calcs. Try running an insane resolution and then see if itll increase fps.

3. not to my knowledge.

list some specs

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samsonite789 said:

1) Unfortunately, I don't. I'm hoping the 8.8 drivers will fix it.

2) Bottlenecked, you say? My resolution is at max for my monitor (1680x1050). What do you mean exactly by calcs?

3) Oh well...

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samsonite789 said:

Hello everyone. I have three questions for the more-knowledgeable-than-I:

1) I have a VisionTek 3870x2 O.C. Edition. It works outstanding except for one thing: when I have Catalyst A.I. turned on (which is required to use both GPUs, apparently), I see strange, persistent graphical glitches in certain games (Oblivion, any game using the Source engine). I'd just turn it off but those games work 50% better with it on since it's using both GPUs. Has anyone encountered this problem or know how to fix it? How do I keep the performance but get rid of the irritating graphics glitch? Everything is up-to-date (8.7 drivers), I'm running Vista 64-bit, and the card is at 45C idle and 55-60C under full load.

2) I've tried using CCC to Overclock the card even further. It lets you go to 870 core clock and 1000 memory clock. I cranked them all the way up to the settings and found that it didn't increase FPS at all and didn't even really raise the temps. Did it actually overclock, or am I missing something? Do I need to overclock it more to actually see a performance increase?

3) I'm sure this has been answered before, but would a 3870x2 Crossfire with a 4870x2?

Click to expand...

glock19owner said:

AMD GPU Tool is the best OCing software out right now...

Have you tried disabling OD and running those games?

Also

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glock19owner said:

anyway you can post a screen shot of the glitches you are getting?

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