Geforce 6800 Overclock Issues

[sixarm]

Hello there.

I recently purchased an Asus V9999 which runs the 6800 chipset. I have managed to unlock the extra 4 pipelines and 1 vertex shader successfully. The next stage I wanted to complete was overclocking the card. I've download coolbits and riva tuner and either can be used to alter the core and memory frequencies. After upping my frequencies to 385 core & 820 on the memory, I rebooted & checked the monitoring tool within riva tuner. The memory frequency had changed but the core remained at 324Mhz, which is what it ran at out of the box.

Any ideas why this is happening?

I thought it may just be an error, but on running 3dmark01, my score only increased by 4! So, it must definitely still be running at the stock core frequency.

Thanks for looking.

 

[sixarm]

I certainly did.

 

[sixarm]

Cheers, both. I'll give it a go later this evening.

I was messing around with it yesterday and de-selected the option in riva tuner to allow different 2d & 3d clock frequencies. This seemed to actually allow me to change the core frequency when I couldn't before. I managed to get it run stable at 380 & 8xx something, can't remember the exact figure for the memory. I tried 400 & 900, but got artifacts. Anyway, I thought i'd run 3dmark01 to see what effect the OC was having on my scores. To my amazement it came back at over 2000 lower than my non-overclocked score! What's going on there?

I got worried, so uninstalled Riva Tuner & the Nvidia drivers. Have reinstalled the drivers and riva tuner, and unlocked the pipelines again. Ran 3dmark01 and the score is around 200 less than previously.

Why would an overclock give me significantly worse 3dmark results? Is it cos of the "allow seperate 2d & 3d values" option?

 

[sixarm]

OK, that makes sense. How do I go about this?

 

[sixarm]

damn, i took my floppy drive out
is that definitely the only way you can do it?