noob question about overclocking SLI

[FatboyHK]

When using ATItool I can only change the frequency of the primary card..... how can I overclock the secondary card?? I know, I must be a n00b question

 

[bail_w]

if you are using SLI, use Riviatuner to overclock it.

 

[madmat]

It's your bios. I had that issue with any OCi'ng tools with my A8N32SLI running 7950GT's in SLI until I updated my bios to thew newest regular bios version. Since they haven't released one for compatibility with the G80's yet you'll most likely have to wait until they do.

 

[WintersFury]

Just to make sure, you did go into the setup area and try and switch the cards with the pull down there to do so?

 

[FatboyHK]

yes there is only one card in the pull down box....

I just googled a bit and someone mentioned that the secondary card will automatically match the frequency of the primary card... is it true?

 

[madmat]

With a bios update to your board, yes. I was running the bios from 04-06 and it had no support for the 79XX series. My SLI'd 7950's did the same thing no matter what I tried to use to OC them. A couple of weeks ago I flashed my bios to one from 12/06 (that stated in the release note "adds support for 7900 series") and now they OC just fine. Contact ASUS support and ask them or better yet do what I did and do a search in their support forum.

 

[Waterboy]

yes there is only one card in the pull down box....

I just googled a bit and someone mentioned that the secondary card will automatically match the frequency of the primary card... is it true?

I had the same issue with the eVGA 680i SL board. Only one board shows up in ATITool and RivaTuner shows two, but only allow overclocking of just one. I end up doing the overclock via the GTX BIOS, as suggested by one of the user on this forum.

 

[FatboyHK]

I heard that If I want to modify the BIOS of my 8800GTX, I can only do it on the primary PCIE slot.... is it true? It will be troublesome as that mean I need to redo my watercooling loop,,,,