SLI OC and Temps

I recently SLI'd my 9800 GTX. Using RivaTuner 2.09, I have OC'd the cards to 800/2000/2400 and put the fans to 70%. My questions are: does RivaTuner apply the settings to both cards? and is there any way to test for stability? I have been using ATI tool and that gives a ton of artifacts and then no artifacts every other time. Ntune is out of the question (BSOD every time). I know in Company of Heroes Gold I am not getting smooth gameplay or stability in the campaigns no matter what I clock the cards to. Seems to work fine everywhere else.

Edit: edited the OC to 800/2000/2400 (Core/SP/RAM) and I should mention that both my cards were EVGA factory OC'd. Sorry for sounding like I was trying to fry my computer, I was in a real hurry this morning before work.

l1qu1d the 9800GTX's 0.8ns memory is rated at 2.4Ghz by default, i seen many of them goto 2.5 or even 2.6ghz.

is the 1200 the stream processor or the memory at single rate?

the highest i have seen is 800/2000/2600(Core/SP/RAM)
but i see most stuck on 780/1950/2500(Core/SP/RAM)

in his spec i dont get which is which.800/1200/2400

so is sp running at slow ass 1200?or screaming 2400?

I don't think the core and memory clocks are unreasonable. I have them clocked the same on my 9800GTX and it runs stable 24/7 with 70% fan speed (it runs as cool as my CPU) and no artifacts. Have never tried shaders that high as I kept the core and shaders linked when I OC'd using Rivatuner.

2400 SP??oh my!i never seen that high.oh well.

because the GX2 use the same memory as the 8800GTS 512. so really Nvidia have differentiate 8800GTS 512 to the 9800GTX in terms of memory and bandwidth.

well thats the 55nm GTX 280!lol i wish they do really put GDDR5 in them. so the real battle will start out with the 4870X2. of because hope it doesnt melt itself first. i seen review of the HD4780 loaded at 93C with working Auto fan controll.

nope!link??

its bate that video. its obvious that ther person heat the pan up beforehand.

if a SLI GX2 with the card housing remove then it might be possible. you wanna make your own video to testify?

No dice lol 1 millions dollars

Sorry, I should have specified that both my cards are EVGA pre-overclocked so I don't seem like an idiot pushing my core speeds up by 130 lol. No, one is the SSC and the other is the KO, and I am thinking I will only OC to around 780 or so to be safe. Was in a big hurry this morning. I am currently at 780/1970/2430.

Ntune will not work for me and are there any alternatives to Cinebench or 3DMark? Can I get 3DMark free?

Hmmm, are you sure about that? It seems in reviews of pre-OC'd cards they are always able to OC it further to speeds that I haven't seen any review site OC a normal card to. I'm not trying to disregard what you said, and I think that what you said makes plenty of logical sense... Can I get a second opinion?

Anyway, current speeds are 780/1981/1215 (2430) and seem stable at 70% fan speed in my Antec 900. I got ATI Tool working properly (turns out FRAPS was in the background and that was messing it up). Temps according to ATI Tool are around 60 right after I quit a game. Does anyone think this is still pushing the cards too hard? Should I stress test with a different program as well?