Overclocking 8700M GT SLI?

if your cards die from overlcocking it's not covered.

if I were to overclock i would dump the bios with nibitor on each card then change the clocks and flash back.

If they can prove that he cards died from overclocking then it would not be covered.
Use drivers 167.55 from dell or whatever drivers you want and RivaTuner 2.06 and if you change clock settings it will change for both. Use GPU-Z to verify. I was able to run my 8700SLI at 750 gpu, 1500 shader and 1025 memory. Max temps were around 82-84.

When I overclock I do it by the bios. that's all.

To each his own.....

You're not going to fry the cards from overclocking. Heat is what kills GPU's. Dell doesn't care enough to investigate your fried card, I promise.

ump the bios with nibitor on each card then change the clocks and flash back with nvflash usising a bootable cd or mem stick.

there is howtos for this all over the forum

That's a lot of needless work. The cards are unlocked just use software, its easy, fast and much safer then messing with BIOS files and flashing, especially if you've never done it before. McFly had it right.

it's not needless work. he asked....

some drivers don't let you overclock.

and some people that overclock do it 1 time permanently . they experiment to find out what clocks work for them. then flash permanently with the bios.

dun deal.

then the clocks don't need to be fuxed with on a daily weekly basis every time you change drivers you have to frack around again with "needless" shit.

that's needless. when you do it via bios you don't have to worry about drivers or keeping it there with registry bs.

it's permanent. plus with a custom mem key. I can put it in hit f12 boot to dos. type nvflash "romname' and done.

from the time it takes to reboot the machine. your done.

plus reading is good. and you might just learn something about how your card works. and then you don't have to rely on software to do things you can do yourself.

I can keep my overclock setting by clicking a little radio to auto set my settings when windows starts and dont have to worry about dumping and flashing a bios which if done incorrectly can brick you cards.

Exactly. This is biggest problem with flashing. If you don't know what you're doing, or you do and power fails/corrupt flash, dead video card. I just have my Rivatuner overclock saved and even if I change drivers it loads up all the same.

Ya you can get a driver that won't overclock, I haven't had one in a while but it is possible. I'd much rather rollback drivers then call Dell if something goes wrong.

I'd imagine that you are overclocking both cards via software if you are running SLI. It might not be stated explicitly in the program, but that would be the only thing that made sense to me. You can use NTune to overclock your card as well and it may show you the information you want to see (each individual card).

Anyway, I prefer flashing the bios too but I wouldn't really recommend it for novice users. And its not all that dangerous; despite me changing random bytes in the rom and still flashing it to the card, I still had a perfectly functional card. In fact, I've never been able to break a card although I stopped trying (not bored anymore). As long as you use the rom dumped from your own card, then its pretty hard to cause permanent damage.

Pros
Always works as long as NvFlash supports your card (you don't NEED NiBiTor but even advanced users might be jittery not using it)
Operating System Independent (provided nvidia makes drivers for your OS)
No dependence on software
Self-Contained
Permanently remove Dell/Nvidia underclock
"Unlock" card (with one of two roms :/ )
May be your only option

Cons
Minimal Risk
Reduce EEPROM life cycle (but EEPROM is rated for 100,000+ uses)
Steeper learning curve

Short answer is, that although it may be unnecessary here, flashing provides many benefits that you cannot get in software.
Without these boot cd's on the net, I doubt we'd have any "bad flashes". We'd have far less users overclocking but meh, I guess they'd learn the stuff if they wanted to overclock.

Well a flash can go wrong anytime. Though I agree bios flashing is the way to go if you don´t want to worry about changing clocks all the time, but I would never put my 8800m GTX SLI to risk by flashing it when they are unlocked and every driver I have tried overclocks them. Settings are saved in Ntune when I change a driver so there is no hassle at all doing it by software, the risk is of course less than flashing it.

But yes many of the bad flashes were the boot CD´s faults and people who didn´t know how to bios flash in the first place.

People are a little overprotective about flashing. Its not the high risk operation that you think it is. Every board has to be flashed/programmed initially to put the data onto the empty EEPROM. As long as you use a rom that you dumped yourself and use only the standard nvflash syntax (i.e. nvflash [romname].rom) the risk is pretty much non-existant.

Yeah I overclocked when I had mine 8700GT´s in Rivatuner, it overclocks both cards if you are running in SLI.