Originally Posted by Bee Dee 3 Dee
wats it take to get close to 80c?
can u post ur specs in ur sig?
i'm sure ur aware that the top card gets hotter. so, is the card with 83.7% ASIC on top? or is the card with 76.3% on the top?
i have a theory that the card with a lower ASIC, should be on top.
by chance, when i had my EVGA 760 4gb FTW-SLI, the card with a lower ASIC was on top. and by chance, when i got my Gigabyte i also placed the card with a lower ASIC on top.
but, the problem i had with the EVGA 760 4gb-SLI, was that the top card got stinking HOT HOT HOT!!! even if i played satirical solitaire for two minuets.
As a result, the top card's fan always blew faster. (i use a curved fan profile, rather that running both 100%.) and the lower card got cooler but still sent heat up to the top card. it SUKED even just @Stock. let alone, when i tried to OC. top card was always more than 15c hotter.
So i went with the Gigabyte 4gb-SLI. because on this thread, it has been an awesome OCer.
and @stock i only reach low sixties.
and with the card with a lower ASIC on top, both cards compliment each other perfectly!
see, with a curved fan profile (rather that running both 100%) and the simple fact that the lower card runs 52Mhz faster @stock (as a result of having a higher ASIC), the lower card stays around 1c warmer when starting out. And as a result the fans are always running between just as fast as the top card's fans run or a fraction faster. And all six combined fans run in unison.
(eventually the top card gets 1,2 or 3c warmer than the lower card.)
The entire PC benefits! And with an HAF-X case everything is so much cooler now with these Gigabyte cards! for example my south bridge is 15c to17c cooler! (the rear fan on the top card is better than having a dedicated South Bridge Fan !
) My CPU is 10c cooler!
and i just noticed today something crazy! guess wat?
Both EVGA AND MSI are going with three fan setups on their latest 770 and 780!
i'm NOT surprised!
i almost forgot. if u have a lower PCI-E slot that u can use; deffinately use it. because last year i tested the difference between 16x by 16x versus 8x by 8x PCI-E. And the difference is less than 1%!
but the benefits from lower temps, are massive!
so if u can take advantage of having ur two cards an extra one, two or three slots further apart, DO IT!
u'll never see a difference in performance. but u will see much much better temps.
and be sure to focus on OCing ur card's Memory because ur benchmarks will be much more effected/ improved by OCing the vRAM than the GPU.
got to go.