m17 crossfire one card is always 10c hotter

try as i might one card is 10c hotter than the other. ive reapplied ac5 on the cards, ive put em back together so precise and even used a card to spread ac5 ( instead of my finger) but still just had a game and one sits at 81c other 71 ish give or take a degree.

any ideas what ive done or does one card run hotter by default.

 

Well the 4870s(4850s) in my W90 were the same exact way no matter what i did IE new paste etc one always 10degrees hotter . The 3870s on the other hand are the exact same temps so something must be different about the design or what there doing .

 

cheers quad bud i was sitting here thinking i gona get screwdriver out to it again.

 

I believe the master card varies slightly from the slave card; in that the slave card appears to be a processing unit, but lacks some of the output capability; somewhere in the pcb and design, so it may have some logic/parts cut which reduce the heat output from the card.
This is only a theory from having seen and played with the cards however; you have to remember these 4850m's are custom design, and haven't been built by ATI (lack of red PCB is a fairly big give away).

The other obvious possibility is that again its the slave card running lower temperature, simply because it's workload is slightly lower than the master gpu, which dependant on crossfire utilisation and drivers, would also be possible

Dont worry about it much, one of my cards was a few degrees hotter too

 

How did you manage to get the 4850s KCUK??

 

Not got a clue seeing as I cant even get some on RMA, guess he's jammy haha!

 

Hes a smooth talker .

 

One of my card to is runing a little lower then the other but only about 5c

i have also noticed using GPU-Z that the first card always run at full clock unless you put in power save while on batterie
and the second one only run at 250 and 400 unless you start heavy gaming then it clock back to full

 

quadzilla is correct

 

I can't even score a pair !!!