In box one, the 3rd card at full tilt is at 80, all the others are much cooler.  This is with all 4 cards at 1010mhz and vga fans at 85%.
In box two, my top card runs around 84, third card at 82.  This is with all cards clocked at 975.
Same exact hardware in both boxes. 
I know those temps aren't (too) dangerous, but I would like to push the 2nd box to the same levels as the first.

<RAGE>
WHY YOU NO CONSISTENT?!
</RAGE>

Maybe differences in manufacturing runs?

Thanks for the link!

Ive got 4 extra 5830s that I am assuming are from the same batch (bought at same time as cards in 2nd rig),
I might re-paste those to cut down on downtime, and see if it makes a difference.

Which version of linuxcoin are you guys running? 0.2.1b?

Boo not being able to post in the Hardware section.

Just wondering if anyone has tried to re-thermal paste their GPUs with arctic silver.
I am going to give it a shot, and I will post results.  I am running 2 boxes, each with 4 OC'd 5830s. 
I have noticed that some of the cards (stock) run much hotter than others regardless of position on mobo.
The paste is an attempt to make everything more consistent and hopefully cooler.

thoughts/comments?

Thanks!