First things first: System details are accurate in my System Specs to the left ◄------------------------------------------------------┘ Only temporary corrections are CPU @ 3.6GHz (1.275v), HT & NB @ 2GHz, voltages defaulted. One of the main things I've noticed is the card's loading. The primary generally is 97-99%, but almost all the time the 'slave' card is 8-12% lower. Is that typical operation, or should I be tweaking something to even the load out more? The only reason I'm concerned is that the primary card gets much hotter, in the order of 20C hotter... However I must confess I have changed the fan out on the slave card, but before I did that it was still 10-12C cooler than the primary. There is also the more pressing concern of the cards only using 60-70% each in DiRT 2. In the loading screen it is actually loading both cards around 97-99%, but in the menu or while racing is when it is so low. I have a feeling that because of it, I should actually be getting higher frame rate than I am (mid 50s to mid 60s, sometimes as low as 30s and as high as 80s), and that sucks since I'm not even running the graphics on high Second thing is what I replied with in another thread, in regards to the CF bridge... Here's a C&P: Know what I just found out earlier... NO bridge is required, at least on my 5770s >_> The computer was in sleep mode and I was just seeing if this fan duct I made would fit between the cards, which meant removing the bridge. Bumped the mouse after I was done and the PC turned on, which I cringed and thought it would crash... It didn't So I popped open FurMark and it ran fine and utilized both GPUs... Figured "has to be a performance hit though" and ran the benchmark quick. Put it back to sleep and installed the bridge again, re-ran FurMark... same performance So is perhaps that why the loading is 10% lower on the slave, and perhaps why my performance is lower than what I'd expect? I've not forced HybridCF with ATi Tray Tools either, and this is a fresh install of Windows 7 (x64, but the performance & loading was the same with x86) as well. Catalyst is version 10.6, and I'm running the latest Profiles as well... Lastly, and this is not important really, but I'm curious what others have experienced: Using CCC's overclock auto tuning feature, it finds a max core clock of 980-1000MHz on 1.2v (default). Yet that ends up being no where near stable, with driver crashing/system freezing occurring anywhere from a matter of seconds to instantly upon FurMark loading. With gaming it seems like, with minimal testing so far, that 890MHz is the highest stable clock on the core Same story for a lot of you? Any other details, just ask and I'll do my best to provide them Thanks!