Hi I'm running two gtx 570's in sli. Case is a Silverstone Fortress with motherboard orientated so graphics cards hang down vertically. Motherboard is Asus P8P67 Pro which leaves over one inch gap between graphics cards. Both cards idle around 38 degrees. If I run both in sli the first gets to 75 degrees under 100% load and the second 65 degrees. If I turn off sli and run just the first card at 100% load it runs at 65 degrees. What I cannot understand is why the first cards heats up by an additional 10 degrees in sli when the gap to the second card and hence the airflow to the fans is the same. Can anyone suggest anything? I've used MSI Afterburner and GPU-Z to record identical temperatures. The cards are identical and give the same temperatures if swapped over. Thanks in advance Regards Mag Specs: Intel Core i5 2500k processor overclocked to 4.6Ghz Asus P8P67 Pro motherboard 8GB Corsair Vengeance LP 1600 Mhz memory 2 x Palit Sonic GTX 570 in sli Crucial C300 256GB SSD WD Velociraptor 300GB Enermax Revolution 85+ 1.25KW PSU Asus Xonar DX sound card Silverstone Fortress FT-02 case
