Here is what I believe and what we need to test. The latest build of Everest shows the GPU VRM amperage draw (last reading) for the HD4870s. I need some others to run Furmark and watch the amperage draw. I dont think it's a temperature issue anymore, nothing is really hitting 125C / 250F as there is nothing on the card that hot. However, I see the GPU VRM amperage draw hit 72amps before I shutdown and the D601 light is a critical power trip on the 4870.

So I need you guys to run Furmark with latest Everest (build 1455) and see if your amperage draw is maxing your PSU rails. I have a TT1000 with quad rails. Rail 3 and 4 are dedicated to the PCI-e connectors. Each rail is 36a. My PC is going to a black screen when the HD4870 hit 72a draw, the maximum amperage I have available.


Links for latest Everest are here -
http://www.9down.com/EVEREST-Ultimat...55-Beta-29037/
http://middown.com/news_3945_Everest...1455-Beta.html

GPU VRM is the bottom reading in Everest -