Hey guys, got my X1900XT on monday and put it under watercooling, idle 32C, load 38C. So far my best clocks are 766mhz/845mhz with the voltages at 1.575/2.15/2.15/1.5. My best score so far is
13146 in 3dmark05.
Id just like to again bring up the issue of the disparity in mem clocks between the XT and XTX versions of these cards. We have determined that they both have the exact same 1.1ns chips rated at 900mhz. I still have yet to understand why I cannot get the mem to 870mhz+.
When setting the mem clocks with ATi tool strange things happen. Sometimes setting to 840mhz will cause artifacting on the desktop and crash the system, other times I can run 845mhz 100% clean and stable in 3dMark05. None of this adds up. I currently have active cooling on the mem so I dont think its a cooling issue, but im going to spend some time today mounting an extra fan just to be sure.