I have a dual 8356 Opteron and 2 1354 Opterons that were all running Ubuntu 64. Thanks to the generosity of someone here I am able to move them to Vista 64. I have Vista 64 DVDs and I like it ok as I run it on my desktops. I have been putting the Opterons in cases with lots of filtering and fans and moving to the garage for the summer. The Linux monitoring programs do not support the chip sets and with Vista I will be able to keep an eye on temps when it gets 90 degrees here.
I installed Vista 64 on the dual 8356 last night. All I did was install Vista 64 with Service pack 1 and the updates. Nothing except HWMonitor and Boinc was installed and HWMonitor is not running. No changes were made to BIOS settings or hardware. BoincView under Est Speed now shows 1.9 GFLOps whereas with Linux 64 it showed 2.1 GFLOps.
Has anyone else noticed a difference in crunching performance between these two OSes? I am not too sure I am going to do the other 2 Opterons until I see if the RAC is that much different. I guess I'll know in a week or 2 just wondering if anyone else has seen this.
EDIT: Watts went up too. From 219 under Linux to 235 under Vista. Not surprised I've seen this before but about to go back to Linux.