I have this same problem (Temps not right), and also some overclocking issues. I am using the latest, 1.4, BIOS.
My main overclocking issue is that 3D applications crash, giving me that nv4_disp driver crash. If I run at default, no overclock, everything runs fine. As soon as I overclock for example 262 (or 250 as I had before), even tough CPU is Prime95 stable and everything looks fine, if I fire up an app that uses the video card 3D features it just dies after a while. It either reboots itself, gives me blue screen with nv4_disp error, the image stays on the screen, or the monitor goes into powersave mode.
I have tried many LDT settings, but always get the crashes, in some settings it lasts longer than other, but I still get the crash. I am about to try the 8-bit settings that X2C talked about earlier. I also saw a post that X2C had problems with 3d crashing on high overclock, I would appreciate any input on that plz...
Lydia, if you think any changes in the beta BIOS could benefit me plz tell me so I can email you a request.
Thanks.
EDIT: Tried the 8-bit setting X2C talked about earlier, but I still get crashes...