Originally Posted by N2Gaming
ny driver, Have you looked at your CPU usage while underload when those temps are so different to make sure both cores are being stressed at the same percentage. Also do you have the duel core optimizer installed. Some one said in this forum IIRC it may have been Tator tot and what was said is this. You don't have to install a duel core optimizer after one of the XP service packs. I don't remember if it was service pack 2 or 3.
I corrected this once, and I'll correct it again. Neither SP2 or SP3 come with it.
If you have it installed you will see it under your msconfig as amd_dc_opt, under add/remove as "Dual-Core Optimizer", and C:\\Program Files\\AMD\\Dual-Core Optimizer.
Just because the cpu looks like its even doesn't mean it is. It actually prevents hiccups and bottlenecks and makes 40% of cpu usage much smoother as well as more efficient.
Also, when you remove the heat sinks, does the surface look like it was all contacting the cpu?
Only thing I could think of is single threaded app, lack of dual core optimizer, or a messed up hsf/clamping system.