I was just wondering, is there any way to turn off HT with in Windows 7? I have a Acer Aspire 5740-5513 and the BIOS has no options for turning of HT. However, I CAN turn off one of the Cores using msconfig. However, I still have 1C/2T according to CPUZ. Is there a way to just turn off HT and have just 2 cores active with NO HT? The reason is that I get about 40 minutes more battery life with just using a single core + HT. Theoretically, having 2C no HT should give me about 20 more minutes (compared to 2C/4T).
Unfortunately I don't know how msconfig handles which cores get disabled (if 1 and 2 are physical and 3 and 4 are the hyper threaded, logical cores, or whether the physical are 1 and 3, and the logical are 2 and 4), and there's no way to specify.