I must say I'm grateful for this thread which guided me in upgrading a C740el Compaq Notebook. Some details about my current configuration: T8300 CPU 3GB (2+1GB) RAM @333Mhz GM965 Chipest (identified by the 500Mhz GPU core clock vs. 400Mhz on GL960) F.35 BIOS I've encountered some problems though: 1. Speedstep is not working (was with the T2330 CPU I've replaced). "Processor Power Management" settings Power Options are correct. AIDA64 reports EIST as supported and enabled. However, even with 0% CPU Acvtity, the frequency is still stuck at 2.4Ghz. 2. CPU/ mainboard temperatures are not reported correctly anymore 3. I cannot get an Apple branded BCM94322MC WLAN card to work with this notebook. Whenever the card is inserted and I try to turn on the notebook it's stuck on a black screen. If I remove the card at this point, the notebook shows the POST screen and boots correctly. Another interesting thing I've observed is if I hot-plug the card after BIOS POST, the computer locks. If I do it in Windows, I cannot control keyboard or mouse anymore and I get highly increased CPU activity. If I remove the card, computer resumes normal execution. If I hot-plug the card that came with the notebook (AR5007EG based) none of the explained behavior happens. It just ignores the insertion. If I plug it with the power off, it boots and works correctly, as expected. I must also mention that the BCM94322MC is working perfectly (I've tried it in a different notebook). I've also tried an F35 bios version with whitelist check removed and I get the same behavior. If anyone has encountered any of the described issues or has a clue about it I kindly ask for a reply. Thank you.