Hi I have Laptop that was returned to me after a motherboard failure with the 2.4ghz p4 processor running at 1.82ghz, SiS Sandra and CPU-Z as well as the windows Info say the motherboard FSB is running at 101mhz or so, a 2.4 ghz is a 18multiplier with 133mhz. I took the laptop back in person to their store and the tech guy there flashed the bios and swapped the processor(he put old one back in after) both of which did not fix the problem. The tech guy said he needed to contact the supplier of the laptop, who are Elite group (they replaced the motherboard on this to) who may know what to do. The bios does not allow for any changes to the multiplier and FSB, i was told that most modern motherboards automatically set these speeds. When Booting the info screen that pops up says 2.4ghz p4 cpu so motherboard detects it correctly. The bios version is NoteBios 4.0 release 6.0. motherboard model according to Sandra is a SIS645DX, which has a max FSB of 4x133 though it states that this FSB is running at 4x101. I am running Windows Xp professional Ver 5.01.2600 Service pack 1. So as you can see a most perplexing problem if anyone has any idea on what the issue might be i would love to hear them! Thanks