Intel Mobile Processor Compatibility Guide

[K-TRON]

Your system will not understand the 1066MHz FSB, because the BIOS does not support them. Even if the BIOS recognized a T9800 at 2.93Ghz it would only run at 2.2Ghz because the system can only run a 800MHz FSB.
Your best bet is to upgrade to a socket P SANTA ROSA cpu like the T8300, T9300, T9500

K-TRON

[superfun2k8]

like k-tron sayed on the example with the t9800, the cpu doesn´t just start with fsb800? i mean, desktop-cpu´s with fsb1066 can also run on fsb800 systems with a limited performance, reasoning on the lower fsb...

[Commander Wolf]

like k-tron sayed on the example with the t9800, the cpu doesn´t just start with fsb800? i mean, desktop-cpu´s with fsb1066 can also run on fsb800 systems with a limited performance, reasoning on the lower fsb...

Sadly, laptops just aren't as flexible as desktops. Period.

[Andy]

and with confirmed bios-support it also won´t work?

I can confirm that the HP 6720s doesn't support 1066MHz FSB CPUs.

[superfun2k8]

I have a new question... I upgrade my notebook with the system-board of a 6730s, which has gm45 chipset and can handle fsb1066... but do I need ddr2 with 1066mhz or can I still use my 800mhz modules? desktops can handle ram with a lower clock, but I don´t know how this works with laptops

[Andy]

Notebooks can also handle RAM with a lower clock.

And there are no DDR2-1066 SODIMMs available.

[superfun2k8]

so I thank you very much... after these infos I can now upgrade my notebook 6720s to the next higher model 6530/6730s with the GM45 chipset

[kevin55699]

Thanks for the Info.

So will a T7250 (socket P) work in Socket M 945/940 chipset?? since they both used 479 socket??

[K-TRON]

No
Socket M processors have a different electrical pinout than socket P processors. A T7250 will not work

A T7200, T7400, and T7600 will work, but they are rather expensive processors.

K-TRON

[es0teric]

awesome thread