Thinkpads Forum

BIOS 1.03b was released earlier today, april 17th:

http://www-307.ibm.com/pc/support/site. ... MIGR-69538

* (New) Enabling ODD Power Management, the power is off when Optical Device Drive is idling.
* (New) Support WiMAX communication standard.
* (New) Intel Memory Reference Code update.
* (New) Update of Intel AMT 2.6 Management Engine Region Firmware (the models with Intel AMT 2.6 feature only).
* (Fix) Boot error occurs at Intel ICH8M SATA initilization.
* (Fix) The boot sequence is different from the expected one in case of Wake on LAN(WOL).

this is considered by lenovo as a critical BIOS update.

fwiw, a linux X300 user I know has been having random hard lockups since this update.

Well, FWIW, running Business Vista, I installed the 1.03b BIOS three or four days ago when (to my surprise) it showed up as I was trying every driver update and every new intel graphics driver and upek fingerprint driver I could find to get sp1 to show up on windows update.

I saw neither sight nor sound of sp1, but I've had no problems at all with the new BIOS.

same here.   mine has seen three days of heavy use under vista ultimate x64 and no issues have shown up so far.