1. Disable PEG/M74 SERR for M74 DTM.
2. Modify maximum memory value (2G or 4G) in DMI table.

To update the bios in Windows Vista please right click on VLV-110.exe and start the program as Administrator.
To update the bios in DOS copy the content of the this folder to a bootable DOS media, let the notebook boot from it and execute bios.bat.