[H] ram limit for thinkpad

[Winterlight]

I have a Thinkpad X41 Tablet. It came with half a GB soldered on the 
board and a half a GB of upgradable SODIMM PC2-5300 • CL=5 • 
Unbuffered • NON-ECC • DDR2-667. Manufacturer specifications call for 
up to 1GB SODMIM or a maximum amount of RAM of a 1.5 GB.

A crucial 2GB SODIMM isn't much more then a 1GB. Does anybody think I 
can make this work.... or will the BIOS prevent me from adding the 
bigger SODIMM.