How-to upgrade BIOS on MSI-motherboard

[Azyx]

First.
I was in a store and buy a DDR2 2GB memory and they say that i only could get 3GB RAM with 32-bit operatingsystem. As I understand it the limit are 2 uplifted to 32 = 4294967296. I have only 3GB now but want 4GB. Is it possible to get 4GB on a 32-bit Ubuntu 10.04LTS or newer?
My motherboard are this:
http://www.msi.com/product/mb/P6NGM-FD.html#/?div=FAQ
I have a older BIOS that get problem to report 4GM RAM to the system. I can not find an the page how I should upgrade BIOS if I don't have Windows. May anyone help me?
I have a FAT16 USB-memory. FAT16 was nessiesary för upgrading ASUS eeePC 900.

[kev77]

This thread may be helpful http://forum-en.msi.com/index.php?topic=122350.0

[Azyx]

This thread may be helpful http://forum-en.msi.com/index.php?topic=122350.0

Thanx kev77. I used a link on you link that explande in the comments hoow you can copy FREEDOS to a USB-stick and then add flash-utility and the bios to the stick.
http://www.linuxinsight.com/how-to-f...l#comment-2236

/Cheers