Portege M400 - cannot use full 4 GB of RAM

I installed two modules of KTT667D2 / 2G on my laptop (Portege M400-103, part No. PPM40E - 012018 G 3) - total do 4 GB. However, the two original Windows XP Tablet and Ubuntu 9.04 are unable to see all 4 GB - they see 3.2 GB only.
The BIOS displays the amount properly - 4096 Mb.
I also tried to solve the problem of updating the BIOS to the latest version (3.80, 30/05/08), but two operating systems (Windows and Ubuntu) see still 3.2 GB only.
Any ideas? Thank you.

Post edited by: Greendrake

> However, as well original Windows XP Tablet and Ubuntu 9.04 are unable to see all 4 GB - they see 3.2 GB only.
That s nothing unusual!
That s a limitation of 32-bit. All operating systems 32-bit (no matter if it is Vista, XP or Linux) can manage 3.2 GB max.
Only a 64-bit OS might be able to use and recognize more than 3.2 GB of RAM

You should read a few articles about 32 bit OS and 4 GB RAM problem.

See you soon

Tags: Toshiba

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