i just buy one 2G Corsair Gaming Memory from lowyat saturday to upgrade my toshiba L300-P502 notebook
Corsair Gaming Memory detail
http://www.corsair.com/products/gaming_memory/default.aspx

Performance Information and Tools, Result from vista sp2

System
) Manufacturer TOSHIBA
) Model Satellite L300
) Total amount of system memory 2.00 GB RAM
) System type 32-bit operating system
) Number of processor cores 2
) 64-bit capable Yes



Before

Processor Pentium® Dual-Core CPU T4200 @ 2.00GHz =4.9
Memory (RAM) 2.00 GB =4.9
Graphics Mobile Intel® 4 Series Express Chipset Family =4.1
Gaming graphics 829 MB Total available graphics memory =3.8
Primary hard disk 90GB Free (123GB Total) =5.3

Module 1 DDR2, PC2-6400 (400 MHz), 1024 MBytes, Hyundai Electronics
Module 2 DDR2, PC2-6400 (400 MHz), 1024 MBytes, Samsung


After
Processor Pentium® Dual-Core CPU T4200 @ 2.00GHz= 4.9
Memory (RAM) 3.00 GB =5.3
Graphics Mobile Intel® 4 Series Express Chipset Family=4.1
Gaming graphics 1341 MB Total available graphics memory =3.8
Primary hard disk 88GB Free (123GB Total) =5.3

Module 1 DDR2, PC2-6400 (400 MHz), 1024 MBytes, Hyundai Electronics
Module 2 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Corsair
--
After add 2 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Corsair
Module 1 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Corsair
Module 2 DDR2, PC2-6400 (400 MHz), 2048 MBytes, Corsair

Vista 32bit and BIOS can detect 4G ram

This post has been edited by island: Jun 26 2009, 10:38 PM