I hope someone have experienced the same thing as what I am having. I have a toshiba U400 laptop with 2GB ram. As a typical laptop it has all the gear built in. Wireless, bluetooth, etc.
It has 1 extra memory slot left and I want to upgrade the memory to 4GB. I understand XP can only run 3GB but I dont mine. When it is the right time I will upgrade it Vista anyway.
The problem. I order 1 X 2GB ram from Toshiba and I am certain it is compatible with my laptop. And my laptop bios can take a max of 4GB ram.
When I install the new memory, the laptop boots up but I lost my wireless card. When I look into the device manager, there is a problem with a device driver, Intel family PCI express Root port 6 to be exact. Other than that the laptop is having trouble shutting down.
I then took out the new ram and reboot. The laptop went fine again. My wireless card is back.
I then swap the new ram with the old one, just to test to make sure there is nothing wrong with Ram. The laptop is again fine.
I have seen this kind of problem before and it is mainly due to the memory allocation to the many built in device with the new addition of memory, the device driver is having difficulties with the new mem allocation. The one way to fix it is to do a clean install of XP should resolve the problem. But this time round I do not want to re-install.
Has anyone seen this before and suggestion to fix this without wiping out the OS?