Jun 13, 2008
-   Yeah, I have a simillar problem when installing 2GB of RAM. I've been using a memory consisting of 2x512MB Geil Value Pack, witch worked fine on my Abit AX8 mobo. But just a few days ago I decided to upgrade it to 2GB. Well, that's the problem: the pc crashes in Windows XP, when using 2 gigs. And it happens randomely, sometimes it works fine for a while, before receiving a stupid blue-screen error and than reboots. I've tryed multiple combinations of memory, all of witch sums up to 2GB. The mobo is fine phisically, and i guess my power source (450W) is enough. And every time I use just 1.5GB of RAM it works fine.
Just now, I installed 2x1GB of RAM (one made by Apacer and the other made by Kingmax ), placing them in the first and third slot (which in my mobo's manual means single channel data bus) and I haven't had a crash for an hour or so, which is quite a record.
So I'm asking: could there have been a problem runnig different memory modules (but all consisting of DDR400 memory) in dual channel ?-  
Om_Bun