Problem adding PC3200 RAM to PC2100 computer

[ar123]

Hello,
My ASUS m/b [running XP SP3] was installed with 1x256MB PC2100 DIMM. I recently bought 2x512MB PC3200 DIMM & tried to add them. I encountered the following problems:
1. It is not possible to mix the PC2100 with the PC3200. The PC hangs & comes up with 'fatal error' blue screen.
2. It runs fine with 1xPC3200 card but as soon as I add the 2nd PC3200 card, it hangs & comes up with 'fatal error' blue screen.
Pls help.
A.R.
Montreal.

 

[GhislainG]

Does your motherboard officially support PC3200 memory? Since it came with PC2100, the fastest RAM that can be used probably is PC2700.