A question about RAM

[chrisling]

According to my motherboard handbook, it says that my motherboard has 2 slots of DDR, the first is for DDR 400 and the second is for DDR 333, and the rest with slower speed. NOw actually I'm using a DDR 333 of RAM, I wonder if I buy 1 more RAM with DDR 400, will follow up the slower RAM speed since my chipset can support DDR 400? My motherboard is AS Rock 775MV800. Thanks.

[ski]

According to the online manual for the AS Rock 775VM800, it will support up to 1 GB of DDR 3200(400 MHz) RAM if only one RAM module is installed, and up to 2 GB of either DDR 2700(333 MHz) RAM or DDR 2100(266 MHz) RAM if 2 RAM modules are installed.
So if you currently have 1 DDR 2700 module installed, and install a 2nd DDR 3200 module, then either the 3200 module will run at the 2700 module's slower speed, or the system may not boot up.

[saphalline]

The DDR400 module should slow down to the DDR333 speed, but if it doesn't then you'll have to manually set the RAM speed in the BIOS. Sort of a pain, but it will work.