Putting a 400MHz DDR on a mobo...

[cf1709]

Is that thing okay? There's this old PC (whose memory is old and defective) I'm going to sell. The ECS P4VMM2 supports 184-pin DDR memory speeds of up to 266MHz.

The problem is I can't find such RAM sticks in our area nowadays.

 

[sutahz]

It'll work. Motherboard sets the ram's speed, not the other way around.

 

[Foxery]

Components are perfectly happy to run slower. Your machine will keep running at 266mhz, and be none the wiser.

 

[cf1709]

Now I understand. Thanks

 

[EarthwormJim]

More than likely the ram will have an spd setting available for the motherboard to automatically detect at that speed.

Either way it should work fine, ddr isn't like older sdram where you really had to worry about backwards compatibility.