Memory module power consumption?

[Valnar]

I have a PC with a single 2GB DDR2 v1.8 module. Does anyone have an idea (without trial and error) of how many watts a second 2GB module would use? This is for a firewall, and I want to keep power consumption low. If a second 2GB module is negligible, I'll add it.

 

[defaultluser]

A couple watts, at-most.

http://www.fujitsu.com/downloads/EDG/binary/pdf/products/memory/fcram/power.pdf

Memory power consumption does not become significant until you start clocking it fast and raising the voltage.

 

[Valnar]

So about 2 watts. OK, thanks.