Re: OT? power reqs of DDR2 chips


Dave Stevens <geek@xxxxxxxxxxxx> writes:
I'm building a new box that will use a DDR2 2G reg/ECC chip. I need to
estimate power draw for the system and can't seem to find a reference. Its
Kingston Value Ram, if that matters. The box _will_ run Fedora.

I hate to give such a non-answer, but the power consumption is so
highly determined by your usage pattern that you really can't do
anything but try it and measure using a very low impedance meter.
When running block-moves you'll probably see around 2watts per
actively accessed chip. Fedora just sitting around will consume quite
a bit less. The power will probably be dominated by the termination
resistors of ~150mw per chip, which will be your ultimate lower bound.

-wolfgang
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Wolfgang S. Rupprecht http://www.wsrcc.com/wolfgang/
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