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Someone please tell me...

Thanks for answering.

I really don't see how that can be since I have 16GB RAM and that would add up to 240 watts. I'm running an i7 2600 which draws like 95 TDP peak and my current stock power supply on this Dell Optiplex 990 is a tiny 265 watt supply. And that doesn't leave enough power for everything else.

Can you point me to the answer? Thanks.
 
Memory typically runs at 1.5V, so to use 15W per 1GB, a 4GB DIMM would be pulling 40 amps. There is no way that much current is going to be flowing through those tiny traces on a motherboard.

http://www.valueram.com/datasheets/KHX1600C9D3_4G.pdf

According to this datasheet, that 4GB DIMM uses 1.41W, which seems substantially more believable and realistic. That may be at 1.65V rather than 1.5V, but either way, we're talking about a very tiny amount of power compared to a video card or proc.
 
mcturkey said:
Memory typically runs at 1.5V, so to use 15W per 1GB, a 4GB DIMM would be pulling 40 amps. There is no way that much current is going to be flowing through those tiny traces on a motherboard.

http://www.valueram.com/datasheets/KHX1600C9D3_4G.pdf

According to this datasheet, that 4GB DIMM uses 1.41W, which seems substantially more believable and realistic. That may be at 1.65V rather than 1.5V, but either way, we're talking about a very tiny amount of power compared to a video card or proc.
Click to expand...

This sounds a lot more reasonable. AFAIK, RAM is a pretty low power component, especially the newer DDR3.
 
The 15W per GB is likely a dated figure. Because of how technology is constantly changing that figure is constantly dropping. I wouldn't be surprised at all if the 4GB in my system uses the same power as the 640kB in the IBM AT board I have on my desk.
 
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