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Ram voltage

G

gammaray

Senior member
hey guys,

im sure its been answered/asked before but,

whats the difference between memory ddr3 ram with 1.5V and 1.65V ?
 
gammaray said:
hey guys,

im sure its been answered/asked before but,

whats the difference between memory ddr3 ram with 1.5V and 1.65V ?
Click to expand...

The main difference you need to worry about is that sandy bridge only officially supports 1.5v RAM and running higher rated DIMMS with a SB chip could potentially cause instability or part failure.
 
gammaray said:
hey guys,

im sure its been answered/asked before but,

whats the difference between memory ddr3 ram with 1.5V and 1.65V ?
Click to expand...
The 1.5v runs at regular 1600MHz DDR3 memory, there are even some lower voltage models at out there. The faster memory uses 1.65v since it is over-clocked. I have the Mushkin model 996997 and it runs at 2133Mhz at 1.650v. Due to the large heat-sink on it (and case fans) it runs cool. If I go into the BIOS and back it down 1.5v, I also have to lower the speed to 1600Mhz. After running some benchmarks, the extra RAM speed is worth it to me.
 
Puppies04 said:
Waiting with baited breath...

Edit. Also FAUguy can you clarify what cpu you are running on.
Click to expand...
It was like 5 month ago when I built the system and ran some benchmark programs, don't have them installed any longer, but the paper I kept shows when the RAM was set to 1600MHz it got a bandwidth of 16GB/s, but at 2133Mhz it was 27GB/s bandwidth.

Intel 2600K CPU at 2.6GHz.
 
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