8 GB Geil 1600mhz ram only seen as 1333mhz

melmac

melmac

melmac

Soldato
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19 Dec 2010
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I recently upgraded to a Sandy bridge system. I got a Foxconn P67A-S motherboard and 8GB Geil DDR3 1600Mhz ram. It al seems to work ok, but I was doing some benchmarks in Sisoft and noticed that I was getting very low scores for my memory bandwidth.

Then I checked my bios to see was anything wrong and noticed that it was only running the memory at 1066Mhz, so I shutdown and switched the memory to other channels to see would that work. When I booted up my memory now was running at 1333Mhz, so I decided to set it at 1600Mhz manually.

Got back into windows(windows 7) and ran the memory bandwidth tests again and it said that my memory was running at 1600Mhz, but that this speed is a 19% overclock!!

Is this a motherboard problem? Memory problem?
 
1600Mhz is an overclock in terms of the chipset. Intel will support 1066 and 1333 (I think) natively, anything else is overclock. It is no problem if the motherboard supports it and the memory is rated at 1600MHz
 
nkata said:
1600Mhz is an overclock in terms of the chipset. Intel will support 1066 and 1333 (I think) natively, anything else is overclock. It is no problem if the motherboard supports it and the memory is rated at 1600MHz
Click to expand...

Good explanation that :) .. Just set the required memory frequency in the BIOS. Don't be messing around with the base clock with SB though or you'll run into some serious problems.
 
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