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TRIPLE CHANNEL MEMORY - SPEED DIFFERENCE

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June 9, 2009 12:59:55 PM

System Model : XPS 435 MT

Memory : 3x2GB of DDR3 memory with 1333MHz.

I have 2gb of 3 memory sticks - total speed shown is 1066 MHz instead of 1333 MHz

Tried populating memory in combinations of 135 & 246 , made no difference to the speed

As per Triple Channel configuration, 3 memory sticks of 2gb each , total of 6 gb on slot 135 or 246 should show 1333 MHz not 1066 MHz

Pl advise

rgds

KIRAN TJ

CompTIA A+ | DCSE (M) | Six Sigma (YB) | MCSE | MCP| DCT (M)

June 9, 2009 1:33:35 PM

By default X58 and i7 920 run memory at 1066mhz. You'll need to go into the BIOS and change the default memory multiplier from 2:8 to 2:10, that should equal to 133mhz x 10 = 1333mhz RAM.
a b } Memory
June 9, 2009 2:20:39 PM

As for the rated speed: The SPD chip on your RAM provides a number of potential settings, and your computer's Bios has chosen the default. If you don't like that it's showing a different number, then set your memory divider appropriately. 2:10, as Flyin indicates.


As for any difference in speed... You may not want to bother, since there is little/no performance gain associated by running higher clocks:

http://www.tomshardware.com/reviews/memory-scaling-i7,2...
June 9, 2009 3:13:05 PM

Amazing guys, got this working now ! -

This is one of the best & fastest reply I ever had

Good luck & thanks again :) 

Kiran T.J | CompTIA A+ | DCSE (M) | Six Sigma (YB) | MCSE | MCP| DCT (M)
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