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Gigabyte GA-P55M-UD2: Bios sees 1600 mhz RAM as 1333

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a b } Memory
November 14, 2009 5:20:24 PM

go into bios and manually set the speed to DDR3 1600, make sure you set the voltage and timings right
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November 29, 2009 9:00:13 AM

I actually used the secondary profile in the BIOS and it reads the memory correctly. MIT -> XMP -> Profile1

The unfortunate side effect is that is also changes the CPU frequency of my i7-860 from 2.8GHz to 2.93, according to the Intel turbo boost gadget in windows 7, and then there's the +3-5C degrees on the idle temp.
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a b } Memory
November 29, 2009 2:40:53 PM

trale said:
The RAM I'm using is CORSAIR XMS3 4GB :

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Any idea why my mobo is running it at 1333 instead of 1600, how do I fix this?

That motherboard doesn't support 1600 by default.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Memory Standard DDR3 2200/1333/1066/800

So it's downclocking the RAM to a supported speed of 1333. To get 1600, you 'll need to follow Mindless's directions.
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a b } Memory
November 29, 2009 10:41:12 PM

I was going to post a warning about turning on XMP while using this board, how you can lose Turbo boost and idle downclocking features if you don't change anything else. Then I discovered I'd already written to you in your other thread.

Anyone else who stumbles in here looking for advice on working with RAM settings for the GA-P55M-UD2 (possibly all Gigabyte P55's) may be interested in that thread: http://www.tomshardware.com/forum/265920-30-enabling-af...
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November 30, 2009 3:20:05 AM

ekoostik said:
I was going to post a warning about turning on XMP while using this board, how you can lose Turbo boost and idle downclocking features if you don't change anything else. Then I discovered I'd already written to you in your other thread.

Anyone else who stumbles in here looking for advice on working with RAM settings for the GA-P55M-UD2 (possibly all Gigabyte P55's) may be interested in that thread: http://www.tomshardware.com/forum/265920-30-enabling-af...


Oh yes, I implemented your solution, and everything's working as it should now. Much appreciated!
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