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LOW memory bandwidth on Core I7 2600K

post #1 of 12
Thread Starter 
Hi everyone.We upgraded my friend's PC to Sandy Bridge platform
We bougth Gigabyte P67A-UD4 , CoreI7 2600k.
We took 4.5Ghz With 1866mhz memory.
We set default clocks to 3.4Ghz 1600

And we still have the same scoe in memory benchmark.
Maybe i've lost some thread about memory ?
I set memory slots like this:
1 empty
2 empty
3 corsair
4 corsair


Please, help ))))
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post #2 of 12
That configuration is single channel.

Use the 2nd and 4th slots.
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post #3 of 12
Shouldn't it be in slot 1 and 3?

Or

2 and 4 I guess?


Mine is.... 1 & 3
    
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post #4 of 12
Thread Starter 
why it's so important to do such memory slotting.
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post #5 of 12
learn to ram timing.
post #6 of 12
Quote:
Originally Posted by bespreDELL View Post
why it's so important to do such memory slotting.
Because same-colored slots are designed for dual-channel operation.

Also, like the above poster said, lower your timings. 11-11-11-29 is awful for DDR3 1600.
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post #7 of 12
Quote:
Originally Posted by BallaTheFeared View Post
Shouldn't it be in slot 1 and 3?

Or

2 and 4 I guess?


Mine is.... 1 & 3
Don't think it matters on LGA-1155, other than for clearance issues.

Quote:
Originally Posted by bespreDELL View Post
why it's so important to do such memory slotting.
Because the first two memory slots have no physical connection to the second memory channel on the CPU, so if you want dual channel with two stick of ram, they can't both be in the first two, or last two, slots.
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post #8 of 12
Here is what I'm getting in slot 1 & 3

Keep in mind I use value ram

    
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post #9 of 12
Pretty sure your RAM timings can be tightened up just a little bit.
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post #10 of 12
Hummm here is something odd.

I noticed I never reset my tRAS clock to 26 - did so and reran aida64 again and got noticeably different results...



In the cache area... L3 to be exact...

Possibly testing error, or something else... but I thought it was kind strange.
    
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