Ram question

[TP-Oreilly]

everest memory benchmark, how do i go about making sure the ram and qpi ratio is 1:1?

 

[Remeniz]

My QPI is running @ X 44 and with a BCLK of 160 that equals 7040MT/s. I have found that as you start to reach close to 8000MT/s things become very unstable. But I never stuck to a 1:1 ratio.

The Uncore is important. Keep this figure close to double the RAM speed. So if your RAM is clocking @ 1600mhz then ensure that the Uncore is 3200Mhz, or if the RAM multiplier is X10 then set the Uncore to X20.

I run Uncore @ X20 for 3200Mhz. My RAM is @ X10 for 1600Mhz.

EDIT:

What Read, Write, Latency figures are you getting @ 1600Mhz?

 

[TP-Oreilly]

My read, write and latency figures are better when i have my ram set to 1333.

For my 1333 ram i score:

Memory - Allocate small block : 5619.1 (MBytes transferred per second)

Memory - Read cached: 2417.6 (MBytes transferred per second)

Memory - Read uncached: 2311.2 (MBytes transferred per second)

Memory - Write: 2268.5 (MBytes transferred per second)

Memory - Large RAM: 1666.9 (Operations per second)