Slightly confused about my RAM timings/speed

chickadee · 28 Feb 2016 at 18:45

So I just grabbed a cheap hex core Xeon and after looking at my memory im not 100% sure its running at the correct speed. They are a triple channel set of Kingstone Hyper-X 1600mhz 2gb.

I tried eneabling the XMP profile but it fails to boot which is a bit weird.

Here are my CPU-Z screens:

One Vision · 14 Mar 2016 at 21:35

Set the command Rate to 2T, should be fine.

C64 · 18 Mar 2016 at 21:52

This ram should do over 1600mhz at 9-9-9-24-36 1T

I have the 4gb hyper x kits rated 9-9-9-27-36 but they do the same settings above at 1.65v

P4Clock · 18 Mar 2016 at 22:57

1366 Xeon's are funny with 1600Mhz + ram that why you have problems with xmp

yashiro · 19 Mar 2016 at 00:59

You can't just set it and go. You need to fix other multipliers. Ram speed on 1366 era gear is tied to the speed of multipliers attached to the CPU. Do some more reading on Nehalem overclocking.

http://www.xtremesystems.org/forums/showthread.php?205688-Nehalem-101-part1-1366-and-X58
http://www.xbitlabs.com/articles/cpu/display/core-i7-920-overclocking_2.html#sect0

There's an old app called 'nehalem calc 1.3' which was useful.

Your current bios settings appear to be:
BCLK: 135 -- gives 3.105Ghz
CPU Multi: 23 -- probably auto
QPI Multi: 24
Uncore Multi: 20 -- has to be greater than double the mem multi.
Mem Multi: 10 -- this in combination with the BCLK is giving you DDR3 - 1350 speeds.

If you want an easy way to 'fix the ram speed' set the ram (9-9-9-24) then just change your BCLK in the bios to 160. If I'm reading your current numbers right it will put the ram at 1600.