Using 2x4GB sticks with 2x2GB sticks.

Haider Akhtar

Honorable
Sep 7, 2013
3
0
10,510
Hello

First time user so I'm sorry if this question has already been answered but I couldn't find it.

My specs are

i5 4670k
Corsair Xms3 12 gb ( two 4gb sticks and 2 2gb sticks both are 1600 bus and 9-9-9-24 latency )
HD 7850 1gb
Corsair PSU 650 watt
GIGABYTE GA-Z87-HD3 LGA 1150

The problem I'm facing is that I my mobo by default is setting my RAM to 1333. When I increase the frequency thru the bios to 1600 the voltage goes up from 1.5 to 1.8 which my friend tells me might be due to the fact that the RAM is being overclocked which doesn't make too much sense to me because my RAM is supposed to run at 1600.

He tell me that this is happening because I have used two different sized sticks btw I have installed the RAM on the corresponding dual channeled slots so thats not the problem and when I run the PC after changing to 1600 it runs perfectly fine.
 
Solution
There is an option in your bios to enable XMP mode.
If you enable that the memory will run at 1600.
The faster you push memory in speed a small bump in voltage is required to keep it stable.

fudoka711

Distinguished


This ^. It'll probably say something like XMP 1.2. Just enable that and it should run at 1600. And its totally fine to run two different sets of ram sticks as long as you have two identical ones in the appropriate slots. Usually in a configuration of "A B A B".
 

Haider Akhtar

Honorable
Sep 7, 2013
3
0
10,510
Quick question. When I go to BIOS my mobo has the XMP option which was disabled, I changed that to Profile 1 but the mobo still showed the Memory frequency at 1333 (1.33 was written to be exact) so I increased that to 1600. Started playing some games and system froze.

Rebooted turned on XMP and reduced memory frequency back to 1333 and its working fine. So am I still using 1600 or am I at 1333 again?

I used CPU Z to check and under SPD>Max Bandwith it shows PC3-10700H (667 Mhz) but in the timings table given underneath there is a column for XMP 1600 which shows the frequency to be at 800 mhz which should mean that I am at 1600.

Pretty confused lol