Ram is running slower than stock speed

NightFeather

Honorable
Jan 24, 2013
52
0
10,630
Hey, so I have some DDR3 ram that runs at 1600 stock speed. Recently I realized while running cpu-z that it was only at abouy 600, so I did some research and discovered I never fully set up my ram in the bios. In the bios it said that it was at 1300 1:5, but after selecting the xmp 1.2 profile, it said that it is now at 1600 1:6, which seems correct.

The problem is, it is still way under 1600 mhz. Now on cpu-z it says it is at 799.9, which is an improvement, but still way under 1600. Here is a validation from cpu-z, ignore my cpu speed as I have speedstop on so it will be lower than normal (3.4 Ghz).


So what is wrong with my ram, why wont it run at 1600 mhz like it is supposed to be at?

EDIT: CPU-Z validation: http://valid.x86.fr/d9f22i
 
Solution


Hello,

It is normal: the base clock is 800MHz, but the data transfer is done at 1600MHz; the RAM is calling DDR for a reason: Double Data Rate, so in any DDR memory (DDR to DDR4) data transfer has twice the speed of the base clock.

Cristi72

Admirable


Hello,

It is normal: the base clock is 800MHz, but the data transfer is done at 1600MHz; the RAM is calling DDR for a reason: Double Data Rate, so in any DDR memory (DDR to DDR4) data transfer has twice the speed of the base clock.
 
Solution

Cristi72

Admirable


No, the dual/triple/quad channel doesn't multiply the frequency, just the memory width bus (single-channel: 64-bit, dual-channel: 128-bit, quad-channel: 256-bit).
 

ElMeiser

Reputable
May 6, 2014
46
0
4,560
If he mixed RAM speeds, then that may be the problem because if you have a lower clock speed on a stick, then all the other RAM modules will clock to the lowest speed