Recently added more 2x 4gb 1600mhz RAM. and now all of them are running on 1333mhz

HamiltonJr

Prominent
May 2, 2017
3
0
510
I have two standard Corsair 4gb Ram combs at 1600mhz on my pc for years.
Nothing special, the most cheap Corsair Ram on market.
Theyre tested on Memtest86 and are in good conditions, no errors found.
So i decided to buy more 2x4gb combs, but this time i picked the Corsair Vengeance. On the same frequency, 1600mhz. And the same brand, Corsair.
Organized them to work on dual channel but, when i turned on my pc, concluded that i cant boot on 1600mhz, it fails. It only boots on 1333mhz.
I tested the new Mems too. The program confirmed that they are 1600mhz rams and no errors was found, they are healthy too.
I can use my pc normally with the 4 mems working, but not on 1600mhz, the real frequency they have.

My mobo is Gigabyte 970A-UD3P

Please, what it could possibly be?
 
Solution
You may not be able to find a set of timings that both sets of RAM can be stable. You are mix-and-matching RAM. That doesn't always work out well. 1333 may be the only clock speed you can get that both sets of RAM will agree on.

The manual don't specify that on any page. Researched on internet too, but got no information.
But, if we assume that is the case and i wont be able to run my DIMMs at 1600.
How much gaming performance will i lose?
 
Real frequency, 1333 is technically the standard. That aside, it is most likely the result of mixing memory. It can't use either SPD timings so it defaults to 1333.

To get it to run at 1600 you'll need to configure them manually.

Try something low like 1600 11-11-11-28 at 1.5 volts and see if that makes it happy. If that isn't stable, try running the voltage a little higher like 1.55 volts. And from there you can try to lower the timings for better latency. Or if you are feeling up to, push for more frequency.

For more detail, just look up memory overclocking. 1333 might be all you can get, but I doubt it.
 


Thanks for the information! Ill look how to do this high away.
But sorry friend, i didnt understand this last phrase. My english is a little poor.
Saying 1333 might be all i can get, you're meaning that even trying to OC my memories to 1600mhz (their default frequency), i wont be able to pass 1333? And why is that?
 
You may not be able to find a set of timings that both sets of RAM can be stable. You are mix-and-matching RAM. That doesn't always work out well. 1333 may be the only clock speed you can get that both sets of RAM will agree on.
 
Solution