Mismatch Memmory Pairs

[donmer]

There was a great deal on newegg for gskill 16GB(2x8GB) DDR3 RAM with

• DDR3 2133 (PC3 17000)
• Timing 10-12-12-31
• Cas Latency 10
• Voltage 1.6V

I bought it and then checked my specs for my mobo: ASRock 970Extreme3R2. It Support DDR3 2100+(OC)/1866(OC)/1800(OC)/1600(OC)/1333/1066/800 non-ECC, un-buffered memory.

My current memmory is 8GB(4x2GB) DDR3 with

• DDR3 1600 (PC3 12800)
• Timing 9-9-9-24
• Cas Latency 9
• Voltage 1.5V

I do not want to overclock anything that would void my mobo warranty but just get it setup for the best performance within standard specs. I do overbuy on my memory specs, so I can use them in the future. My Question are:

Is it ok that the voltages are different or should they both be set to 1.5v and will the system make the adjustment?

I know the system will set all modules to lowest speed but should still get 1333MHz. Always confused: will 2 different pairs of matched modules run in dual channel mode?

If each pair is OC to different MHz speeds (eg 1600 & 2100MHz), Can they still run in dual channel mode?? And will that void mobo warranty?

TIA - Thanks in advance

 

[Dark NighT]

I think if you manually set all of them to 1600mhz 9-9-9-24 on 1.5v that it will work just fine. that gskill kit only needs 1.6 volts if it runs at rated, but if you go below it you can drop the volts.