DDR3 RAM and CAS question

[elrasho]

I currently have 2x4GB of these: CMX8GX3M2A1600C9

I have two DIMM slots left, can I install two matching DIMMS that are different make and model? The ones I have are PC3-12800 with CAS 11-11-B1, so they are slower. Will this affect my Corsair RAM?

 

[kitfit1]

Yes you can install them, but your ram speed will default to what ever the slowest ram is. If you want or need to run the total ram faster, you will then need to overclock it and run thorough testing during the whole process.

 

[MaXxBoulton]

it will work fine, put the slower ram in socket A1 and all ram will be defaulted to that speed,
if you put the faster ram in A1 the system will try to run all ram at the same speed and it may not boot.

 

[elrasho]

I decided not to risk it and got some more RAM of the same I already have

 

[MaXxBoulton]

I decided not to risk it and got some more RAM of the same I already have

Played it safe... Live life on the edge

 

[elrasho]

Ha ha, well its from the Bay so I am kinda living life on the edge

 

[MaXxBoulton]

Ha ha, well its from the Bay so I am kinda living life on the edge

wow that's some next level stuff, Best of luck

 

[elrasho]

So I've put the RAM in, CPU-Z is showing the DIMMS I bought as Single in the Rank section? Does this mean they are not running as dual channel?



My old RAM looks like this

 

[kitfit1]

So I've put the RAM in, CPU-Z is showing the DIMMS I bought as Single in the Rank section? Does this mean they are not running as dual channel?



My old RAM looks like this

No, it means you have a mixture of single ranked ram and dual ranked ram.

 

[MaXxBoulton]

Don't confuse ranks and channels

Ranks is the arangment of ic's on the sticks. The ram will still be running in dual channel

 

[elrasho]

Thanks guys

 

[MaXxBoulton]

Thanks guys

No problem