How to best use 2 ram kits?

[G777]

Okay, so I'm looking for some suggestions to my dilemma. Just replaced the memory in my x58 board and was hit with new hardware bug, so went out and grabbed a Sandy Bridge set up (26600k & Asus P67 Deluxe).
So now I've got this dual vs triple channel problem.

Running in the x58 board 3X4GB=12 Mushkin Blackline 1600Mhz cas9
Running in the P67 board 2X2GB=4 Corsair Dominators 1600Mhz cas8

So right now I have 1 2GB stick of the Corsair sitting around from the triple channel kit. Bearing in mind I run F@H 24/7 and assuming the Mushkins would run fine in the SB rig, how would you divide the ram? Or sell the Corsairs and buy a 8GB kit for the 1155.

This is giving me a headache!

[_dangtx_]

i think it should still be able to do dual chan with mixmatched sticks, but you got to try it to be sure.

i think more ram = still better than dual chan and less. ppd will tell.

[Arinoth]

Personally i feel anything over 6GB is really a waste as you'll almost never use it, i only used over 4gb when i was adv wu folding

[G777]

Originally Posted by Arinoth

Personally i feel anything over 6GB is really a waste as you'll almost never use it, i only used over 4gb when i was adv wu folding

Bigadv folding is what I'm using it for, and I'm concerned 4GB might be dodgy. I only bought the 12gig kit 'cause ram's so cheap right now... I just had to!

[ilya]

IIRC since Intel started integrating their memory controllers, they've been able to handle dual and single channel simultaneously.

I'd just drop the stick in and see if you get too big of a performance loss on your folding numbers. If the loss is negligible, just leave it, if not take it out until bigadv needs more than 4gb. If you get any kind of instability, just loosen timings and check performance.