Disgrace

[kilosierra]

Originally Posted by StonedRaider

I have this system:

I7 2600K
12 GB 1600 DDR3 RAM
Asus P8p67 pro board
2xAsus ATI 6970 overclocked to run at 920 mhz
64 GD SSD (with win7 and CoD installed only)

How did you get 12 GB into a P8P67?

Those are Double-Channel boards and AFAIK there are no 6 GB sticks on the market. Mixing sticks of different size and specification isn`a good idea either.

[Bokononist]

Originally Posted by kilosierra

How did you get 12 GB into a P8P67?

Those are Double-Channel boards and AFAIK there are no 6 GB sticks on the market. Mixing sticks of different size and specification isn`a good idea either.

Ah yes but you can get 4GB sticks, so 3 x 4 GB dimms would be my guess, I have 4 x 2, but that's because I upgraded from my original 2 x 2 config.

[StonedRaider]

Originally Posted by kilosierra

How did you get 12 GB into a P8P67?

Those are Double-Channel boards and AFAIK there are no 6 GB sticks on the market. Mixing sticks of different size and specification isn`a good idea either.

3x4GB modules.

Corsair Vengeance 12GB (3x4GB) DDR3 PC3-12800C9 1600MHz Triple Channel Kit (CMZ12GX3M3A1600C9)

Lane 1,3,4. No problems so far. System registers 12GB and has used up to 10.5 at one point. Also iirc had to edit something in the BIOS as per manual.

[kilosierra]

Originally Posted by StonedRaider

3x4GB modules.

Corsair Vengeance 12GB (3x4GB) DDR3 PC3-12800C9 1600MHz Triple Channel Kit (CMZ12GX3M3A1600C9)

Lane 1,3,4. No problems so far. System registers 12GB and has used up to 10.5 at one point. Also iirc had to edit something in the BIOS as per manual.

Of course it works, but you probably cut down the performance (and maybe the stability) of your rig.

See here:

http://www.asus.com/Motherboards/Int...P8P67_PRO/#MSL

Asus obviously recommends using either 1, 2 or 4 banks, while using only one is single channel. I would guess with using 3 banks, you forced the board into single-channel mode too.

Triple channel works only on boards supporting it, with the P8P67 series not being amongst them.

[StonedRaider]

Originally Posted by kilosierra

Of course it works, but you probably cut down the performance (and maybe the stability) of your rig.

See here:

http://www.asus.com/Motherboards/Int...P8P67_PRO/#MSL

Asus obviously recommends using either 1, 2 or 4 banks, while using only one is single channel. I would guess with using 3 banks, you forced the board into single-channel mode too.

Triple channel works only on boards supporting it, with the P8P67 series not being amongst them.

Have not noticed any performance issues. i7 is running at 4.5 with Vcore 1.360 (can not remember it, been a while since i set it) set in BIOS. Numerous 4 hour long stress tests and no errors.

So you suggest i take out a module and use lane 1 and 3 with 8GB to get better performance?

[kilosierra]

Originally Posted by StonedRaider

Have not noticed any performance issues. i7 is running at 4.5 with Vcore 1.360 (can not remember it, been a while since i set it) set in BIOS. Numerous 4 hour long stress tests and no errors.

So you suggest i take out a module and use lane 1 and 3 with 8GB to get better performance?

Well,

I think you should try to ask Asus support, what the board is doing with 3 used banks. As I said before, I guess it runs on single channel mode, which costs you between 5 to 10 % of performance.

You could benchmark your RAM in both configs too.

[StonedRaider]

Originally Posted by kilosierra

Well,

I think you should try to ask Asus support, what the board is doing with 3 used banks. As I said before, I guess it runs on single channel mode, which costs you between 5 to 10 % of performance.

You could benchmark your RAM in both configs too.

I could ask Asus support but i doubt they would want to help me much.

5-10% performance is not a big diddlio for me. But i think the better sollution is to just buy another module of the same RAM making it up to 16GB. Problem solved right? As it will be using all 4 lanes. Or am i missing something.

[kilosierra]

I don`t know much about triple-channel RAM (never had a board using it), you have to find out, if your RAM supports double-channel too. If so, you are right, get another stick.

[PotNoodles]

Originally Posted by StonedRaider

Have not noticed any performance issues. i7 is running at 4.5 with Vcore 1.360 (can not remember it, been a while since i set it) set in BIOS. Numerous 4 hour long stress tests and no errors.

So you suggest i take out a module and use lane 1 and 3 with 8GB to get better performance?

If that Cpu is overclocked then you will lose the overclock if you add more then 4gb ram.

[StonedRaider]

Originally Posted by PotNoodles

If that Cpu is overclocked then you will lose the overclock if you add more then 4gb ram.

I would not be adding more than 4GB since the other modules are also 4GB. And do you mean if I add 4GB to the 12GB already in the MoBo making it 16GB or if I take 4GB out making it 8GB?

In anycase i can overclock the CPU again after a CMOS reset to the same specs.