RAM Frequency

[Blackthorn]

I'm not well versed in the technical sides of running a computer, so forgive any naivety in my question. My RAM, 3GB Corsair XMS2, is said to run at 675mhz, yet when I check my RAM on CPU-Z, two of them are said to be 400mhz, and the other 333mhz. Is there a way to increase the frequency or is this normal?

 

[Barney Fife]

Yes. In the BIOS, if your RAMS are set to auto, you may need to set them manually to their appropriate frequency settings.

Good Luck.

 

[Blackthorn]

I've just done some research. Didn't know about actual clock rate. I'm now overclocked and running nicely.

 

[Barney Fife]

If your RAMS are high-performing modules, you probably won't need to raise clock/voltage of your RAMS. Set them at their default frequency or 400MHz (800MHz) if your MB doesn't support higher than 400MHz.
When OCing CPU, your RAMs will clock higher with CPU. If RAMS clock higher than recommended; either, raise voltage (Which I would strongly advise you against it), come off of the CPU/RAM multiplier, or, select a ram frequency lower than SPD.
Do more research, it's fun to play with BIOS. :bounce:

Good Luck.

 

[Asus]

Be careful what frequency you are looking at before you mess with the setting. Could be the rated clock speed or the actual clock speed.

The 675MHz you say it is supposed to be at is probably the rated speed which is double that of the actual speed. The bios and CPU-Z will most likely list the actual speed which is HALF the rated. And memory sticks can't run at different speeds when working together so you are probably reading the SPD value in CPU-Z and not what they ARE running at which would be in the MEMORY tab of CPU-Z.

 

[Barney Fife]

Be careful what frequency you are looking at before you mess with the setting. Could be the rated clock speed or the actual clock speed.

The 675MHz you say it is supposed to be at is probably the rated speed which is double that of the actual speed. The bios and CPU-Z will most likely list the actual speed which is HALF the rated. And memory sticks can't run at different speeds when working together so you are probably reading the SPD value in CPU-Z and not what they ARE running at which would be in the MEMORY tab of CPU-Z.

Yes yes and yes: Everything Asus just mumbled is all true.
You must understand everything about RAM vs. CPU vs. clock multipliers vs. HTT, and how they intermingle.

Do the research, become a member of one of those OC forums. Learning from others' mistakes is always cheap.

Good Luck.