# Memory Buffers Voltage (VDDQ)
Once you have found your video card?s memory?s maximum clocks from an MVDDC increase, you may turn your attention to the next available memory voltage setting: VDDQ.
Now this setting seems to be a little strange and I have not found any consistent results with it. But it seems like the most likely thing that needs to be done here is to decrease the voltage the memory buffers receive. I suggest you keep 3D View open, and begin lowering VDDQ. Pause for at least a minute between each decrease and then proceed. Once you start seeing artifacts or your computer hangs, you know you have found the limit of your VDDQ. You may try increasing your memory clocks again just to see if you have gained anything from lowering VDDQ, but you will most likely not see any kind of increase in overclockability of your RAM.
Lowering this setting helps reduce the amount of heat generated by your video card as well as reduce the amount of power required to operate your card (the decrease in temperature maybe enough to allow your memory for a few more MHz).
An alternative would be to keep VDDQ similar to MVDDC or even keep it around VDDC+/- 0.010v. You may test both to see which suits your needs better (it might be that a lower VDDQ and a higher memory clock maybe beneficial to a higher benchmark score, rather than a more stable, lower, memory clock).
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