Undervolting Apps

[Elmo Putney]

I recently discovered a few very useful dynamic undervolting apps, I didn't really know that you could do this outside of the Bios.

I got my BE2300 running at 0.75 volts @ 1000Mhz during SD live TV, 0.9 v @ 1600 for HD and 1.05v @ 1900 for anything above HD cpu usage.

I don't know how much it's taken my power consumption down but it runs a few degrees cooler. The only thing I found is that 1/2 step multiplyers are to be avoided for stability.

Anyway thought it might be of interest to others, the app I had most sucess with was crystalcpuid, though I tried rmclock but gave up due to stability issues but that was before I knew about the half step multipliers, the only other one I looked at was k10stat...but it only supports k10 amd architecture.

[johnsonx42]

I use rmclock with good success, particularly on older systems where the default windows vista/7 power management doesn't work. Yes, there have been configurations where I had some stability issues, but my current setup is perfectly stable... it might have been half-step multipliers, I don't know.

edit: oh, I just looked at my RMClock config and remembered one thing - rmclock allows an FID of 4.0, which some AMD CPU's do not care for; the 'normal' minimum FID is 5.0. So I simply disabled the 4.0 setting.

[mian]

AMD has their own utility called Overdrive so you change those settings outside the bios. I've found it useful.