Try to raise the voltage... if you are running the latest kernel-power-settings (i.e. 0.7) then it would look something like this. 1. First you need to make your own settings file: kernel-config save my-settings It will tell you the place where it got saved. 2. Then open it with leafpad (might need to install leafpad): leafpad /home/user/.kernel/my-settings 3. Edit your settings to your likening: "250:20,180" try edit it to something higher.. like "250:24,180" The kernel will go back to the default if it should reboot so it is no problems. To set it up permanent you need to "kernel-config setdefault my-settings". This i would wait with at least a week with stable running.