Gigabyte P-Tuner

GIGABYTE's software to control the power supply is called P-Tuner. We tested version 0.2 Beta from the GIGABYTE website. If you search for it, look under "Thermal" - that's where their PSU products are listed.
When you connect the USB cable to your PC, Windows will detect a HID (Human Interface Device), to complete installation you will need to install the 35 MB software. Please note that the PSU implements a dual EEPROM to store its settings. This means that once you have set your parameters you can use the PSU on any other PC with those settings or uninstall the GIGABYTE software.


The main window shows all important monitoring information at a glance. From top to bottom you can see: current power draw (Watts), peak power draw, voltages, current (Amps), peak current, PSU fan speed and System Fan speed if you have a fan connected to the fan output of the PSU. Also visible are the PSU internal temperature and up to four readings from the external sensors you can connect.
On the screenshot above you can also see red alerts at Total Wattage and +12V1 Current. These can be set to go off at a limit you choose.
On the bottom of the window you have three buttons that take you to the screens "Main", "Configure", "Alarms". While the sensor readings are generally correct they are certainly not lab grade accuracy. Especially the current/wattage readings are of lesser accuracy.

Configuration Screen

In the configuration section you can control fan speeds and voltage output.


The fan speed can be adjusted nicely to fit your usage profile. You can click in the graph to select minimum voltage and at which temperature the fan speed starts ramping up. Please note that you can't set very complex curves. The red line starts at a voltage you can select between 4V and 12V, then goes horizontally to a temperature between 25°C and 75°C. At this point it will go up to hit the point 12V / 75°C.


A very nice feature is that you can adjust the voltage output level yourself. The available range is somewhat limited though to be good enough for real hardcore overclockers. Also you should know that none of the readings in GIGABYTE P-Tuner are 100% correct. With the voltage output settings I saw discrepancies of up to 0.3V. Changing one output also affects the voltage of another output. Still, this is a nice feature, great for control freaks.

Alarms Screen

On the Alarms page you can define when an alarm will be triggered. As far as I found out this will only make a button in the P-Tuner Monitoring Section blink red. There will be no audible or visual alarm outside of the application (or I couldn't find how to enable it).