Hence I think locked voltage is a no go.Ĭhanging core voltage in MSI Afterburner has no effect whatsoever unless I force constant voltage, which of course I do not want to do. Anyway, Sapphire offers regular updates of the TRIXX software.
SAPPHIRE TRIXX VOLTAGE SETTINGS SOFTWARE
At the default load voltage of 1.087 V the difference vs default idle 0.806 V is about 35 W, and if I increase the voltage further this meaningless waste of energy will just grow. The settings menu allows you still more settings, if TRIXX should load with or without set clock frequencies minimized at Windows startup, but the TRIXX software crashed unfortunately with the message Sapphire TRIXX overclocking utility has stopped working. This works, but it has the downside that the voltage does not go down when the GPU is idle. I tried locking the voltage to avoid these jumps during load.
SAPPHIRE TRIXX VOLTAGE SETTINGS INSTALL
On my PC (fresh windows 7 install on clean hard drive) it seems to take CCC a really long time to load, and i think the Trixx icon shows up first in the taskbar. The lower I set PL the lower the low voltage is, so at PL = -20% I get huge jumps in voltage. Doing some more research on forums it sounds like CCC needs to load before Trixx in order for Trixx's setting to function. Those that want to squeeze higher overclocks now have the ability to overvolt both 300 series and Fury series.
Sapphire Technologies’ in-house utility Sapphire TriXX has been updated to version 5.2.1 bringing some very interesting features for 300 series and Radeon Fury video card users. However, if I lower the power limit the core voltage starts jumping between the set voltage (which is higher than the max voltage at PL=+20%) and a lower value synchronized with the jumps in frequency. Sapphire TriXX 5.2.1 Now Supports HBM Overclocking. If I change the core voltage to say 1.1 V, nothing happens if I have Power limit (PL) +20%. So Power limit to the resque: just moving the slider to +20% in Trixx I get a steady 1100 MHz and a steady voltage of 1.087 V. If I set the core clock to 1100 MHz without touching anything else the card "throttles" and jumps between this target and a lower frequency. Under load it runs at 950 MHz at a voltage of 1.087 V. With Power limit 0% and not touching the core voltage I have an idle voltage of 0.806 V giving me a total power consumption of my system of about 75 W at a core clock of 300 MHz. I want the voltage to be low (0.8 V) when idle and at a magnitude of my choice during load (say 1.2 V). It has a second overclocking bios that can be activated by pushing in a button, and this is what I am using. The card in question is the Sapphire Vapor-X HD7950 equipped with two 8 pins contacts. I have a problem getting the core voltage I want at both idle and load state.