- Joined
- Dec 14, 2010
I have an interesting issue I've run into here.
Recently picked up an Asus M4A79 Deluxe motherboard, and during testing I noticed that it was applying much more voltage to the CPU than necessary as well as running very hot at around 46-48°C just sitting in the BIOS. As in, the VID of this chip is 1.35v, but the board is actually supplying it with 1.46-1.47v (fluctuating) when I have the voltage set to Auto and the CPU speed at idle.
I manually set it to 1.35v then thinking maybe it was an issue with the Auto setting, and still got 1.46-1.47v.
Then, I set it to 1.3v in the BIOS and ended up with 1.44v.
Finally lowered it to 1.225v and ended up with 1.34v.
So, it's got a .11v voltage increase/over-volt going on regardless of what setting is input to the BIOS.
Now, the CPU_OV jumper is set in normal mode, so it shouldn't be applying any additional voltage, and this board doesn't have an LLC (Load-Line Calibration) option in the BIOS. I can't figure out why the output voltage would be so high above the normal/default VID.
Anyone have any ideas?
Recently picked up an Asus M4A79 Deluxe motherboard, and during testing I noticed that it was applying much more voltage to the CPU than necessary as well as running very hot at around 46-48°C just sitting in the BIOS. As in, the VID of this chip is 1.35v, but the board is actually supplying it with 1.46-1.47v (fluctuating) when I have the voltage set to Auto and the CPU speed at idle.
I manually set it to 1.35v then thinking maybe it was an issue with the Auto setting, and still got 1.46-1.47v.
Then, I set it to 1.3v in the BIOS and ended up with 1.44v.
Finally lowered it to 1.225v and ended up with 1.34v.
So, it's got a .11v voltage increase/over-volt going on regardless of what setting is input to the BIOS.
Now, the CPU_OV jumper is set in normal mode, so it shouldn't be applying any additional voltage, and this board doesn't have an LLC (Load-Line Calibration) option in the BIOS. I can't figure out why the output voltage would be so high above the normal/default VID.
Anyone have any ideas?
Last edited: