Official GIGABYTE Forum

Can't get BIOS settings to stick with 990FXA-UD3 Rev 4


  • 4
  • 0
Can't get BIOS settings to stick with 990FXA-UD3 Rev 4
« on: September 24, 2014, 11:20:16 pm »
I'm sure I must be missing something simple here. I have been trying to set my CPU core voltage up from the stock value of 1.3375v. But it won't stay.

I increased the CPU Vcore set in BIOS (to 1.4v. )
I left the NB Core at stock (1.75v).
I have the following power saving features disabled:
-Core Performance Boost (Turbo)
-Cool & Quiet
-Core C6 State
-HPC Mode*

I save and exit BIOS and boot to Win7x64 only to find that HWinfo, Core Temp, and AMD Overdrive all show the CPU core voltage back at the stock value of 1.3375v. Oddly, CPU-Z shows it at 1.392v.
As a result, I can't get very far with multiplier increases w/o failing stress testing.

Is there a setting somewhere in my board's BIOS that I should be changing in order to get the core voltage to 'stick'?
*I was told to enable HPC after making changes.  I got that to work once, but now vcore is back to default again and my changes won't stick.

990FXA-UD3 Rev4
Asus R9-290X Direct CU II
Corsair C60 AIO Cooler
2x4 GB 1600 MHz
HAF 912


  • 1553
  • 35
Re: Can't get BIOS settings to stick with 990FXA-UD3 Rev 4
« Reply #1 on: October 02, 2014, 03:00:51 am »
See following thread please.,6262.0.html

990 FXA ud3 or ud 5 are close enough. Here is another thread.,6187.msg48974.html#msg48974
« Last Edit: October 02, 2014, 03:02:41 am by autotech »
GA-Z170X-UD5,Core i5-6600K,16 GIG,3200 ram ,2 X Corsair 240GB SATA III SSD, 500 gig HD,7 ult 64\, Rx-480 8gig\

Z97X-SOC GIGABYTE, I5 4670k, 16 gig 1600 ram, 240 gig sata3 SSD,1x 500HD/ R9 280x, corsair 650 RM PSU

GA-Z97X-Gaming G1,850 corsair,,DDR4 3200,240SSd,6950 video,850EVA