Official GIGABYTE Forum

GA-890GPA-UD3H & AMD 1090T Overclocking


  • 57
  • 1
GA-890GPA-UD3H & AMD 1090T Overclocking
« on: July 03, 2012, 08:35:28 pm »
I have a bit of a problem with my system (see sig below). I have been able to get it stable at 4 GHZ using a X20 multiplier and a Vcore of 1.408 volts. Strangely, when I DROP Vcore by 1 step to 1.376 volts it runs OK until I try running Prime95.

Then Vcore goes to 1.536 volts and the core temperature climbs above  50 degrees C. Clearly unsustainable.

This seems very strange. I stepped up Vcore a step at a time. All resulted in predictable Vcore - EXCEPT 4th step to 1.376 volts.

Does this seem to be a BIOS problem? Do other people see this effect? Any explanations?

I will run at 5 steeps (1.408 V) but would like to drop down a notch. Suggestions?
GA-890GPA-UD3H Rev 2.1 (BIOS FF)
AMD X6 1090T o/c to 4.0 GHz - W Hyper 212 EVO cooler
Win 7 HP 64-bit SP1
(2) 4GB G.Skill PC12800 @ 1333 MHz
Corsair TX850 PS & 850D Case
OCZ Vertex 4 SSD & Hitachi HDT722525DLA380 250GB SATA HDs
ASUS GTX 560 TI (factory O/C'ed), Two 22" Monitors

Hippie Tech

Re: GA-890GPA-UD3H & AMD 1090T Overclocking
« Reply #1 on: July 05, 2012, 12:11:47 pm »
Does your board have Load line control ?

If so, set it to 'norm' and be sure performance boost is disabled.

I'll be surprised if that chip wil do 4ghz on less than 1.4v....  but it doesn't hurt that much to try. heh..

gl :)