- Joined
- Sep 16, 2003
- Location
- Knoxville, TN
I figured this deserved a post in of itself due to my three-ring-circus trying to get Thuban to overclock. So first off:
The Problem:
Because AMD changed the way the p-states (ie power states) of Thuban and thus there are a variety of motherboards out there that overclock well without issue and others that do not and are horribly unreliable.
Most Phenom II chips have 2 power saving states and one full performance mode. Thuban has 3 and a boost mode. Why is this important? Boost causes stability issues because it forces several cores to either current multiplier +2 or to their respective boost state (ie 3.6ghz @ 1.3v for me) at what feel like random intervals.
The Fix:
Turn cool and quiet off, turn turbo off.... IF your motherboard has that option. There are many out there like myself that do not have that option. For those of us stability goes into the crapper and effectively forces stock clocks. This is especially true for those of us who are not using AMD chipsets and cannot use Overdrive.
The Work Around:
Most people (I only found out about this recently) are using programs like K10STAT and PhenomMsrTweaker to circumvent Thuban's pstates and manually overclock the chip in windows.
How Does it work?:
First you would go into your bios; set everything as default; turn cool and quiet off if you have that option and download one of the formentioned programs:
Step 1:
PhenomMsrTweaker: http://phenommsrtweake.sourceforge.net/
K10STAT: http://sites.google.com/site/k10stat/
Step 2: ????
Step 3: Profit!
As long as you can boot to windows; even if your motherboard doesn't "support" Thuban you can force what clocks you want using this program. If anyone is having stability issues with Thuban I HIGHLY reccomend you give it a shot:
The Problem:
Because AMD changed the way the p-states (ie power states) of Thuban and thus there are a variety of motherboards out there that overclock well without issue and others that do not and are horribly unreliable.
Most Phenom II chips have 2 power saving states and one full performance mode. Thuban has 3 and a boost mode. Why is this important? Boost causes stability issues because it forces several cores to either current multiplier +2 or to their respective boost state (ie 3.6ghz @ 1.3v for me) at what feel like random intervals.
The Fix:
Turn cool and quiet off, turn turbo off.... IF your motherboard has that option. There are many out there like myself that do not have that option. For those of us stability goes into the crapper and effectively forces stock clocks. This is especially true for those of us who are not using AMD chipsets and cannot use Overdrive.
The Work Around:
Most people (I only found out about this recently) are using programs like K10STAT and PhenomMsrTweaker to circumvent Thuban's pstates and manually overclock the chip in windows.
How Does it work?:
First you would go into your bios; set everything as default; turn cool and quiet off if you have that option and download one of the formentioned programs:
Step 1:
PhenomMsrTweaker: http://phenommsrtweake.sourceforge.net/
K10STAT: http://sites.google.com/site/k10stat/
Step 2: ????
Step 3: Profit!
As long as you can boot to windows; even if your motherboard doesn't "support" Thuban you can force what clocks you want using this program. If anyone is having stability issues with Thuban I HIGHLY reccomend you give it a shot:
