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Overclocking Phenom ii 1055t on Asus M4A78LT-M

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May 19, 2012 4:14:46 PM

i, I'm just wondering if anyone can give me some baseline settings to overclock to about 3.4?

My system is,

AMD Phenom ii 1055t
Asus M4A78LT-M
8GB DDR3 1333 10600 Ram
ATI Radeon HD 6900
Liquid cooling

I know I can only clock using the base frequency, but I never seem to be able to get past BIOS, is anybody experienced with using this chip/board combination?
a b K Overclocking
May 20, 2012 8:24:22 PM

I think your multiplier is 14 so set your cpu to 14x243 or 242 @ 1.48750v

Just make sure to watch your CPU temperatures with a program like HWmonitor or CoreTemp. The maximum temperature for the Phenom II is 62*C and depending on what you read the max core voltage ranges from 1.5-1.6 one air and 1.7 on water cooling.

I have a 1065t running at 4ghz (stock 2.9) @ 1.5Vcore and 1.3250 CPU/NB.
Ambient temperatures right now are 30*C and it's running at 34*C @ idle, lol its much better at night when it's cooled off or I have the AC cranked way up. (I also have a decent cooler) (It runs more like 18*C when its cooler out.)
a b À AMD
a b K Overclocking
May 25, 2012 11:05:11 PM

I'm not sure what you mean by not getting "past BIOS", but I'm running my 1045t @ 3.4 with these settings:


Frequency: 3401.6
ref*multi: 252*13.5
CPU voltage: 1.344 @ full load
CPU-NB: auto
nb frequency: 2519.8
NB volts: auto
RAM: 16GB 1343 9-9-9-24 1.5v
Motherboard: Gigabyte 990FXA-UD3 rev 1.1
Cooling: Coolermaster Hyper TX3 (w/2 92mm fans) +5 120mm case fans.
OS: 7 64-bit

I had to actually undervolt my chip to keep heat under control with my small-ish HSF.

You may need higher voltages or be able to operate at lower voltages. It will depend on your particular chip and other equipment.

I used a negative voltage offset to achieve my target voltage under load, while still using power saving features that drop the voltage even further when not loaded.

!