I got my new AMD machine two days ago.
Processor : AMD Phenom X2 550, SN: 9A20921H90551. I repeat 9A20921H90551.
Motherboard: Asus M4A7-E, Revision: 1.01G, You can find the revision printed on the motherboard.
I flashed the BIOS to the latest version, which is 1601 - downloaded it from Asus website.
Went into the BIOS setup and set the follwing
Advanced clock caliberation : AUTO
Unleashing mode: ENABLED
That was it. Now my X2 has become an X4 . I am on Ubuntu 904, and here is the system monitor showing the four cores.
I will get a better cooler than the OEM cooler and then start using the system. Will post an update then.
The following youtube video(the last one in the 3 part series) showed that this motherboard(revision no not mentioned) does not hold the unlocking changes when the system is powered off. But in my case it just does fine - as fine as the Gigabyte boards do. I guess its the BIOS version that did the trick.
Edited by avi_503 - 10/17/09 at 12:39pm