Just finished putting together my first computer. Was a snap! But, I'm having trouble with installing Window 7 Home Premium 64 bit (System Builder).
Motherboard: Asus m4A785TD-V EVO (build date of 6/28/2010)
CPU: AMD Athlon 2 x3 445 Rana
HDD: WD Caviar Black 500 MB
DVD: Samsung burner
RAM: Patriot DDR3 1333 2x 2GB (4 GB total)
It powered up on the first go, which made me happy.
First, I went into the BIOS, and just set the time and date. I also went in and was able to unlock the 4th core; I now have a Phenom 2 x4 B45 with the L3 Cache at 6 MB. I'm more happy, now!
Then, I restarted (no problems) and then plopped in the Windows 7 Install disk. The first time, it kept re-booting. So, I went in to BIOS and changed the boot sequence (made the DVD the second option). This time around, it didn't reboot. It started to load, and stopped. No HDD, no DVD activity.
Did I do something wrong? I went by the Asus MB manual as best as I could; it seems you can do this.
Start again, installing Win7 before you try unlocking your fourth core, it may not be stable so get the system up and running 'normally' before trying to overclock or unlock your chip,
Hope this helps,