Thanks for the link

Interesting part is the pin count on the socket AM3(not the chip pin count,but the socket "hole" count):
MSI 790FX-GD70

* AMD 790FX/SB750 Chipset
* Supports AMD Socket AM3 (941-pin) Phenom II / Athlon processor
* 4 x PCI-E x16 slots support ATI CrossFireX Technology
* Supports four dual-channel DDR3 1333 memory slots up to 16GB
* Utilizes DrMOS chipset
* APS(Active Phase Switching)
* Dual 10/100/1000 Mb/s LAN Ports
* High-quality 7.1-channel audio
* 8 SATAII and 1 eSATA hard disk interface, support RAID 0/1/0+1/5
* 2 PCI-E x1, 2 PCI slots
* 12 x USB 2.0, 1 x IEEE1394a