TESTED/WORKING perfect. With CPU P4 3.0 GHz & I/O shield
 
Chipset SiS 655FX
Socket Socket 478 (mPGA478)
FSB speeds 400MHz533MHz800MHz
Form factor ATX 
Dimensions 305mm x 245mm
Cache None/Integrated in the CPU
Max RAM size 4GB
RAM type DDR UDIMM
PSU connector ATX 1.x (20-pin ATX)ATX P4 connector 12v (4-pin P4)
I/O ports
1x Floppy interface
1x Gameport
2x IDE interface
1x PS/2 keyboard
1x PS/2 mouse
1x Parallel
1x RJ-45 LAN
1x S/PDIF
2x SATA I
1x Serial
6x USB 2.0
Expansion slots
1x 1.5V AGP
5x 32-bit PCI