Tested. Working perfect. See photo. With CPU Cyrix MII-300GP, 128MB RAM, cooler & I/O shieldOnboard VGA, onboard Sound, USB, PS/2
 
Chipset SiS 5598 (Jedi Pentium PCI/ISA Chipset)
Socket Socket 7 (PGA321)
FSB speeds 50MHz60MHz66MHz75MHz
Form factor MicroATX (max 244 x 244 mm)
Cache 256KB512KB
Max RAM size 256MB
RAM type SDR UDIMM
PSU connector ATX 1.x (20-pin ATX)
I/O ports
1x Floppy interface
1x Gameport
2x IDE interface
1x PS/2 keyboard
1x PS/2 mouse
1x Parallel
2x Serial
2x USB 1.x
1x VGA
Expansion slots
2x 16-bit ISA
3x 32-bit PCI