Tested. Working perfect. See photo. With CPU i486DX2 66MHz, 16Mb FPM RAM & Cooler
 
Chipset UMC UM8498/8496 (486 VL Chipset "Super Energy Star Green")
Socket Socket 3 (PGA237)
FSB speeds 20MHz25MHz33MHz40MHz50MHz
Form factor Baby AT (max 220 x 330 mm)
Dimensions 220mm x 260mm
Cache 64KB128KB256KB512KB1MB
Max RAM size 128MB
RAM types 30-pin SIMM72-pin FPM
PSU connector AT (6-pin P8 + 6-pin P9)
Also known as
Chicony 001-00498-A02
I/O ports
1x AT Keyboard
Expansion slots
7x 16-bit ISA
3x 32-bit VLB
1x 8-bit ISA