Tested. Working perfect. See photo. With CPU IBM486DX2 66MHz, 16MB FPM RAM & Heatsink
 
Chipset UMC UM8498/8496 (486 VL Chipset "Super Energy Star Green")
Socket Socket 3 (PGA237)
FSB speeds 25MHz33MHz40MHz50MHz
Form factor Baby AT (max 220 x 330 mm)
Dimensions 220mm x 250mm
Release date 1994
Cache 0bytes
Max RAM size 64MB
RAM type 72-pin FPM
PSU connector AT (6-pin P8 + 6-pin P9)
Also known as PowerTech MB 459 UMC 486 SUPER DEEP GREEN PC
I/O ports
1x AT Keyboard
Expansion slots
6x 16-bit ISA