AMD Am486 DX40

In the picture you see the 40MHz Am486 fitted onto an Octek motherboard. A fine combination for most people in late 1993 because it was affordable. Performance-wise it was fine although one could get faster systems like the DX2/66 or even the first Pentium's .

The Octek motherboard in question doesn't have VLB-slots. If you wanted fast VGA you had to invest in VLB graphics. It greatly enhanced performance and made Doom playable on these systems. However choose your parts wisely because running VLB I/O controllers at 40MHz can sometimes be troublesome.