Thank you very much for the detailed info. I'm going to plug-and-pray. =)

I'm curious, what benefits do OLB have over ISA? How about compare/contrast OLB vs EISA for performance? Obviously, there were significantly more card options for EISA. It would be neat to see some OLB setups. Were the OLB expansion card options primarily for graphics and SCSI?

OLB is similar to VLB but not widespread.
I've seen some pictures of ET4000AX on OLB, but no W32's.

We've got a Tekram cache controller for OLB, but no graphics card. Compared to the VL version it has more discrete parts on it.
However, the controller uses low speed PIO to communicate with the HDD, so the benefits are limited to transfers from cache to host CPU.

Fascinating. I'm surprised more people aren't collecting OLB cards and motherboards. Usually obscure computer parts things like MCA and OLB arouse curiosity. Nowhere is it more prevalent than with obscure or rare CPUs and graphic cards though.