Have hard time beliving you had 133MHz 386, must have been a 486, I had a 40 MHz 386 with coprocessor 16 m ram and 256k cache, that was a fast for being a 386

I could run w98 on it !
This 486 100Mhz (50Mhz bus) is good and AMD 133MHz 486 would be sligtly faster, AMD 120 MHz (33Mhz bus)) would be about the same as the 100 DX4.
What more to do ? It has 2 compact floash hard drives,64 mb RAM, 3½" floppy, 5 and a quarter inch 1,2 Mb floppy(it can read and write to a 360k floppy but not format them,
well it can but they will not work on a 360k drive only a 1.2 drive) , a CD writer/reader, Sound Blaster (with 2mb RAM on it ! ) and an ethernet card. Three OSs, FreeDos 1.3 RC4, Windows 95 with LiteStep shell and DSL(Damn Small Linux) using GRUB I multiboot betwix them all

On my wish list for it is a PCI riser card as it has jumper to change ISA/PCI also there was 32 mb RAMs, but where,this IBM Machine type 6482 XVI can hold 128 mb RAM.
Riser Card PCI (6484) FRU 82G3555, 72-Pin Memory Module,32MB (70ns) FRU 73G3135.