3540st.exe 8535/8540 Starter Disk v1.03 (zipped image)
953540st.exe 9535/9540 Starter Disk v1.00 (zipped image)
25sxstr.exe Models 25 SX, 35, 40 Advanced Diagnostics v1.30 (zipped image)
253540dg.exe Models 25 SX, 35, 40 Advanced Diagnostics v1.20 (zipped image)
40sxdiag.tg0 Model 40SX Advanced Diagnostics v1.02 (zipped image)

191-075 IBM PS/2 Model 35 SX (8535-040, 043), IBM PS/2 Model 35 LS (8535-24X)
191-199 IBM PS/2 Model 35 LS (8535-14X)
191-076 IBM PS/2 Model 40 SX (8540-040, 043, 045)

SHS84F9845 IBM PS/2 Model 35 SX, 35 LS, 35 SLC HMR
SHS84F9846 IBM PS/2 Model 35 SX, 35 LS, 35 SLC HMS
SHS84F7767 IBM PS/2 Model 40 SX and 40 SLC HMS
SHS84F7768 IBM PS/2 Model 40 SX and 40 SLC HMR

8535/8540 Planar
Riser Card
System Firmware
   ROM Images

8535/8540 Planar

Outline not available yet.

Riser Card

Two 8-bit ISA slots. No other components on the riser, aside from a resistor pack.

Outline not available yet.

System Firmware (POST & BIOS)

Firmware stored in EPROM.

ROM Images

92F1502 / 92F1503 - 04 Apr 1991, rev. 6, 2x 27C512 (U19 / U31)
04G2022 / 04G2021 - 25 Sep 1991, rev. 10, 2x 27C512 (U19 / U31)