EduQuest Thirty Photo
Based on content by William R. Walsh (original HERE). Modified by Major Tom.
CPU: IBM 386SLC 25 MHz (soldered)
RAM: 4 MB soldered
Despite its name, the 386SLC is a 486SX from a software perspective.
It's actually an interesting mix of technologies: you have the 16/24
bit data and address buses from the 386SX, a 486SX compatible
instruction set with some enhancements by IBM, a few power saving
features and some extra cache over that of a standard Intel 486 CPU.
IBM had at one time a license to produce and modify any Intel
microprocessor design. They did so for many years, up until at least
the early Pentium era.
EduQuest Thirty Planar
1 MB - FRU P/N 60G0829, P/N 60G0828
4 MB - FRU P/N 60G0860, P/N 60G0956
D4 Green LED
OSC1 14.318 MHz osc (RTC)
OSC2 50.000 MHz osc (CPU)
OSC3 16.000 MHz osc (?)
OSC4 24.000 MHz osc (FDC?)
U32 ROM BIOS
U33 ROM DOS
U47 ROM DISK
X1 12.000 MHz xtal
Firmware stored in EPROM (U32).
The planar has additional EPROMs containing DOS (U33) and additional software (U47).
All ROMs are 27C010 (TI 27C010A-15) or compatible.
ROM BIOS (U32)
A386_101_06A - ROM BIOS A386 1.01 _06A_ (label text)
ROM DOS (U33)
ROM_DOS_01 - ROM DOS 01 (label text)
ROM DISK (U47)
ROM_DISK_01a - U47 ROM DISK 01a (label text)