[Unknown] PT386/20
Chipset
Sockets 
FSB speed 20MHz
Form factorBaby AT (max 220 x 330 mm)
Dimensions350mm x 220mm
Cache
None/Integrated in the CPU
Max RAM size
Empty
RAM type 30-pin SIMM
PSU connector
Also known as
- Unknown PT-386/20
I/O ports1x
AT Keyboard
Expansion slots5x
16-bit ISA
1x
8-bit ISA
Last updated 2026-07-12T20:00:38Z
Board info score is 6.7/10
Chips
-> Chipset part
CHIPS and Technologies 82C301 (Bus Controller)
CHIPS and Technologies 82C302
CHIPS and Technologies 82C303 (Address Buffer (High))
CHIPS and Technologies 82C304 (Address Buffer (Low))
CHIPS and Technologies 82C305 (Data Buffer)
CHIPS and Technologies 82C306 (Control Signal Buffer)
(multiple brand) 82C206 (DMA, IRQ, timer and RTC ctrl.)
-> Human Interface
1 BIOS file available
Phoenix - 1 entry
POST string
Note
Core Ver.
BIOS Ver.
Logs
1 driver available
Name
Version
Arch
OS support
Size
Filename
No board documents available
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1995-11-30
File
Logs
Chip
Release date
1990
File
Logs
Chip
Release date
1996-08-09
File
Logs
Chip
Release date
1996-05-15
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
1995-11-22
File
Logs
Chip
Release date
1994-07
File
Logs
Chip
Release date
1996-01
File
Logs
Image 1 of 2 (jaska)
Image 2 of 2 (jaska)
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