IBM 51xx PC Family Computers

This web site is not intended as an introduction to the IBM 51xx PC family of computers.
Instead, this web site is intended to be a reference for computer-savvy people who are already familiar with the IBM 51xx PC family of computers.
This web site contains information that ranges from basic to very technical.

For queries or assistance, I suggest that you seek that at the Vintage Computer Forums.


Manuals
 
General
IBM 4860/5140/5150/5155/5160/5162/5170
IBM Options and Adapters
IBM Hardware Maintenance Service
IBM Hardware Maintenance Reference
 
4860 =  PCjr
5140 =  PC Convertible
5150 =  PC
5151 =  Monochrome Display
5152 =  Graphics Printer
5153 =  Color Display                      ( display for CGA )
5154 =  Enhanced Color Display      ( display for EGA or CGA )
5155 =  Portable PC                        ( actually a portable XT )
5160 =  XT
5161 =  Expansion Unit
5162 =  XT Model 286         ( XT-286 ) ( an AT class system, not XT )
5170 =  AT


IBM 5150  (IBM PC)  
   
Documentation Power Measurements
Motherboard Switch/Jumper Settings Minimum Diagnostic Configuration
Known Problems/Issues Test of SW1 and SW2 via BASIC
Motherboard Revisions Using an AT-Class Keyboard
BIOS Revisions VGA Cards
Some Expansion Cards and Options Disk Cover Plate
Memory Map of the 640 KB to 1 MB Area Substituting the U33 ROM
RAM Information 10/27/82 BIOS - Problem of less than 4 banks of RAM
Motherboard Diagrams Early Versions
Cassette BASIC  
POST and Initialisation  
   


IBM 5151

Documentation
Video Cable
CRT Heater
IBM 5152

Documentation
IBM 5153

Documentation
IBM 5154

Documentation
Known Problems/Issues


IBM 5155  (IBM Portable PC)  
   
Documentation Power Measurements
Motherboard Switch/Jumper Settings Minimum Diagnostic Configuration
Known Problems/Issues Test of SW1 via BASIC
Motherboard Revisions Expansion Slot 8
BIOS Revisions Photo of Inside
Some Expansion Cards and Options Connection of CRT Display Unit to Video Card
Memory Map of the 640 KB to 1 MB Area CRT Shield Removal
RAM Information Power Supply
Motherboard Diagrams  
Cassette BASIC  
POST and Initialisation  
   


IBM 5160  (IBM XT)  
   
Documentation Power Measurements
Motherboard Switch/Jumper Settings Minimum Diagnostic Configuration
Known Problems/Issues Test of SW1 via BASIC
Motherboard Revisions Using an AT-Class Keyboard
BIOS Revisions VGA Cards
Some Expansion Cards and Options Expansion Slot 8
Memory Map of the 640 KB to 1 MB Area Significant Differences to the IBM 5150
RAM Information IBM/Xebec HDD Controllers Supplied
Motherboard Diagrams Hard Drive Cabling
Cassette BASIC  
POST and Initialisation  
   


IBM 5161

Documentation
Cable
IBM 5162  (IBM XT Model 286)

Documentation Battery
Known Problems/Issues Photos
BIOS Revisions  
Motherboard Diagrams  


IBM 5170  (IBM AT)  
   
Documentation SETUP Procedure
Motherboard Switch/Jumper Settings Hard Drive Type Number
Known Problems/Issues Hard Drive Cabling
Motherboard Revisions Some On-Screen POST Errors
BIOS Revisions Battery
Some Expansion Cards and Options Support for 3.5" Diskettes
Memory Map of the 640 KB to 1 MB Area Failures of the CMI 6426 Hard Drive
RAM Information  
Motherboard Diagrams  
Cassette BASIC  
   


ROMs  
   
Images of Various ROMs  
Images of BIOS ROMs for IBM 5150/5155/5160/5162/5170  
Images of BIOS ROMs for Certain XT Clones  
Supersoft/Landmark Diagnostic ROMs for IBM 5150/5155/5160/5170  
   


Miscellaneous  
   
DOS Programs Commonly Failing Electronic Components (in Old Computers)
RTC Programs Changes to the ST-506/ST-412 Interface
MDA / CGA / EGA Micro Solutions Backpack CD-ROM Drive
BIOS Video Modes Transferring Files From a Modern PC to an Old PC
POST Cards History of 5150/5155/5160/5170 Motherboard Failure at the VCF
Resources at Other Internet Sites Floppy Crossover Cable - Wiring