Appendix B. PC Quick ID Guide
PC Quick ID Guide
Expansion Bus Identification
8 Bit ISA Bus - 8 MHz Expansion Card + Motherboard Connector
16 Bit ISA Bus - 8 MHz Expansion Card + Motherboard Connector
32 Bit EISA Bus - 8 MHz Expansion Card + Motherboard Connector
(has two rows of connectors)
VESA Local Bus 32 Bit 33 MHz Expansion Card + Motherboard Connector
PCI Bus 32 Bit 66 MHz Expansion Card + Motherboard Connector
(has opposite offset from all other cards in relation to card slot openning)
CPU Identification
There will be a part number on the CPU such as 80386SX-20
80386 indicates a 386 processor
SX indicates the sub category of the processor
20 indicates the processors speed in MHz
CPU Packages
40 Pin DIP Dual Inline Package 8088 and 8086
SMD Surface Mount Device 80286, 80386SX
PLCC Plastic Leaded Chip Carrier 80286, 80386SX
PGA Pin Grid Array 80386DX 80486 Pentiums
Keyboards
83 Key XT Keyboard
(No space between numeric keypad and QWERTY keys; no LEDs)
84 KeyAT Keyboard
(Space between numeric keypad and QWERTY keys)
101 KeyAT Enhanced Keyboard
(12 Function keys moved to top of keyboard in a row, Separate arrow keys and Delete/insert keys....)
y
Windows 95 Keyboard
Expansion Card Connectors
DB9 Female (Socket) Video MDA, CGA or EGA
DB15 (2 rows) Female (Socket) Game Port/Joystick
DB15 (3 rows) Female (Socket) Video VGA or SVGA
DB15 Female (Socket) With locking mechanism Ethernet AUI port 10Base5
DB25 Female (Sockets) Parallel / Printer Port
DB37 Female (sockets) External Floppy Drive
DB9 Male (Pins) Serial Port COM1 or Mouse
DB25 Male (Pins) Serial Port COM2
Printer Cable
PC end DB25 Male (Pins)
Printer end Centronics connector
Ethernet Card Connectors
10Base2 BNC Bayonet Navy Connector RG-58 Coax cable
10BaseT RJ45 CAT 5 Twisted Pair cable
10Base5 DB15 Female (Socket) With locking mechanism Ethernet AUI port RG-8 Coax
Video Monitors
MDA - Monochrome Display Adapter (TTL), DB9 Male Connector or RCA Jack 9", Green or Yellow phosphour
CGA - Color Graphics Adapter, DB9 Male Connector; Monitor should say "Color" or "RGB"
EGA - Enhanced Graphics Adapter, DB9 Male Connector; Monitor should say "EGA"
VGA or SVGA - Video Graphics Array or Super Video Graphics Array; DB15 Male Connector
disk drive Interfaces
ST506 or ESDI - Enhanced Small Device Interface disk drives, 34 Pin Control and 20 Pin Data Card Edge Connector
IDE Integrated Drive Electronics and EIDE Enhanced IDE disk drives, 40 Pin DIP connector
SCSI hard disk - Small Computer System Interface, 50 Pin DIP connector or Hi density connector
SCSI - Small Computer System Interface, External 50 pin Connector
Ribbon Cable Connectors
I/O Card, 10 pin DIP, Ribbon Cable Connector, COM1 or COM2
I/O Card, 16 pin DIP, Ribbon Cable Connector, Game / Joystick Port
I/O Card, 20 pin DIP, Ribbon Cable Connector, ST506 or ESDI, Data Connector
I/O Card34 pin DIPRibbon Cable ConnectorFloppy Drive or ST506/ESDI data connector
I/O Card, 40 pin DIP, Ribbon Cable Connector, IDE or EIDE Connector
I/O Card, 50 pin DIP, Ribbon Cable Connector, SCSI bus
Pin 1 of DIP connector is indicated by:
a number 1 on the silkscreen,
a square or oval pad
and / or an angle in the silkscreen outline
Pin 1 on a ribbon cable is indicated by a red line marked on one edge of the ribbon cable.
Memory Devices
DRAMDIP memoryDual Inline Package
Cache RAM, SRAM, Static RAM
BIOS Chip, 28 pin DIP
9 bit DRAM (8 data +1 parity bit), SIPP Memory, Single Inline Pin Package
9 bit DRAM (8 data +1 parity bit), 30 pin SIMM Memory, Single Inline Memory Module; 9th chip is parity bit
8 bit DRAM (8 data bits), 30 pin SIMM Memory, Single Inline Memory Module, 9th chip (parity bit) is missing
32 bit DRAM, 72 pin SIMM Memory, Single Inline Memory Module
Floppy Drive Cable
Controller 34 pin connector, drive B: then a twist in cable and drive A:
Floppies can use edge connector or 34 pin dual row connector