PB 300/320 System Overview

Note

1. This motherboard's built-in video card does not have a 132-column mode as stated in the manual.
 
2. Systems with "PB320" on the back stickers are 20MHz PB300 series computers.
 

Battery

3.6V DC NiCad soldered on motherboard

BIOS

2 X 64K Phoenix BIOS Chip at U40: Phoenix 1.10.1110 (latest) No chip at U40: Phoenix 1.10.1111 Phoenix 1.10.1113 (latest) No chip at U40 and ACC micro chip with SC01 at the end: Phoenix 1.10.1114 (latest) SETUP <Ctrl>-<Alt>- <S>

Bus Architecture

ISA based system bus

Cache

N/A

Chipset

 

CPU

80386SX-16 MHz 80386SX-20 MHz Keyboard Switchable <Ctrl>-<Alt>-<-> = 8 MHz <Ctrl>-<Alt>- <+> = 16/20 MHz 80387SX-16 optional 80387SX-20 optional

Interfaces

1 DB-9 Serial ports 1 DB-25 Parallel port 1 15 pin VGA port 1 Proprietary modem connector 1 15 pin game port 1 PS/2 Keyboard port 1 PS/2 Mouse port

IRQ Availability

5, 10, 11, 15 PB300/320 IRQ Availability%PB300OVW_IRQ_Availability

Network Certification

Novell Certified

RAM

1MB standard Maximum on Motherboard 4 MB Maximum Addressable 16MB LIM EMS 4.0 Compatible EMS Driver: MM.SYS on UTILITIES disk

Speaker

Piezoelectric, soldered on motherboard

UART

 

Video

Paradise built into motherboard

Video RAM

256K