PB600 System Overview

Battery A 3V Lithium battery is soldered on-board at location BT1.
BIOS Flash EEPROM - Phoenix BIOS
Bus Architecture PCI 2.0/ISA based system bus
Cache 16KB L1 (Internal) write-back Cache (integrated in the CPU)
256KB L2 (External) write-through with write buffers cache soldered on the motherboard
Chipset PCI064B Super I/O controller
VL82C593 controller
CPU Pentium 75 MHz Pentium 120 MHz
Pentium 90 MHz Pentium 133 MHz
Pentium 100 MHz

Uses Type 5 CPU Zero Insertion Force (ZIF) CPU Socket

Interfaces 1 DB-9 Serial ports for COM1
1 DB-25 Parallel port
1 PS/2 Keyboard port
1 PS/2 Mouse port
1 15 pin VGA
IRQ Availability 5, 10,11, 15

The available IRQs may vary depending on the system configurations. When determining available IRQs always check for printers, sound cards, CD-ROM drives and any other devices in the system.

See Also: IRQ AVAILABILITY

Network Certification Novell Workstation: #W-2011
RAM 0MB SMT, 8MB installed standard/136M maximum.
Uses 1/2/4/8/16/32 MB 72-pin SIMMs, ó 70ns
Speaker On-board piezo speaker.
UART Two 16C550A Compatible chips
Video Built-in, Cirrus Logic® Alpine GD5430 video chipset.
Video RAM Upgradable to 2 MB

IRQ Availability Note The Bolded lines are usually free IRQs except when it is used by the indicated or added devices.
IRQ Description Used Handled By
0
 Timer Click Yes Default Handles
1
 Keyboard Yes Default Handles
2
 Second 8259A Yes BIOS
3
 COM2 or COM4 COM2 BIOS
4
 COM1 or COM3 COM1 BIOS
5
 LPT2 or Sound Card (If present) Yes BIOS
6
 Floppy Disk Yes Default Handlers
7
 LPT1 Yes System Area
8
 Real-Time Clock Yes Default Handlers
9
 Redirected IRQ2 Yes BIOS
10
 Sound Card (If present) Yes BIOS
11
 (Reserved) Free *1 BIOS
12
 PS/2 Mouse Yes Default Handles
13
 Math Co-processor (If present) Yes BIOS
14
 Fixed Disk Yes Default Handlers
15
 Secondary Fixed Disk (If present) Free *2 Default Handlers
*1 If a PBTV4 card is installed then IRQ 11 is used.
*2 If an IDE CD-ROM is used then IRQ 15 is used.