HP Vectra User Manual

SECTION 10. MEMORY EXPANSION
CARDS
Parity and Refresh. . . . .. . . . . . .. . .. .. . .. . . . . .. .. . . .. . . .. 115
Clock Cycles. .. . . .. . . . . .. . . . . . .. . .. . .. . .. . .. .. . . . . . .. . .. 116
Switches. . . . . . . . . .. . . . .. . . . . . . .. . .. . .. .. .. . . .. .. . . . .. . .. 116
SECTION 11. SERIAL/PARALLEL CARD
Serial Portion of the Card . . .. . .. . . ... . .. . .. . .. . . .. . . .. 122
Serial
Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 122
Serial Port Interface
to the System. . . . . . . . . . . . . . . . . . . . . . . . . .. 123
Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 124
Serial Port Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 133
Parallel Portion of the Card . . . . .. ... . . .. .. . .. . .. . . . ... 134
Parallel Jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 134
Parallel Port Interface to the System. . . . . . . . . . . . . . . . . . . . . . . .. 135
Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 137
Parallel Port
Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 139
SECTION 12. SCHEMATICS
Processor Board. . . . . . . .. . . . .. . . . .. .. .. . .. .. . .. . .. . . . ... 142
Processor Extension Card. .. . . . .. . ... . .. . .. . .. . .. . . . ... 162
Multi-Mode Video Adapter Card. .. .. .. . . .. .. . . . . . .. .. 167
1.2 Mb Memory Expansion Card. .. . . . .. . .. . .. . .. . . . .. 172
Serial/Parallel Adapter Card. .. . .. .. . . . .. .. . . .. . .. . . ... 176
Appendix A
Keyboards and Character Set
177
Glossary
Bibliography
Index
x

HP Vectra Specifications

General

Processor	Intel Pentium
RAM	Up to 128 MB
Storage	HDD (capacity varies by model)
Operating System	Windows 95
Graphics	Integrated
Ports	Serial, Parallel
Expansion Slots	ISA, PCI