HP B160L Manual do Utilizador Página 143

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HP 9000/705 & 710
4.3 HP 9000/705 & 710
4.3.1 Overview
The HP 9000/705 and HP 9000/710 are miniaturized versions of the original PA-RISC “Snakes” (720,
730 and 750). The internals of these basically were taken over, with some significant changes:
Smaller I/D caches
Lower CPU clock rate
Different (narrower) connection to the memory subsystem
Integration of several subsystems (graphics, SCSI, Ethernet) onto a single mainboard
Reduced expansion possibilities
Introduced: 1992 for $7,490 (HP 9000/710)
4.3.2 Internals
CPU
705: PA-7000 35MHz with 32/64KB off-chip I/D L1 cache
710: PA-7000 50MHz with 32/64KB off-chip I/D L1 cache
Chipset
ASP chipset
NCR 53C700 8-bit single-ended SCSI-2
Intel 82596DX 10Mb Ethernet controller
WD16C552 parallel
NS16550A compatible serial
512KB EPROM - the Boot ROM
8KB EEPROM for storing system configuration status etc.
Intel 8042 microprocessor controlling:
*
battery backed RTC
*
system & user timers
*
HP-HIL interface
*
frontpanel system status LEDs
Viper memory and I/O controller, low-cost version implemented in two chips
Intel 82C501AD Ethernet transceiver
PSB2160 CODEC for 8-bit mono audio
136
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