
HP 9000/A180
4.15 HP 9000/A180
4.15.1 Overview
The PA-7300LC A180 and A180C were some of the latest 32-bit PA-RISC HP 9000 servers. They are
quite small and rack-mountable. Designated “Enterprise Internet Servers” they do not have any video
output, only serial console and Secure Web Console.
Introduced: September 1998, discontinued: February 2001
4.15.2 Internals
CPU
A180: PA-7300LC 180MHz with 64/64KB on-chip I/D L1 cache
A180C: PA-7300LC 180MHz with 64/64KB on-chip I/D L1 and 1MB off-chip unified L2 cache
The additional 1MB L2 cache is the only difference between both systems.
This cache is upgradeable through two DIMM slots near the CPU.
Chipset
LASI ASIC, which features:
– NCR 53C710 8-bit single-ended SCSI-2
– Intel 82596CA 10Mb Ethernet controller
– NS 16550A compatible serial
Dino GSC-to-PCI bridge
Phantom PseudoBC GSC+ port
DEC 21142/43 10/100BaseT PCI Ethernet
Buses
GSC+ general system-level I/O bus (probably clocked at 36MHz — 144MB/s peak data rate)
PCI high performance device I/O bus
SCSI-2 Fast-Narrow single-ended; main storage I/O bus
Memory
72-pin ECC EDO SIMMs, 60ns or faster.
Takes 64-256MB modules
Eight slots
128MB (2×64) minimum, 2048MB (8×256) maximum
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