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PA-RISC information - since 1999

HP A400, A500 (rp2400, A-Class)

Quick Facts
Introduced 2000, 2002
CPU 1-2
PA-8500/
PA-8600
PA-8700
440-750 MHz
Cache 1.5-2.25 MB L1
RAM 2-8 GB
Design Astro
Drives 2 SCSI
Expansion 2-4 PCI
Bandwidth System 1.9 GB/s
I/O 1.3 GB/s (A400)
I/O 1.9 GB/s (A500)
Mem 1.9 GB/s
I/O 100E
2 SCSI
1/3 serial
10E console

Overview

The HP A-Class servers rp2400/rp2430/rp2405 (A400), and rp2450/rp2470/rp2405 (A500) are the early 2000s 64-bit successors of the popular HP 9000/A180 rack servers. Still being part of the HP 9000 800 series, the A-Class were renamed to the rp server series. The A400 was single-processor while the A500 was SMP-capable and had better expandability. The rp2405 was a low-cost version, introduced two years later based on similar hardware to the A500 that could be upgraded to a rp2470.

System design is based on 64-bit PA-RISC processors with large on-chip L1 caches, Astro memory/CPU controller and Elroy PCI bridges for expansion and I/O, a similar but simplified architecture of the HP Visualize C3000 line of workstations.

Model rp Product Introduced Price
A400 rp2400 A6109A
A6109B
2000
A400 rp2430 A6889A 2000
(A400) rp2405 A7121A 2002
A500 rp2450 A5570A
A5570B
2000
A500 rp2470 A6890A 2000
(A500) rp2405 A7122A 2002

Internals

CPU

The A400 servers were uniprocessor while the A500 were up to two-way SMP.

Model CPU Processor options
A400/rp2400 1 -44: PA-8500 440 MHz with 512/1024 KB on-chip I/D L1 cache
-5X: PA-8600 550 MHz with 512/1024 KB on-chip I/D L1 cache
A400/rp2430 1 -6X: PA-8700 650 MHz with 768/1536 KB on-chip I/D L1 cache
A400/rp2405 1 -6X: PA-8700 650 MHz with 768/1536 KB on-chip I/D L1 cache
A500/rp2450 1-2 -44: PA-8500 440 MHz with 512/1024 KB on-chip I/D L1 cache
-5X: PA-8600 550 MHz with 512/1024 KB on-chip I/D L1 cache
A500/rp2470 1-2 -6X: PA-8700 650 MHz with 768/1536 KB on-chip I/D L1 cache
-7X: PA-8700 750 MHz with 768/1536 KB on-chip I/D L1 cache
A500/rp2405 1-2 -6X: PA-8700 650 MHz with 768/1536 KB on-chip I/D L1 cache

The following -8X or -9X might have been shipped or were theoretically upgradable.

Chipset

Buses

Memory

Expansion

Drives

External connectors

References

Manuals

Website

Operating systems

Benchmarks

Model SPEC2000, int SPEC2000, fp SPEC2000
rate, int
SPEC2000
rate, fp
A500-5X
(rp2450)
422 414 2-CPU: 9.3 2-CPU: 7.6
A500-7X
(rp2470)
581 6.74
2-CPU: 12.9

Dimensions

Model Height Width Depth Weight
95mm 482mm 635mm 23kg
Rack-mounted 2U 482mm 774mm 23kg

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