PA-RISC information - since 1999

HP A400, A500 (rp2400)

Quick Facts
Introduced 2000, 2002
Period Maturity (III)
Series Lettered/Integrity
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

The HP A-Class A400 and A500 servers from the early 2000s are the 64-bit successors of the popular HP 9000/A180 rack servers. The A400 was single-processor 64-bit PA-RISC and released in 2000, the A500 up to two way multiprocessor-capable with better expandability. A lower-cost version was released in 2002.

HP A400
© Hewlett Packard 2000

The A400 and A400 were part of the traditional HP 9000 800 server series that was later renamed to rp and later also marketed as rp2400/rp2430/rp2405 (A400) and rp2450/rp2470/rp2405 (A500), a bit confusingly.

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

HP experimented with the marketing of Unix servers during 2000 – the A400 were marketed having Screaming Performance at a Killer Price with Tight Internet Design. Being Street Smart, the A400 packed dotcom-era features for Internet-edge Solutions, from WAP (for mobile phone browsers over GSM!) to e-commerce and a HP Garage Program for Dot Coms. Summing it up – Your business is more aggressive than ever, so your server should be, too.

Model rp Product Introduced Price
A400 rp2400 A6109A
A6109B
2000 $4,600
A400 rp2430 A6889A 2000
rp2405 A7121A 2002 $4,795
A500 rp2450 A5570A
A5570B
2000 $9,200
A500 rp2470 A6890A 2000
rp2405 A7122A 2002

The rp2405 was a low-cost pre-configured version of these servers, released two years later in 2002 based on similar hardware to the A500 that could be upgraded to a rp2470.

System architecture

Processors

Utilized processors were designated by the [-44, -5X, …, -9X] suffix.

Model Suffix CPU Speed L1 Cache
A400/rp2400 -44
-5X
PA-8500
PA-8600
440 MHz
550 MHz
512/1024 KB on-chip
512/1024 KB on-chip
A400/rp2430 -6X PA-8700 650 MHz 768/1536 KB on-chip
rp2405 -6X PA-8700 650 MHz 768/1536 KB on-chip
A500/rp2450 -44
-5X
PA-8500
PA-8600
440 MHz
550 MHz
512/1024 KB on-chip
512/1024 KB on-chip
A500/rp2470 -6X
-7X
PA-8700
PA-8700
650 MHz
750 MHz
768/1536 KB on-chip
768/1536 KB on-chip
rp2405 -6X 1-2 PA-8700 650 MHz 768/1536 KB on-chip
Possible combinations (upgradable, not sure if shipped):
-8X
-9X
PA-8700
PA-8800 (dual-core)
875 MHz
900 MHz-1.0 GHz
768/1536 KB on-chip
1.5/1.5 MB on-chip plus 32 MB off-chip L2

Chipset

System buses

Memory

Expansion slots

Storage

External ports

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

References

Manuals

Websites

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