
HP zx6000 Internals
4.45 HP zx6000
4.45.1 Overview
The Itanium zx6000s are the dual-processor brothers of the zx2000 workstations. The chassis was
designed for rack-mounting (2U( with appropriate rails; with a tower kit it can be converted to a
standalone unit. The internal architecture is based on HP’s zx1 Itanium chipset, also used in the zx2000
and various PA-RISC servers. In contrast to the zx2000, the zx6000 has slightly higher I/O and double
the memory bandwidth and supports three times the amount of memory.
The zx6000 with fast CPUs is probably the fastest HP-UX workstation.
Time of introduction: 2002, discontinued: September 2004, with prices at time of introduction between
$7,000 (entry configuration), $13,000 (average) and $27,000 (large).
4.45.2 Internals
CPU
No. CPU Type Clock L1 (I/D) L2 (I/D) L3
1-2 Itanium 2 McKinley 900MHz 16/16KB 256KB 1.5MB
1-2 Itanium 2 McKinley 1.0GHz 16/16KB 256KB 3.0MB
1-2 Itanium 2 Madison 1.3GHz 16/16KB 256KB 3.0MB
1-2 Itanium 2 Madison 1.5GHz 16/16KB 256KB 6.0MB
All caches are on-die (L1, L2 and L3).
Chipset
HP zx1 chipset
– zx1 MIO (memory and I/O controller) connects to the processor bus (6.4GB/s), two mem-
ory buses (each 4.25GB/s) and seven I/O channels (aggregate 3.5GB/s) and contains both
memory and cache controllers
– Six zx1 IOAs (I/O adapters) connect the PCI-X slots and I/O devices to the zx1 MIO with
an aggregate bandwidth of 3.5GB/s on seven 0.5GB/s channels
1. AGP 4x graphics bus on two channels — 1.0GB/s
2. PCI-X 64/133 I/O slot on one channel — 0.5GB/s
3. PCI-X 64/133 I/O slot on one channel — 0.5GB/s
4. PCI-X 64/133 I/O slot on one channel — 0.5GB/s
5. Gigabit Ethernet and Ultra320 SCSI on PCI 64/66 on one channel — 0.5GB/s
6. IDE, USB, management LAN on PCI 32/33 on one channel — 0.5GB/s
Gigabit Ethernet (Broadcom 5701)
Two-channel Ultra320 SCSI controller (LSI 1030)
Ultra ATA-100 IDE controller (PCI649)
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