
HP A400 & A500 (rp2400/rp2430 & rp2450/rp2470) External connectors
– Four independent PCI-64/66 I/O buses (on seven I/O links):
1. PCI-64/66 bus on two I/O links (500MB/s) for one PCI “Twin-turbo” slot (slot 1)
2. PCI-64/66 bus on two I/O links (500MB/s) for one PCI “Twin-turbo” slot (slot 2)
3. PCI-64/66 bus on two I/O links (500MB/s) for two PCI “shared” slots (slot 3 and 4)
4. PCI-64/66 bus on one I/O link (250MB/s) for the core I/O — SCSI, Ethernet networking,
management LAN, serial ports, etc.
Memory
ECC SDRAM DIMMs
Take 256MB/512MB/1GB modules
Eight slots, A400 can only use first 4 of those
256MB (1×256) minimum, A400/rp2430: 2GB (4×512MB) maximum, A500/rp2470: 8GB
(8×1GB) maximum
Expansion
A400/rp2430: Two PCI 64-bit/66MHz, 5V slots [two slots from the A500 are disabled]
A500/rp2470: Four PCI 64-bit/66MHz, 5V slots
Two of those slots are “Twin-turbo” slots (slot 1 and 2), each on its own dedicated PCI bus
connected via two dedicated 250MB/s I/O channel (rope)
A500/rp2470: The other two slots are “shared” slots (slots 3 and 4) and share two 250MB/s I/O
channels — if only one slot is used it is allocated two channels and becomes a “Twin-turbo” slot
in effect
Drives
Two trays for each one 3.5″ Ultra2-Wide LVD SCSI hard drives with 80-pin SCA connector which
require a special spud to be plugged into the system.
4.16.3 External connectors
50-pin HD SCSI-2 Ultra-Narrow single-ended
68-pin HD SCSI-3 Ultra2-Wide LVD
DB25 male RS232C serial for console/UPS (a break-out cable which converts to three DB9 plugs)
TP/RJ45 10/100Mbit Ethernet
TP/RJ45 10Mbit Ethernet for Secure Web Console/GSP
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