HP B160L Manual do Utilizador Página 274

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HP N4000 (rp7405/rp7410) Internals
Buses
Runway+/Runway DDR CPU bus (CPU to cell controller), 125MHz DDR, 64-bit wide, 2.0GB/s
per CPU aggregate 8.0GB/s for each cell (four CPUs/cell) and 16.0GB/s for maximum system
Memory bus (memory to cell controller) 4.0GB/s for each cell aggregate 8.0GB/s for maximum
system
XBC cell-to-cell link (cell controller to cell controller) 8.0GB/s aggregate
SBA cell-to-I/O link (cell controller to I/O backplane) 2.0GB/s on each cell aggregate 4.0GB/s
for maximum system
32 I/O links/ropes, 12-bit wide, 265MB/s (16 links/ropes on each cell) 8.5GB/s I/O aggregate
peak bandwidth
14 PCI-64/66 I/O buses for expansion slots
Two PCI-64/33 I/O buses for expansion slots (for Core I/O SCSI/LAN)
Two PCI-64/33 I/O buses for Core I/O (MP/SCSI)
Two SCSI-3 Ultra160 LVD main storage I/O buses (one on each cell)
Ultra SCSI SE for removable media (DVD/Tape)
Memory
ECC DIMMs, low-voltage TTL interface, 125MHz frequency (traditional/PC-133 SDRAMs do
not work)
256MB, 512MB and 1GB modules supported (2GB probably later too)
16 slots on each cell board (32 slots maximum in a full system configuration), installed in quads
32GB maximum (in a full system configuration with two cells)
64GB was given as maximum with “future” memory modules probably working today
Expansion
There are in all 16 PCI 64-bit/66MHz slots in the I/O cage, which can be fully accessed when using a
system with two cells with one cell board only seven slots are available. One PCI slot is dedicated to
the Core I/O card set (see above) so only 15 of the 16 PCI slots are available for expansion options.
14 “Twin-Turbo” PCI 64-bit/66MHz slots, each on an independent PCI bus, each connected via
two I/O links/ropes (aggregate 530MB/s), hot-plug capable
Two “Turbo” PCI 64-bit/66MHz slots, each on an independent PCI bus, each connected via one
I/O link/rope (265MB/s), hot-plug capable (one of these two Turbo slots is reserved for Core I/O
LAN/SCSI)
Twelve slots keyed for 3.3V (support either 3.3V or universal PCI cards)
Four slots keyed for 5.0V (support either 5.0V or universal PCI cards)
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