Configuration Rules - Sun Microsystems Enterprise 250 Owner's Manual

Figure 5–5
Configuration Rules
All slots support PCI universal cards.
All slots support PCI long or short cards.
Each slot can supply up to 16 watts of power. The total power used for all four slots
must not exceed 64 watts.
PCI cards may be freely installed in any compatible PCI slots. Slots need not be filled
in any particular order. In most cases, the system's I/O performance will be
unaffected by placement of PCI cards in the slots. Heavily loaded systems, however,
will deliver better overall performance by installing high-throughput interface cards
on separate buses. Examples of high-throughput interfaces are dual-channel
UltraSCSI host adapters and ATM-622 interfaces.
Overall system availability may also be improved by installing redundant storage or
network interfaces on separate PCI buses.
Sun Enterprise 250 Server Owner's Guide ♦ Revision A, June 1998
82