Sun Microsystems Fire 880, Owner'S Manual

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70 Sun Fire 880 Server Owner’s Guide • August 2001
Configuration Rules
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All slots accept short or long PCI cards.
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5V PCI cards must be installed into 5V slots. 3.3V PCI cards must be installed into
3.3V slots. All slots accept universal (3.3V/5V) PCI cards.
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All slots accept either 32- or 64-bit PCI cards.
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All slots comply with PCI Local Bus Specification Revision 2.1.
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Each slot can supply up to 25 watts of power. The total power used for all nine
slots must not exceed 135 watts.
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Compact PCI (cPCI) cards and SBus cards are not supported.
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Slots 7 and 8 can operate at either 33 or 66 MHz; however, both slots always
operate at the same speed. When the system is booted, if neither slot contains a
33-MHz PCI card, both slots operate at 66 MHz. If you then add a PCI card to
either slot via a hot-plug operation, the card must be a 66-MHz card; a 33-MHz
card will fail to operate under these conditions.
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If either slot 7 or 8 contains a 33-MHz PCI card when the system is booted, both
slots operate at 33 MHz. In this case, either slot can accept a 33-MHz or 66-MHz
card via a hot-plug operation; however, 66-MHz cards will operate at 33 MHz.
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For best performance, install high-throughput cards into slots 7 and 8.
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You can improve overall system availability by installing redundant network or
storage interfaces on separate PCI buses and PCI bridges. For additional
information, see “About Multipathing Software” on page 148.
Note –
All internal options (except disk drives and power supplies) must be
installed only by qualified service personnel. For information about installing or
removing PCI cards, see the
Sun Fire 880 Server Service Manual , which is included on
the Sun Fire 880 Documentation CD .