Rules For Card Installation And Removal; Installing A Card - Silicon Graphics Origin 350 User Manual

6: Installing and Removing Customer-replaceable Units

Rules for Card Installation and Removal

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Installing a Card

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When installing or removing PCI or PCI-X cards from your system, be aware of the
following rules:
• If you run a PCI and PCI-X cards on the same bus at the same time, the PCI-X card
will run on PCI mode.
• If you run cards of different speeds on the same bus, the highest-speed card will run
at the speed of the slower card. For example, if a card is running at 100 MHz in one
slot of a bus and a card is running at 33 MHz on the second slot of the same bus,
both cards will run at 33 MHz.
• When deciding to install a PCI or PCI-X card, be aware that if an IO9 card (a PCI
card that runs at 66 MHz) is installed in your module (usually in the lowermost
slot), and if you want to install a card in a slot (slot immediately above where the
IO9 card is installed) that is on the same bus as the IO9 card, the slot will operate
only in PCI mode at a speed no faster than 66 MHz.
• Note the following caution when installing or removing a card:
Caution: Electronic equipment can be irreparably damaged by electrostatic
discharge (ESD). Always follow these preventive measures when you handle a
system component:
- Remove a component from its antistatic bag only when you are ready to install it.
- If you handle a component before installation, do not place it on surfaces that
produce ESD (carpeting, for example) or near devices that create static electricity.
- Attach a static wrist strap to a grounded connection on your system when you
install or remove a component.
To install a PCI or PCI-X card, follow these steps:
1. Power off the server system. For power off instructions, see "Powering the Server
System On and Off" on page 53.
2. Disconnect all of the cables at the rear of the module.
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