Intel MFSYS25V2, Service Manual

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vi Intel
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Modular Server System Service Guide
Warnings
These warnings and cautions apply whenever you remove the compute module enclosure
cover to access components inside the system. Only a technically qualified person should
maintain or configure the system.
Heed safety instructions: Before working with your server product, whether you are
using this guide or any other resource as a reference, pay close attention to the safety
instructions. You must adhere to the assembly instructions in this guide to ensure and
maintain compliance with existing product certifications and approvals. Use only the
described, regulated components specified in this guide. Use of other products/
components will void the UL listing and other regulatory approvals of the product and
will most likely result in noncompliance with product regulations in the region(s) in which
the product is sold.
System power on/off: The power button DOES NOT turn off the system AC power. To
remove power from the system, you must unplug the AC power cord from the wall outlet
or the chassis. Make sure the AC power cord is unplugged before you open the chassis,
add, or remove any components.
Hazardous conditions, devices and cables: Hazardous electrical conditions may be
present on power, telephone, and communication cables. Turn off the system and
disconnect the power cord, telecommunications systems, networks, and modems attached
to the system before opening it. Otherwise, personal injury or equipment damage can
result.
Electrostatic discharge (ESD) and ESD protection: ESD can damage disk drives,
boards, and other parts. We recommend that you perform all procedures in this document
only at an ESD workstation. If one is not available, provide some ESD protection by
wearing an anti-static wrist strap attached to chassis ground (any unpainted metal surface)
on your system when handling parts.
ESD and handling electronic devices: Always handle electronic devices carefully. They
can be extremely sensitive to ESD. Do not touch the connector contacts.
Installing or removing jumpers: A jumper is a small plastic encased conductor that slips
over two jumper pins. Some jumpers have a small tab on top that you can grip with your
fingertips or with a pair of fine needle nosed pliers. If your jumpers do not have such a
tab, take care when using needle nosed pliers to remove or install a jumper; grip the
narrow sides of the jumper with the pliers, never the wide sides. Gripping the wide sides
can damage the contacts inside the jumper, causing intermittent problems with the
function controlled by that jumper. Take care to grip with, but not squeeze, the pliers or
other tool you use to remove a jumper, or you may bend or break the pins on the board.
Reinstalling enclosure cover : To protect internal components and for proper cooling and
airflow, the compute module should not be inserted into the chassis with the cover
removed; operating it without the enclosure cover in place can damage system parts.