About the CS400-AC Hardware Replacement Procedures
The
CS400-AC Hardware Replacement Procedures
lists and shows GreenBlade, Subrack, processor/DIMM, and
drive parts for the system. This manual includes procedures for replacing components in GB522 blades and
expansion blades. It also includes procedures for replacing parts in the subrack. Cray personnel or customers
who perform these replacement procedures must first complete Cray CCS hardware training and observe ESD
precautions when servicing this equipment.
Document Versions
HR90-2009: April 2016.
ESD Precautions
Observe electrostatic discharge (ESD) precautions during the entire removal and installation process. Required
apparel includes an ESD smock, ESD shoes, and an ESD wrist strap.
CAUTION:
●
ESD Precautions
● Observe all ESD precautions. Failure to do so can result in equipment damage.
ESD Smock
Wear a Cray approved static-dissipative smock when you service or handle an ESD-sensitive device. Completely
button the smock and wear it as the outermost layer of clothing. You must have a portion of the smock’s sleeves
in direct contact with the skin of your arms. Skin contact is essential for a dissipative path-to-earth ground through
your wrist strap. Tuck hair that exceeds shoulder length inside the back of the smock.
ESD Shoes
Wear approved static-dissipative shoes or approved dissipative heel straps on both shoes when you service or
handle an ESD-sensitive device. When sensitive equipment is exposed to static discharge, ESD shoes provide a
backup to the wrist straps and grounding cords and help prevent an excessive charge from building up on you
when you contact the conductive flooring. Use dissipative footwear in addition to, not as an alternative to, a wrist
strap.
ESD Wrist-strap
Wear a Cray approved wrist strap when you service or handle an ESD-sensitive device to eliminate possible ESD
damage to equipment. Connect the wrist strap cord directly to earth ground.
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About the CS400-AC Hardware Replacement Procedures
HR90-2009
3
CS400-AC Hardware Replacement Procedures