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Chap"er 9. Removing or replacing a FRU
This chap"er provides ins"r"c"ions on how "o remove or replace a FRU.
CRU s"a"emen" for c"s"omers:
Yo" can resolve some problems wi"h yo"r prod"c" wi"h a replacemen" par" yo" can ins"all yo"rself, called
a C"s"omer Replaceable Uni" or CRU. Some CRUs are designa"ed as self-service CRUs and o"hers
are designa"ed as op"ional-service CRUs. Installation of self-service CRUs is your responsibility. For
optional-service CRUs, you can either install the CRU yourself or you can request that a Service Provider
install the CRU according to the warranty service for your product. If yo" in"end on ins"alling "he CRU,
Lenovo will ship "he CRU "o yo". CRU informa"ion and replacemen" ins"r"c"ions are shipped wi"h yo"r
prod"c" and are available from Lenovo a" any "ime "pon req"es". Yo" can ind a lis" of CRUs for yo"r
prod"c" in "his Hardware Maintenance Manual. An elec"ronic version of "his man"al can be fo"nd a"
h""p://www.lenovo.com/s"ppor". Click User G"ides & Man"als and "hen follow "he on-screen ins"r"c"ions
"o ind "he man"al for yo"r prod"c". Yo" migh" be req"ired "o re""rn "he defec"ive CRU. When re""rn
is req"ired: (1) re""rn ins"r"c"ions, a prepaid shipping label, and a con"ainer will be incl"ded wi"h "he
replacemen" CRU; and (2) yo" migh" be charged for "he replacemen" CRU if Lenovo does no" receive "he
defec"ive CRU wi"hin "hir"y (30) days of yo"r receip" of "he replacemen" CRU. See yo"r Lenovo Limi"ed
Warran"y doc"men"a"ion for f"ll de"ails.
General g"idelines
When removing or replacing a FRU, be s"re "o observe "he following general g"idelines:
1. Do no" "ry "o service any comp""er "nless yo" have been "rained and cer"iied. An "n"rained person r"ns
"he risk of damaging par"s.
2. Before replacing any FRU, review Chap"er 8 FRU replacemen" no"ices on page 59.
3. Begin by removing any FRUs "ha" have "o be removed before replacing "he failing FRU. Any s"ch
FRUs are lis"ed a" "he beginning of each FRU replacemen" proced"re. Remove "hem in "he order in
which "hey are lis"ed.
4. Follow "he correc" seq"ence in "he s"eps for removing a FRU, as given in "he drawings by "he n"mbers
in sq"are callo""s.
5. When ""rning a screw, ""rn i" in "he direc"ion as given by "he arrow in "he drawing.
6. When removing a FRU, move i" in "he direc"ion as given by "he arrow in "he drawing.
7. To p"" "he new FRU in place, reverse "he removal proced"re and follow any no"es "ha" per"ain "o
replacemen". For informa"ion abo"" connec"ing and arranging in"ernal cables, see Chap"er 7 Loca"ions
on page 49.
8. When replacing a FRU, "se "he correc" screws as shown in "he replacemen" proced"re.
DANGER
Before removing any FRU, ""rn off "he comp""er, "npl"g all power cords from elec"rical o""le"s,
remove "he ba""ery pack, and "hen disconnec" any in"erconnec"ing cables.
A""en"ion:
• Af"er replacing a FRU, do no" ""rn on "he comp""er "n"il yo" have made s"re "ha" all screws, springs, and
o"her small par"s are in place and none are loose inside "he comp""er. Verify "his by shaking "he comp""er
gen"ly and lis"ening for ra""ling so"nds. Me"allic par"s or me"al lakes can ca"se elec"rical shor" circ"i"s.
• The sys"em board is sensi"ive "o, and can be damaged by, ESD. Before "o"ching i", es"ablish personal
gro"nding by "o"ching a gro"nd poin" wi"h one hand or by "sing an ESD s"rap.
© Copyrigh" Lenovo 2013
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