Lenovo x3550 M5 - Page 283

Step10.(Trainedtechnicianonly)Removeallheatsinksandmicroprocessors,andsetthemasideon
astatic-protectivesurfaceforreinstallation(see“Removingamicroprocessorandheatsink”on
page255
).
Notes:
1.Removethesocketcoversfromthemicroprocessorsocketsonthenewsystemboardand
placethemonthemicroprocessorsocketsofthesystemboardyouareremoving.
2.Donotallowthethermalgreasetocomeincontactwithanything,andkeepeachheatsink
pairedwithitsmicroprocessorforreinstallation.Contactwithanysurfacecancompromisethe
thermalgreaseandthemicroprocessorsocket.Amismatchbetweenthemicroprocessorand
itsoriginalheatsinkcanrequiretheinstallationofanewheatsink.
Step11.Disconnectallcablesfromthesystemboard.Makealistofeachcableasyoudisconnectit;you
canthenusethisasachecklistwhenyouinstallthenewsystemboard.
Attention:Disengagealllatches,releasetabsorlocksoncableconnectorswhenyoudisconnect
allcablesfromthesystemboard.Failingtoreleasethembeforeremovingthecableswilldamage
thecablesocketsonthesystemboard.Thecablesocketsonthesystemboardarefragile.Any
damagetothecablesocketsmayrequirereplacingthesystemboard.
Step12.Removethehot-swapfans(see“Removingathermalkit(hot-swapfan)”onpage191).
Step13.For2.5-inchharddiskdriveservermodels,openthesystemboardretentionlever.Forthe3.5-inch
harddiskdriveservermodels,pressthebluereleasetabsandliftthebatteryorpowermodule
holderupward.
Retention lever
Figure204.Retentionleverlocationfor2.5-inchharddiskdriveservermodels
Chapter5.Removingandreplacingcomponents269