
Table21.Removalstepsofsystemboard,DC-inconnector,fan,andExpressCardslotassembly(continued)
StepScrew(quantity)Color
Torque
6
M2×3.5mm,wafer-head,nylon-coated(1)Silver
0.181Nm
(1.85kgfcm)
Wheninstalling:
•MakesurethattheDC-inconnectorandthefanconnectorareattachedtothesystemboardrmly.
•Beforeyouattachthefanassemblytothecomputer,applythermalgrease,atanamountof0.2grams,onthe
partmarked
aasinthefollowinggure.Eithertoomuchortoolessapplicationofgreasecancauseathermal
problemduetoimperfectcontactwithacomponent.Y ouneedtopeelthethinlmofffromtherubberb.
2010LCDfrontbezel
Foraccess,removethisFRU:
•“1010Batterypack”onpage63
88ThinkPadX220andX220iHardwareMaintenanceManual
Book