Lenovo ThinkStation C20 User Manual

Figure28.Removingtheheatsinkandfanassembly
8.Carefullylifttheheatsinkandfanassemblyoffthesystemboard.
Notes:
a.Y oumighthavetogentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor.
b.Donottouchthethermalgreasewhilehandlingtheheatsinkandfanassembly.
9.Removetheplasticcoverfromthebottomofthenewheatsinkandfanassemblytoexposethethermal
grease(thiscoverprotectsthethermalgreasefromcontamination).
Notes:
a.Donotremovetheplasticcoveruntilyouarereadytoinstalltheheatsinkandfanassemblyon
themicroprocessor.
b.Donottouchthethermalgreaseontheheatsinkandfanassembly.
c.Donotputtheheatsinkandfanassemblyanywhereexceptonthemicroprocessoraftertheplastic
coverhasbeenremovedandthethermalgreaseexposed.
10.Positionthenewheatsinkandfanassemblyonthemicroprocessorsothatthefourscrewsarealigned
withtheholesinthesystemboard.
Note:Positionthenewheatsinkandfanassemblysothattheheatsinkandfanassemblycableis
towardthemicroprocessorfanconnectoronthesystemboard.
11.Followthissequencetoinstallthefourscrewstosecurethenewheatsinkandfanassembly:
a.Partiallytightenscrew1,thenfullytightenscrew2,andthenfullytightenscrew1.
b.Partiallytightenscrew3,thenfullytightenscrew4,andthenfullytightenscrew3.
12.Connecttheheatsinkandfanassemblycabletothesystemboard.See“Locatingpartsandconnectors
onthesystemboard”onpage9.
13.Ifyouarereplacingheatsinkandfanassembly2,reinstalltheopticaldrivebracketintothechassis.
Then,reinstalltheopticaldriveintothechassis.See“Replacingtheopticaldrive”onpage27
.
Chapter2.Installingorreplacinghardware31

Lenovo ThinkStation C20 Specifications

General

HDD capacity	500 GB
Internal memory	8 GB
Memory clock speed	1333 MHz
Processor cache	12 MB
Processor frequency	2.4 GHz
Processor front side bus	1066 MHz
Power supply	800 W
Plug and Play	Yes

Weight and Dimensions

Depth	444 mm
Width	130 mm
Height	427 mm