Lenovo H520s User Manual

Replacingthesystemfan
Toreplacethesystemfan:
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethecomputercover.Referto“Removingthecomputercover”.
Step5.Removethefrontbezel.Referto“Removingthefrontbezel”.
Step6.Disconnectthefanpowercablefromtheconnectoronthemotherboard.
Step7.Removethe4screwsthatsecurethesystemfantotheheat-sink,slidethenliftthesystemfan
outtoremoveit.
Step8.Toinstallthenewsystemfan:
a.Lineupthenewsystemfanwiththechassisandsecureittothechassiswith3screws.
b.Connectthesystemfanpowercabletotheconnectorontheboard.
Step9.Reattachthefrontbezel,computercover.
Replacingthemicroprocessorfan
Toreplacethemicroprocessorfan:
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethecomputercover.Referto“Removingthecomputercover”.
Step5.Disconnectthefanpowercablefromtheconnectoronthemotherboard.
Chapter8.Replacinghardware37

Lenovo H520s Specifications

General

Chipset	Intel H61
Storage	Up to 2TB HDD
Audio	Integrated HD Audio
Power Supply	180W
RAM	Up to 8GB DDR3
Graphics	Integrated Intel HD Graphics or optional NVIDIA GeForce
Operating System	Windows 8
Optical Drive	DVD-RW or Blu-ray
Networking	10/100/1000 Mbps Ethernet
Ports	HDMI, VGA, Audio ports, Ethernet
Processor	Intel Core i3/i5/i7