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Replacing CRUs

29

Replacing the coin-cell battery

Attention

Do not open your computer or attempt any repairs before reading the 

Important 

Product Information Guide

.

Your computer has a special type of memory that maintains the date, time, and settings for built-

in features, such as parallel connector assignments (configurations). A coin-cell battery keeps this 

information active when you turn off the computer.

The coin-cell battery normally requires no charging or maintenance throughout its life; however, no 

coin-cell battery lasts forever. If the coin-cell battery fails, the date, time, and configuration information 

(including passwords) are lost. An error message is displayed when you turn on the computer.

To replace the coin-cell battery,

Remove the computer cover. For details, see 

 Removing the computer cover. 

Remove the front bezel. For details, see 

 Replacing the front bezel. 

Pivot the drive bay assembly upward. For details, see 

 Pivoting the drive bay assembly upward and 

downward. 

Replace the coin-cell battery.

1

2

3

4

Reinstall the removed parts. To complete the replacement, see 

 Completing the parts replacement. 

To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the 

Safety and Warranty 

Guide

.

Summary of Contents for V520

Page 1: ...provided on your computer Replaceable parts Locations of the replaceable parts on your computer Specifications Specifications of your computer Replacing FRUs Replacing instructions for Field Replaceable Units FRUs for technicians only Computer locks Locking devices for your computer Replacing CRUs Replacing instructions for Customer Replaceable Units CRUs ...

Page 2: ...nward 23 Replacing the storage drive 24 Replacing the 3 5 inch storage drive 24 Replacing the 2 5 inch storage drive 25 Replacing a memory module 26 Replacing the heat sink and fan assembly 28 Replacing the coin cell battery 29 Replacing a PCI Express card 30 Replacing the Wi Fi card 31 Replacing the M 2 solid state drive 33 Replacing the M 2 solid state drive bracket 35 Replacing the power supply...

Page 3: ...Power indicator This indicator is on when the computer is on 6 Power button Used to turn on your computer When you cannot shut down the computer from the operating system press and hold the power button for four or more seconds to turn off the computer 7 Microphone connector Used to connect a microphone to your computer You can use the microphone to record sounds or interact with the computer usin...

Page 4: ...3 0 connectors 2 Used to connect a USB compatible device For optimal data transfer connect a USB 3 0 device to a USB 3 1 or USB 3 0 connector instead of a USB 2 0 connector 6 USB 2 0 connectors 2 Used to connect a device that requires a USB 2 0 connection 7 Audio line out connector Used to send audio signals from the computer to external devices such as powered stereo speakers headphones or multim...

Page 5: ...10 Ethernet connector Used to connect an Ethernet cable for network access 11 Serial connector optional Used to connect an external modem a serial printer or other devices that use a serial connector 12 PCI Express card area To improve the operating performance of the computer you can connect PCI Express cards into this area Depending on the computer model the connectors in this area vary 13 Padlo...

Page 6: ...onnector 2 Microprocessor fan connector 3 Memory slot DIMM2 4 Memory slot DIMM4 5 Buzzer 6 Internal speaker connector 7 10 pin power connector 8 SATA power connectors 2 9 SATA 3 0 connectors 3 10 Auxiliary fan connector 1 11 Power button board connector 12 M 2 solid state drive slot 13 Thermal sensor connector ...

Page 7: ... connector 15 Front USB 2 0 connector 1 16 Parallel connector 17 Serial COM2 connector 18 PCH 19 PCI Express x1 card slot 20 M 2 Wi Fi card slot 21 PCI Express x16 graphics card slot 22 System fan connector 23 Coin cell battery 24 Microprocessor socket ...

Page 8: ...del label identifies the computer When you contact Lenovo for help the machine type and model information helps support technicians to identify the computer and provide faster service The machine type and model label is attached on the side of the computer as shown ...

Page 9: ... Audio features The integrated audio card supports the following Audio line in connector Audio line out connector Headphone connector Internal speaker optional Microphone connector The optional discrete audio card provides an enhanced audio experience and extended capabilities Input Output I O features Audio connectors audio line in audio line out headphone and microphone Card reader slot optional...

Page 10: ... PCI Express x16 graphics card slot Storage drive bay Network features Ethernet LAN Wireless LAN optional Bluetooth optional Physical dimensions Width 145 0 mm 5 7 inches Height 366 0 mm 14 4 inches Depth 293 2 mm 11 5 inches Weight without the package Maximum configuration as shipped 5 7 kg 12 6 lb ...

Page 11: ...e a Kensington style cable lock to secure your computer to a desk table or other nonpermanent fixture The cable lock connects to the security lock slot at the rear of your computer Depending on the type selected the cable lock can be operated with a key or combination The cable lock also locks the buttons used to open the computer cover This is the same type of lock used with many notebook compute...

Page 12: ...o you can seriously damage computer components When you handle parts and other computer components take these precautions to avoid static damage Limit your movement Movement can cause static electricity to build up around you Always handle parts and other computer components carefully Handle PCI PCI Express cards memory modules system boards and microprocessors by the edges Never touch any exposed...

Page 13: ...rs are responsible for replacing all self service CRUs Optional service CRUs Handling optional service CRUs requires some technical skills and simple tools such as a screwdriver These CRUs are isolated parts within the computer They are usually concealed by an access panel that is secured by more than two screws You must remove the screws and panel to access the specific CRU Optional service CRUs ...

Page 14: ...service CRU 1 Computer cover p 19 6 Coin cell battery p 29 8 Memory module p 26 10 M 2 solid state drive p 33 11 M 2 solid state drive bracket p 35 19 Optical drive bracket p 22 20 Optical drive p 21 21 Front bezel p 20 22 Card reader slot cover 23 Keyboard 24 Mouse 25 Power cord 27 Storage converter p 25 28 Primary or secondary storage drive a 2 5 inch or 3 5 inch storage drive p 24 32 PCI Expres...

Page 15: ...Replacing hardware 15 Optional service CRU 2 Heat sink and fan assembly p 28 4 Wi Fi card p 31 5 Wi Fi card shield p 31 30 Power supply assembly p 36 ...

Page 16: ...sor p 48 9 System board p 51 12 Power button board p 45 13 Optical drive cable 14 Card reader p 47 15 Internal speaker p 40 16 Wi Fi antennas 2 p 43 17 Rear Wi Fi antenna cover p 43 18 Thermal sensor p 42 26 Storage drive cable 29 Front fan p 41 31 Chassis ...

Page 17: ...n your computer or attempt any repairs before reading the Important Product Information Guide Before replacing a CRU click the illustration of the part to check the brief procedures Front bezel Drive bay assembly Storage drive Computer cover Optical drive Memory module Optical drive bracket Heat sink and fan assembly Coin cell battery ...

Page 18: ...t that is not in the list above contact a Lenovo service technician The support phone numbers are available at http www lenovo com support phone PCI Express card M 2 solid state drive bracket Wi Fi card Power supply assembly M 2 solid state drive ...

Page 19: ... the computer and wait several minutes until the computer is cool 1 Remove any media from the drives and turn off all connected devices and the computer 2 Disconnect all power cords from electrical outlets and disconnect all cables from the computer 3 Unlock any locking device that secures the computer cover 4 Remove the computer cover 5 Complete the replacement For details see Completing the part...

Page 20: ...our computer or attempt any repairs before reading the Important Product Information Guide 1 Remove the computer cover For details see Removing the computer cover 2 Replace the front bezel 1 2 3 Complete the replacement For details see Completing the parts replacement ...

Page 21: ...ver For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Disconnect the signal cable and the power cable from the optical drive 4 Replace the optical drive 1 2 5 Connect the signal cable and the power cable to the new optical drive 6 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 22: ...mation Guide 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Remove the optical drive For details see Replacing the optical drive 4 Replace the optical drive bracket 1 2 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 23: ... reading the Important Product Information Guide 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward and downward 1 2 4 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 24: ...computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Disconnect the signal cable and the power cable from the 3 5 inch storage drive 5 Refer to the following to replace the 3 5 inch storage drive 3 5 inch primary storag...

Page 25: ...mplete the replacement see Completing the parts replacement Replacing the 2 5 inch storage drive 1 Remove the storage converter with the 2 5 inch storage drive See Replacing the 3 5 inch storage drive 2 Replace the 2 5 inch storage drive in the storage converter 1 2 3 Reinstall the storage converter with the 2 5 inch storage drive See Replacing the 3 5 inch storage drive ...

Page 26: ...ion Guide Ensure that you follow the installation order for memory modules shown in the following figure 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward ...

Page 27: ...Replacing CRUs 27 4 Replace a memory module 1 2 3 4 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 28: ...ove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Replace the heat sink and fan assembly 1 2 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 29: ...ll battery lasts forever If the coin cell battery fails the date time and configuration information including passwords are lost An error message is displayed when you turn on the computer To replace the coin cell battery 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward F...

Page 30: ...ve the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Replace a PCI Express card 1 2 Note If the card is held in place by a retaining latch press the latch 1 as shown to disengage the latch Then gently remove the card from the slot 5 Reinstall the removed parts To complete the replace...

Page 31: ...e 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Depending on your computer model refer to one of the following to replace the Wi Fi card Type 1 1 2 3 4 5 6 ...

Page 32: ...Replacing CRUs 32 Type 2 1 2 3 4 5 6 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 33: ...ide 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Depending on your computer model refer to one of the following to replace the M 2 solid state drive Type 1 1 2 3 4 ...

Page 34: ...Replacing CRUs 34 Type 2 1 2 3 4 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 35: ...ving the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Remove the M 2 solid state drive For details see Replacing the M 2 solid state drive 5 Replace the M 2 solid state drive bracket 1 2 6 Reinstall the removed parts To complete the replacement see Comple...

Page 36: ...s are present inside any component that has this label attached There are no serviceable parts inside these components If you suspect a problem with one of these parts contact a service technician 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting t...

Page 37: ...or the locations of various components in your computer 2 Ensure that the cables are routed correctly before reinstalling the computer cover Keep cables clear of the hinges and sides of the computer chassis to avoid interference when reinstalling the computer cover 3 Reinstall the computer cover 4 Place the computer in an upright position 5 If a locking device is available use it to lock the compu...

Page 38: ...rect by referring to the website http www lenovo com serviceparts lookup An FRU should not be replaced because of a single unreproducible failure Single failures can occur for a variety of reasons that have nothing to do with a hardware defect such as cosmic radiation electrostatic discharge or software errors Consider replacing an FRU only when a problem recurs If you suspect that an FRU is defec...

Page 39: ...stem board Note To replace a component that is not in the list above contact a Lenovo service technician The support phone numbers are available at http www lenovo com support phone Microprocessor Card reader Power button board Rear fan ...

Page 40: ...cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Disconnect the internal speaker cable from the system board 5 Replace the internal speaker 1 2 6 Connect the new internal speaker cable to the system board 7 Reinstall the removed parts To complete the replacement see C...

Page 41: ...mputer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Disconnect the front fan cable from the system board 5 Replace the front fan 1 2 6 Connect the new front fan cable to the system board 7 Reinstall the removed parts To complete the replacement see Completing the ...

Page 42: ...r cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Disconnect the thermal sensor cable from the system board 5 Replace the thermal sensor 1 2 6 Connect the new thermal sensor cable to the system board 7 Reinstall the removed parts To complete the replacement see Compl...

Page 43: ...ation Guide 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Disconnect the Wi Fi antenna cables from the Wi Fi card For details see Replacing the Wi Fi card 4 Refer to the following to replace the Wi Fi antennas Front Wi Fi antenna 1 2 Rear Wi Fi antenna 1 2 ...

Page 44: ...ing FRUs 44 3 4 5 Connect the new Wi Fi antenna cables to the Wi Fi card For details see Replacing the Wi Fi card 6 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 45: ...epairs before reading the Important Product Information Guide 1 Remove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Disconnect the power button board cable from the system board 4 Replace the power button board 1 2 3 4 ...

Page 46: ...Replacing FRUs 46 5 5 Connect the new power button board cable to the system board 6 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 47: ...g the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Remove the power button board For details see Replacing the power button board 4 Disconnect the card reader cable from the system board 5 Replace the card reader 1 2 3 4 6 Connect the new card reader cable to the system board 7 Reinstall the removed parts To complete the replacement see Completing the parts r...

Page 48: ...front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Remove the heat sink and fan assembly For details see Replacing the heat sink and fan assembly 5 Record the cable routing and cable connections and then disconnect all cables from the system board See System board 6 Replace the microprocessor Note Your microprocessor and socket m...

Page 49: ...7 Route all the cables that you disconnected from the system board and then reconnect the cables to the system board See System board 8 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 50: ...ove the computer cover For details see Removing the computer cover 2 Remove the front bezel For details see Replacing the front bezel 3 Pivot the drive bay assembly upward For details see Pivoting the drive bay assembly upward and downward 4 Replace the rear fan 1 2 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 51: ...g the drive bay assembly upward and downward 5 Remove all memory modules For details see Replacing a memory module 6 Remove the heat sink and fan assembly For details see Replacing the heat sink and fan assembly 7 Remove the Microprocessor For details see Replacing the microprocessor 8 Remove all PCI Express cards For details see Replacing a PCI Express card 9 Remove the Wi Fi card For details see...

Page 52: ... removing and reinstalling order of the screws Handle the system board carefully by its edges 13 Route all the cables that you disconnected from the failing system board and then reconnect the cables to the new system board See System board 14 Reinstall the removed parts To complete the replacement see Completing the parts replacement ...

Page 53: ...ANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This information could include technical inaccuracies or typographical errors Changes a...

Page 54: ...ignificantly Some measurements may have been made on development level systems and there is no guarantee that these measurements will be the same on generally available systems Furthermore some measurements may have been estimated through extrapolation Actual results may vary Users of this document should verify the applicable data for their specific environment Trademarks The following terms are ...

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