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Dell L521X13590620SA manual

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Table of contents for the manual

  • Page 1

    book.book Page 1 Monday, June 25, 2012 11:55 AM Dell XPS 15 Owner’s Manual Computer model: XPS L521X Regulator y model: P23F Regulatory type: P23F001[...]

  • Page 2

    book.book Page 2 Monday, June 25, 2012 11:55 AM __________ __________ Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potent ial damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for pr[...]

  • Page 3

    book.book Page 3 Monday, June 25, 2012 11:55 AM Contents Before Y ou Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 T urn Off Y our Computer and Connected Devices . . . . . 8 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Recommended T ools . . . . . . . . . . . . . . . . . . . . . . . . 9 After Working Ins[...]

  • Page 4

    book.book Page 4 Monday, June 25, 2012 11:55 AM Removing the Memory Module(s) . . . . . . . . . . . . . 23 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Replacing the Memor y Module(s) . . . . . . . . . . . . . 25 Procedure . . . . . . . . . . . . [...]

  • Page 5

    book.book Page 5 Monday, June 25, 2012 11:55 AM Removing the Co in-Cell Ba ttery . . . . . . . . . . . . . . 38 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Replacing the Co in-Cell Battery . . . . . . . . . . . . . 40 Procedure . . . . . . . . . [...]

  • Page 6

    book.book Page 6 Monday, June 25, 2012 11:55 AM Removing the Power/Batter y Status-Light Board . . . . . . . . . . . . . . . . . . . . . . . . . 50 Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Replacing the Power/Batter y Status-Light Board . . . [...]

  • Page 7

    book.book Page 7 Monday, June 25, 2012 11:55 AM Replacing the Display . . . . . . . . . . . . . . . . . . . . . . 68 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Postrequisit es . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Removing the Palm Rest . . . . . . . . . . . . . . . . . . . . 69 Prerequisites . . .[...]

  • Page 8

    book.book Page 8 Monday, June 25, 2012 11:55 AM Before Y ou Begin T urn Off Y our Computer and Connected Devices CAUTION: T o avoid losing data, save and close all open files and exit all open programs before yo u turn off your computer . 1 Save and close all open files and exit all open programs. 2 Click Start and click Shut down . Microsoft Windo[...]

  • Page 9

    book.book Page 9 Monday, June 25, 2012 11:55 AM CAUTION: When you disc onnect a cable, pull on its connector or on its pull-t ab, not on the cable itself. Som e cables have connectors with l ocking tabs or thumb-screws that you must disen gage before disconnecting the cable. When disconnecting cables, keep them evenly aligned to avoid bending any c[...]

  • Page 10

    book.book Page 10 Mond ay, June 25, 2012 1 1:55 AM After W orking Inside Y our Computer After you complete replacement pr ocedures, ensure the following: • Replace all screws and ensure that no stray screws remain inside your computer. • Connect any external devices, cables, ca rds, and any other part(s) you removed before working on your compu[...]

  • Page 11

    book.book Page 11 Mond ay, June 25, 2012 1 1:55 AM Removing the Base Cover WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Co[...]

  • Page 12

    book.book Page 12 Mond ay, June 25, 2012 1 1:55 AM 3 Usin g a Phillips screw driver, remove the screws beneath the system badge. 4 Us ing a T5 s crew driv er, remov e th e sc rews from the base-cover assembly. 1 2 1 T5 screws (6) 2 screws (2) 5 Slide the tabs on the system badge into the slots on the base-cover assembly and snap the system badge in[...]

  • Page 13

    book.book Page 13 Mond ay, June 25, 2012 1 1:55 AM 7 Lift the connector latch and, using the pu ll-tab, disconnect the battery-LED-board cable from the system board. 5 4 3 2 1 1 connector latc h 2 pull-tab 3 battery-LED-board ca ble 4 battery-LED board 5 base-cover assembly 8 Remove the battery-LED board from the base cover . See "Removing the[...]

  • Page 14

    book.book Page 14 Mond ay, June 25, 2012 1 1:55 AM Replacing the Base Cover WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your computer , follow th e instructions in " After Working Inside Y our C[...]

  • Page 15

    book.book Page 15 Mond ay, June 25, 2012 1 1:55 AM Removing the Battery-LED Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y[...]

  • Page 16

    book.book Page 16 Mond ay, June 25, 2012 1 1:55 AM 3 Remove the screw that secures the battery-LED board to the base cover. 4 Lift and sl ide the battery-LED board out of the tab on the base cover. 1 2 3 1 screw 2 battery-LED board 3 t a b 16 | Removing the Battery-LED Board[...]

  • Page 17

    book.book Page 17 Mond ay, June 25, 2012 1 1:55 AM Replacing the Battery-LED Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside [...]

  • Page 18

    book.book Page 18 Mond ay, June 25, 2012 1 1:55 AM 1 Removing the System Badge WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y ou[...]

  • Page 19

    book.book Page 19 Mond ay, June 25, 2012 1 1:55 AM 2 T urn the base-cover assembly over. 3 Starting at the indicator on the base -cover assembly, car efully turn the system badge over . 4 Release the tabs on the system badge from the slots on the base-cove assembly. 5 Lift the system badg e off the base-cover assembly. 2 1 1 s y s t e m b a d g e 2[...]

  • Page 20

    book.book Page 20 Mond ay, June 25, 2012 1 1:55 AM Replacing the System Badge WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our[...]

  • Page 21

    book.book Page 21 Mond ay, June 25, 2012 1 1:55 AM Removing the Battery WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Compu[...]

  • Page 22

    book.book Page 22 Mond ay, June 25, 2012 1 1:55 AM Replacing the Battery WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Comp[...]

  • Page 23

    book.book Page 23 Mond ay, June 25, 2012 1 1:55 AM Removing the Memor y Module(s) WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y[...]

  • Page 24

    book.book Page 24 Mond ay, June 25, 2012 1 1:55 AM Procedure CAUTION: T o prevent damage to the memor y-module connector , do not use tools to spread the me mory module securing clips. 1 Using your fingertips, carefu lly spread apart the securing clips on each end of t he memory-module connector until t he memory module pops up. 2 Remove the memory[...]

  • Page 25

    book.book Page 25 Mond ay, June 25, 2012 1 1:55 AM Replacing the Memor y Module(s) WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside [...]

  • Page 26

    book.book Page 26 Mond ay, June 25, 2012 1 1:55 AM Postrequisites 1 If you are replacing the secondary memory-module, go to step 3. 2 If you are replacing the primary memory-module: a Follow the instructions from step 2 to st ep 10 in "Replacing the System Board" on page 57. b Replace the processor heat-sink. See "Replacing the Proce[...]

  • Page 27

    book.book Page 27 Mond ay, June 25, 2012 1 1:55 AM Removing t he Hard Drive WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our C[...]

  • Page 28

    book.book Page 28 Mond ay, June 25, 2012 1 1:55 AM 4 Disconnect the interposer from the hard-drive assembly. 5 Remove the screws that secure the hard-drive bracket to the hard drive. 6 Lift the hard-drive bracket off th e hard drive. 12 3 4 1 hard drive 2 sc rews (4) 3 hard-drive bracket 4 interposer 28 | Removing the Hard Drive[...]

  • Page 29

    book.book Page 29 Mond ay, June 25, 2012 1 1:55 AM Replacin g the Hard Drive WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 30

    book.book Page 30 Mond ay, June 25, 2012 1 1:55 AM Removing the Optical Drive WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our[...]

  • Page 31

    book.book Page 31 Mond ay, June 25, 2012 1 1:55 AM 2 Lift the connector latch and, using the pu ll-tab, disconnect the optical-drive cable from the system board. 3 Peel the optical-drive cable from the fan . 4 Remove the coin-cell-battery cable from the routing guides on the optical-driv e bracket. 5 Remov e the screw that secure s the optical-driv[...]

  • Page 32

    book.book Page 32 Mond ay, June 25, 2012 1 1:55 AM 7 Remove the screws that secure the inte rposer to the optical-drive assembly . 8 Disconnect the interposer from the optical-drive assembly. 2 1 3 1 optical-drive assembly 2 screws (2) 3 i n t e r p o s e r 9 Remove the screw that secur es the opti cal- drive bracket to the optical drive. 10 Remove[...]

  • Page 33

    book.book Page 33 Mond ay, June 25, 2012 1 1:55 AM Replacin g the Opti cal Drive WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y [...]

  • Page 34

    book.book Page 34 Mond ay, June 25, 2012 1 1:55 AM 3 Removing the Wi reless Mini-Card WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Insi[...]

  • Page 35

    book.book Page 35 Mond ay, June 25, 2012 1 1:55 AM Replacing the W ireless Mini-Card WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Insid[...]

  • Page 36

    book.book Page 36 Mond ay, June 25, 2012 1 1:55 AM Removing the mSA T A Card WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 37

    book.book Page 37 Mond ay, June 25, 2012 1 1:55 AM Replacin g the mSA T A Card WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y ou[...]

  • Page 38

    book.book Page 38 Mond ay, June 25, 2012 1 1:55 AM Removing the Coin-Cell Batter y WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside [...]

  • Page 39

    book.book Page 39 Mond ay, June 25, 2012 1 1:55 AM 3 Peel the mylar from the coin-cell battery. 4 Disconnect the coin-cell-battery cable from the system board. 5 Note the coin-cell battery-cable routing and r emove the cable from the optical-driv e bracket. 6 Peel the coin-cell battery from the palm-rest assembly. 7 Lift the coin-cell battery and r[...]

  • Page 40

    book.book Page 40 Mond ay, June 25, 2012 1 1:55 AM Replacing the Coin-Cell Batter y WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside[...]

  • Page 41

    book.book Page 41 Mond ay, June 25, 2012 1 1:55 AM Removing the Fan WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Computer&[...]

  • Page 42

    book.book Page 42 Mond ay, June 25, 2012 1 1:55 AM Replac ing th e Fan WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Comput[...]

  • Page 43

    book.book Page 43 Mond ay, June 25, 2012 1 1:55 AM Removing the Processor Heat- S ink WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Insi[...]

  • Page 44

    book.book Page 44 Mond ay, June 25, 2012 1 1:55 AM Replacin g the Pro cessor He at- Sink WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working I[...]

  • Page 45

    book.book Page 45 Mond ay, June 25, 2012 1 1:55 AM Removing the I/O Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 46

    book.book Page 46 Mond ay, June 25, 2012 1 1:55 AM Replacing the I/O Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Co[...]

  • Page 47

    book.book Page 47 Mond ay, June 25, 2012 1 1:55 AM Removing the Speakers WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Comp[...]

  • Page 48

    book.book Page 48 Mond ay, June 25, 2012 1 1:55 AM 6 Lift the speakers, along with the speaker cable, away from the palm-rest assembly. 7 6 5 4 3 2 1 1 speaker cable 2 connector latch 3 pull-tab 4 I/O-board cable 5 screws (2) 6 speakers (2) 7 t a p e 48 | Removing the Speakers[...]

  • Page 49

    book.book Page 49 Mond ay, June 25, 2012 1 1:55 AM Replacing the Speakers WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 50

    book.book Page 50 Mond ay, June 25, 2012 1 1:55 AM Removing the Power/Batt er y Status-Light Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After[...]

  • Page 51

    book.book Page 51 Mond ay, June 25, 2012 1 1:55 AM 5 Lift the power/b attery status-light board at an ang le to remove it from the tab on the palm-rest assembly, and lift the power/battery status-light board along with it s cable off the palm-r est assembly . 4 2 1 8 7 6 3 5 1 connector latc h 2 pull-tab 3 tape 4 power/battery status-light cable 5 [...]

  • Page 52

    book.book Page 52 Mond ay, June 25, 2012 1 1:55 AM Replacin g the Pow er/Batt er y Status-Light Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " Af[...]

  • Page 53

    book.book Page 53 Mond ay, June 25, 2012 1 1:55 AM Removing the System Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 54

    book.book Page 54 Mond ay, June 25, 2012 1 1:55 AM Procedure NOTE: Your computer’s Service Tag is stored under the system badge. You must enter the Service Tag in the BI OS after you replace the system board. NOTE: Before disconnecting the cables from the system board, note the location of the connectors so that you can recon nect them correctly [...]

  • Page 55

    book.book Page 55 Mond ay, June 25, 2012 1 1:55 AM 3 Using the pull-tab, disconnect the di splay cable from the system board. 4 Disconnect the speaker cable, coin-cell-ba ttery cable, I/O-board grounding cable, and camera cable from the system board. 5 Lift the connector latches and, using the pu ll-tab, disconnect the I/O-board cable, keyboard cab[...]

  • Page 56

    book.book Page 56 Mond ay, June 25, 2012 1 1:55 AM 6 Remove the screws that secure the system-board assembly to the palm-rest assembly. 7 Lift the system-board assembly at an angle and release the ports on the system board from the slots on the palm-rest assembly . 8 Slide and remove the system-board assembly from the tab on the palm-rest assembly.[...]

  • Page 57

    book.book Page 57 Mond ay, June 25, 2012 1 1:55 AM Replacing the System Board WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our[...]

  • Page 58

    book.book Page 58 Mond ay, June 25, 2012 1 1:55 AM Postrequisites 1 Replace the processor heat-sink. See "Replacing the Processor Heat- S ink" on page 44. 2 Replace the fan. See "Replacing the Fan" on page 42 3 Follow the instructions from step 4 to st ep 6 in "Replacing the Hard Drive" on page 29. 4 Replace the mSAT A[...]

  • Page 59

    book.book Page 59 Mond ay, June 25, 2012 1 1:55 AM Removing the Air V ent WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 60

    book.book Page 60 Mond ay, June 25, 2012 1 1:55 AM 1 2 Procedure Peel the mylar from the camera-cable routing. 1 1 m y l a r Note the camera-cable routing and remove the cable from the routing guides on the air vent. 1 2 1 camera-cable routing 2 air vent 60 | Removing the Air Vent[...]

  • Page 61

    book.book Page 61 Mond ay, June 25, 2012 1 1:55 AM 3 Remove the screws that secure the air vent to the palm-rest assembly. 4 Lift the air vent off the palm-rest assembly. 1 2 1 s c r e w s ( 4 ) 2 a i r v e n t Removing the Air Vent | 61[...]

  • Page 62

    book.book Page 62 Mond ay, June 25, 2012 1 1:55 AM Replacin g the Ai r V ent WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 63

    book.book Page 63 Mond ay, June 25, 2012 1 1:55 AM Removing the Keyb oard WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 64

    book.book Page 64 Mond ay, June 25, 2012 1 1:55 AM Procedure CAUTION: The keycaps on the keyboa rd are fragile, easily dislodged, and time-consuming to repla ce. Be careful when removing and handling the keyboar d. 1 Remove the screws that secure the keyboard bracket to the palm-rest asse mbly . 2 Lift the keyboard bracket away from the palm-rest a[...]

  • Page 65

    book.book Page 65 Mond ay, June 25, 2012 1 1:55 AM Replac ing th e Keybo ard WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 66

    book.book Page 66 Mond ay, June 25, 2012 1 1:55 AM Removing t he Displ ay WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 67

    book.book Page 67 Mond ay, June 25, 2012 1 1:55 AM 3 Procedure 1 Remove the screws that secure the display hinges to the palm-rest assembly. 2 Open the palm-rest assembly as far as possible. 1 2 3 1 screws (6) 2 disp lay hinges (2) 3 palm-rest assembly Slide and remove the tabs on the palm-r est assembly from the display hinges. 1 3 2 1 palm-rest a[...]

  • Page 68

    book.book Page 68 Mond ay, June 25, 2012 1 1:55 AM Replacin g the D isplay WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Co[...]

  • Page 69

    book.book Page 69 Mond ay, June 25, 2012 1 1:55 AM Removing the Palm Rest WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our Com[...]

  • Page 70

    book.book Page 70 Mond ay, June 25, 2012 1 1:55 AM 3 Procedure 1 Remove the screws that secure the palm rest to the display hinges. 2 Open the palm rest as far as possible. 1 2 3 1 screws (6) 2 disp lay hinges (2) 3 p a l m r e s t Slide and remove the palm rest from the display hinges. 1 3 2 1 display 2 tabs (2) 3 p a l m r e s t 70 | Removing the[...]

  • Page 71

    book.book Page 71 Mond ay, June 25, 2012 1 1:55 AM Replac ing the Palm Re st WARN ING: Before working inside your computer , read the safety information that shipped with your computer and follow the steps in " Before Y ou Begin" on page 8. After working inside your co mputer , follow the instructions in " After Working Inside Y our [...]

  • Page 72

    book.book Page 72 Mond ay, June 25, 2012 1 1:55 AM Flashing the BIOS The BIOS may require flashing when an update is available or when replacing the system board. To flash the BIOS: 1 T urn on the computer . 2 Go to supp ort.dell.c om/support /downloads . 3 Locate the BIOS update file for your computer: NOTE: The Service T ag for your computer is l[...]