Friday, March 04, 2016

LENOVO B50–30 All-In-One Computer – Administrative password setting - Disassembling procedure – Personal computers Repair and service

Category: Personal Computer Repair and Service 

Contents of this article 

  • Setting Admin password 
  • Removing the back case 
  • Removing memory 
  • Removing optical drive 



LENOVO B5030

Setting, changing, or deleting an Administrator password
To set an Administrator Password, do the following:
Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9).
1. Start the BIOS Setup Utility program
2. From the Security menu, select Set Administrator Password and press the Enter key.
3. The password dialog box will be displayed. Type the password then press the Enter key.
4. Re-type the password to confirm, then press the Enter key. If you typed the password correctly, the password will be installed.
To change an Administrator Password, do the following:
1. Start the BIOS Setup Utility program .
2. From the Security menu, select Set Administrator Password and press the Enter key.
3. The password dialog box will be displayed. Type the current password then press the Enter key.
4. Type the new password, then press the Enter key. Re-type the password to confirm the new password.
If you typed the new password correctly, the new password will be installed. A Setup Noticed confirming that changes have been saved will be displayed.
To delete a previously set Administrator Password, do the following :
1. From the Security menu, select Set Administrator Password and press the Enter key.
2. The password dialog box will be displayed. Type the current password and press the Enter key.
3. To delete an Administrator Password, leave each new password line item blank, then press the Enter key. A Setup Notice confirming that changes have been saved will be displayed.
4. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option.
5. Select Save changes and Exit from the menu.
Power-On Password
When a Power-On Password is set, you cannot start the BIOS Setup Utility program until a valid password is typed from the keyboard.
Setting, changing, or deleting a Power-On Password
Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9
To set a Power-On Password, do the following:
1. Start the BIOS Setup Utility program
2. From the Security menu, select Set Power-On Password and press the Enter key.
3. The password dialog box will be displayed. Type the password, then press the Enter key.
4. Re-type the password to confirm. If you typed the password correctly, the password will be installed.
To change a Power-On Password, do the following:
1. Start the BIOS Setup Utility program
2. From the Security menu, select Set Power-On Password and press the Enter key.
3. The password dialog box will be displayed. Type the current password then press the Enter key.
4. Type the new password, then press the Enter key. Re-type the password to confirm the new password.
If you typed the new password correctly, the new password will be installed. A Setup Noticed confirming that changes have been saved will be displayed.
To delete a previously set Power-On Password, do the following :
1. From the Security menu, select Set Power-On Password and press the Enter key.
2. The password dialog box will be displayed. Type the current password and press the Enter key.
3. To delete the Power-On Password, leave each new password line item blank, then press Enter. A Setup
Notice confirming that changes have been saved will be displayed.
4. Return to the BIOS Setup Utility program menu and select the Exit option.
5. Select Save changes and Exit from the menu.
DISASSEMBLING PROCEDURE 
Removing the stand base
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right views” and “Rear view” for help with locating the various connectors.
Step 4. Twist the hand screw ring counter-clockwise until the base comes loose to release the stand base from the stand holder.1,2

Step 5. Slide the stand base out from the holder then put it aside. 3
Removing the foot cover
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right views” and “Rear view” for help with locating the various connectors.
Step 4. Remove the foot base. Refer to “Removing the foot base”.
Step 5. Lift up the stand holder then slide out the foot cover as shown.
Step 6. To reattach the foot cover:
a. Lift up the stand holder.
b. Line up the foot cover with mounting holes on the back of the computer, then slide it back into position.
Replacing the memory module
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right views” and “Rear view” for help with locating the various connectors.
Step 4. Remove the stand base. Refer to “Removing the stand base”.
Step 5. Remove the foot cover. Refer to “Removing the foot cover”.
Step 6. Remove the memory shielding as shown.
Step 7. Push out the latches on both sides of the memory socket to release the memory module 1 and gently pull the memory module upward to remove it from its socket. 2
Step 8. To install the new memory module:
a. Align the new memory module with the memory socket, then insert it and push down on the top edge. Make sure the latches lock the memory module in place.
b. Reattach the memory shielding.
Step 9. Reattach the foot cover and stand base.
Replacing the hard disk drive
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right views” and “Rear view” for help with locating the various connectors.
Step 4. Remove the stand base. Refer to “Removing the stand base”.
Step 5. Remove the foot cover. Refer to “Removing the foot cover”.
Step 6. Lift out the hard disk drive and bracket as shown.
Step 7. Push the lock pins outward to release the hard disk drive from the bracket.
Step 8. To install the new hard disk drive:
a. Line up the new hard disk drive with the bracket and secure it with the pins.
b. Connect the data and power cables to the new hard disk drive.
c. Slide the hard disk drive and bracket back into position.
Step 9. Reattach the foot cover and stand base.
Replacing the optical drive
Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
Step 1. Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step 2. Unplug all power cords from electrical outlets.
Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right views” and “Rear view” for help with locating the various connectors.
Step 4. Remove the stand base. Refer to “Removing the stand base”.
Step 5. Remove the foot cover. Refer to “Removing the foot cover”.
Step 6. Locate the optical removal notch, and then use a screw driver push the optical drive out.
Step 7. Push a small iron stick (paper clip) into the small hole on the optical drive cover so that the disk springs out as shown.
Step 8. Remove the 2 screws that secure the optical drive to the metal bracket. 1
Step 9. Use a small flat head screwdriver to press and push out the pins that secure the cover to the disk. 2 3.
Step 10. Separate the cover from the defective optical drive.
Step 11. To install the new optical drive:
a. Align the new optical drive with the cover, and then push the cover back into position.
b. Slide the new optical drive into the drive bay.
Step 12. Reattach the foot cover and stand base.