Lenovo B490 Support Question
Lenovo B490 Support Question
Find answers below for this question about Lenovo B490.Need a Lenovo B490 manual? We have 1 online manual for this item!
Question posted by vinojxavier on October 31st, 2017
Can I Change The Processor To I3
Hii need to upgrade my laptop processor. which i3 process can use in this lap
Current Answers
Related Lenovo B490 Manual Pages
Hardware Maintenance Manual - Page 2
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use, reproduction, or disclosure is subject to read the general information under Appendix A "Notices" on page 93. Note: Before using this information and the product it supports, be sure to restrictions set forth in Contract No...
Hardware Maintenance Manual - Page 3
... notices 41
Chapter 7. Parts list 79
Overall 80 LCD FRUs 83 Keyboard 85 Miscellaneous parts 87 ac power adapters 88 Power cords 89
Appendix A. Lenovo B490 37
Specifications 37 Status indicators 38 Fn key combinations 39
Chapter 6. Notices 93
Electronic emissions notices 94 Trademarks 94
© Copyright Lenovo 2012
i Removing and...
Hardware Maintenance Manual - Page 5
...; The product-specific section includes service, reference, and product-specific parts information. Use this manual
This manual provides service and reference information for the following sections: &#...manual is divided into the following Lenovo® products. Machine Lenovo B490
Machine type (MT) 3756, 3772, 20205, 20207
Use this manual to read all the information under Chapter 1 "Safety ...
Hardware Maintenance Manual - Page 7
Use a slow lifting force. this action removes the strain from the
muscles in a hazardous position. • Place removed covers and other conditions that you attempt to lift. 4. Safety information
This chapter presents following safety information that you need... hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other parts in the area...
Hardware Maintenance Manual - Page 8
...or electrical outlet. First, check that has exposed electrical circuits, observe the following precautions: - Use only one hand when working with a soft material that has hazardous voltages.
• Disconnect ...a machine that it , ask the customer to power-off position.
• If you need to insulate you when working with very high voltages; The surface is a complete circuit. ...
Hardware Maintenance Manual - Page 9
...any obvious non-Lenovo alterations.
This guide addresses only those items. You should use the following checklist at the same charge. If any unsafe conditions are sensitive to...signs of this inspection guide.
Check inside the unit for 0.1 ohm or less between objects. Use product-specific ESD procedures when they present: • Electrical hazards, especially primary power (primary...
Hardware Maintenance Manual - Page 10
...provide protection that the ESD protective devices you are wearing a wrist strap. • Use a grounded work surface. When handling ESD-sensitive parts: • Keep the parts... safety and correct system function. When working on a double-insulated or battery-operated system, use coax or connector-outside shells on these systems. -
Safety notices (multilingual translations)
The safety...
Hardware Maintenance Manual - Page 33
... Software. The BIOS and device drivers are customer-installable.
Go to replace either
the processor board or the system board, and replacing one .
© Copyright Lenovo 2012
27...problem, reinstall
the original FRU before completing the service action. Notes: If you need to improve the computer performance, you are instructed to http://www.lenovo.com/.... 4. Use the following : 1.
Hardware Maintenance Manual - Page 34
...try to run a low-level format before June 2006 are very sensitive.
RoHS compliant FRUs have been changed the symptoms.
Strategy for replacing a system board
Some components mounted on the market before replacing a ...June 2006
Current or original part Must be RoHS
Replacement FRU Must be used.
• Compliant FRUs identified in the Hardware Maintenance Manual or direct substitutions can be...
Hardware Maintenance Manual - Page 35
...a PC Card or the installation of an incompatible card • Improper disc insertion or use of an optical drive
© Copyright Lenovo 2012
29 Consider replacing a FRU only when .... If you suspect that the system was detected 6. Following is recommended to stress beyond normal use new nylon-coated screws. • Be extremely careful during such write operations as cosmic radiation,...
Hardware Maintenance Manual - Page 36
...damage caused by spilling a liquid onto the keyboard • Use of the ac power adapter may have been subjected to Chapter 5 "Lenovo B490" on page 37.
30 Hardware Maintenance Manual Turn off the...
+20
2
0
Note: Output voltage of pin no.2 of an incorrect ac power adapter on laptop products
The following :
• Replace the system board.
• If the problem persists, go to "Checking operational charging...
Hardware Maintenance Manual - Page 37
...
General checkout 31 Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that less than 50% of the total ... charging. If the battery status indicator or icon does not turn on the operating system you are using, do the following :
• Windows 7: Open the Power Manager program and click the Battery...
Hardware Maintenance Manual - Page 39
...in advance. - Changing the startup settings of the programs.
Passwords
As many as two passwords might be needed for you to... password.
© Copyright Lenovo 2012
33 During the restoring process, you to restore the computer settings to the help information ...For more files currently on the hard disk drive, you use the Product Recovery program to the factory default settings. Restoring...
Hardware Maintenance Manual - Page 40
... the password.
To enter sleep mode, press Fn+F1. The computer does not start until the password is no service procedure to the BIOS and change the system configuration.
To cause the computer to what occurs in the BIOS.
If any of the following: • Press the Fn key. • Open...
Hardware Maintenance Manual - Page 43
... the cursor to
display the charms. Then click Settings ➙ PC info. Processor • Windows 7: To view the system properties of the screen to the... monitor connector • 4-in-1 digital media card reader slot
© Copyright Lenovo 2012
37 Lenovo B490
This chapter presents the following product-specific service references and parts information: • "Specifications" on page...
Hardware Maintenance Manual - Page 45
...The battery is detached or the computer is continuing.
Lenovo B490 39 Fn key combinations
The following table describes the functions of...When the battery charge level reaches 20%, the blinking color changes to green.
• Orange: The battery discharge level ...the indicator is continuing. Table 2. Note: You also can use the Windows+P combination to the next track Enables or disables...
Hardware Maintenance Manual - Page 83
... 1 4 Speakers 5 Media card reader slot
6 Touch pad and touch pad buttons 7 Power and battery indicator1 8 Power button 9 Recovery button
1 For the description of the Lenovo B490 hardware components. Chapter 8. Locations
This chapter presents the locations of the indicators, see "Status indicators" on page 38.
© Copyright Lenovo 2012
77
Hardware Maintenance Manual - Page 84
... and left -side view
45 3 12
4 USB connector 5 ac power connector
1 2 3
10
4 5
8 76 9
Figure 3. Right-side view
Figure 2. Lenovo B490 right-side view 1 Combo audio jack 2 USB connector 3 Optical drive
Bottom and left -side view
1 Battery latch 2 Battery pack 3 Battery lock 4 Security keyhole 5 Fan louvers
6 ...
Hardware Maintenance Manual - Page 89
...processor 20 CPU, Intel B815 1.6G Q0 2M 2cPGA processor 20 CPU, Intel I3-2370M 2.4G J1 3M 2cPGA processor 20 CPU, Intel SNB I3-2350M 2.3G 3M J1 PGA processor 20 CPU, Intel SNB I3-2330M 2.2G 3M J1 PGA processor...102500362 N
102500440 N
102500433 N
102500421 N
102500435 N
90000220 N
90000979 N
LCD FRUs
In Lenovo B490 models, the type of LCD is 14-inch high definition (HD) TFT LCD (Table 4 "...
Hardware Maintenance Manual - Page 99
...A PARTICULAR PURPOSE. This information could include technical inaccuracies or typographical errors. these changes will be incorporated in any obligation to these measurements will be the same on ... publication at any license to you . Lenovo may use in implantation or other operating environments may make improvements and/or changes in the product(s) and/or the program(s) described ...
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