Lenovo B490 Support and Manuals
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Can I Change The Processor To I3
Hii need to upgrade my laptop processor. which i3 process can use in this lap
Hii need to upgrade my laptop processor. which i3 process can use in this lap
(Posted by vinojxavier 6 years ago)
How Many Ram Solt Is There In Lenovo B490
how many ram solt is there in lenovo b490
how many ram solt is there in lenovo b490
(Posted by PALANIVIGNESH96 6 years ago)
Bootmgr Is Missing Press Ctrl Alt Del To Restart
How Can I Fix It?Lenovo 20207When I Restart, The screen show me "bootmgr is missing press ctrl+alt+d...
How Can I Fix It?Lenovo 20207When I Restart, The screen show me "bootmgr is missing press ctrl+alt+d...
(Posted by robbiyanta25 8 years ago)
Lenovo B490 Videos
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Popular Lenovo B490 Manual Pages
Hardware Maintenance Manual - Page 2
Note: Before using this information and the product it supports, be sure to restrictions set forth in Contract No. GS-35F-05925.
First Edition (October 2012) © Copyright Lenovo 2012. 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...
Hardware Maintenance Manual - Page 3
... 94 Trademarks 94
© Copyright Lenovo 2012
i Lenovo B490 37
Specifications 37 Status indicators 38 Fn key combinations 39
Chapter 6. Locations 77
Front view 77 Right-side view 78 Bottom and left-side view 78
Chapter 9. Related service information 33
Recovering the computer settings 33 Passwords 33
Power-on password 34 Supervisor password 34 Power management 34 Screen...
Hardware Maintenance Manual - Page 5
... this manual to troubleshoot problems effectively.
• Before servicing a Lenovo product, be sure to troubleshoot problems.
The manual is intended only for
servicing computers. • The product-specific section includes service, reference, and product-specific parts information. Important:
• This manual is divided into the following Lenovo® products. Machine Lenovo B490...
Hardware Maintenance Manual - Page 33
... by this manual. Restart the computer if necessary.
"Strategy for replacing FRUs" on page 28
Important: BIOS and device driver fixes are installed before replacing any computer unless you are instructed to http://www.lenovo.com/support. 2. "Important notice for replacing and servicing FRUs: • If you have both a processor board and a system board. To download software fixes...
Hardware Maintenance Manual - Page 35
... :
1. If the error does not recur, do with the computer, determine whether the damage is recommended to replace a nondefective FRU.
Name and phone number of service 3. Date of service technician 2. Failing FRU name and part number 7. Before checking problems with a hardware defect, such as copying, saving, or formatting. Single failures can occur for repair costs if the...
Hardware Maintenance Manual - Page 36
...; Forgotten computer password (making the computer unusable) • Sticky keys caused by nonwarranted activities: • Missing parts might be a symptom of unauthorized service or modification. • If the spindle of the ac power adapter for correct continuity and installation.
• If the computer does not charge during operation, go to Chapter 5 "Lenovo B490" on the computer...
Hardware Maintenance Manual - Page 40
... passwords has been set, a prompt for it will not be started . Power management
Note: Power management modes are not supported for...set, the password prompt will be replaced for APM operating system.
To end screen blank mode and resume normal operation, press any key. • You have pressed Fn+F2. The system board must be displayed on the power button.
34 Hardware Maintenance Manual...
Hardware Maintenance Manual - Page 43
.... • Windows 8: From the desktop, move the cursor to
display the charms. Then click Settings ➙ PC info.
Lenovo B490
This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn key combinations" on some models for the Lenovo B490 models. Memory •...
Hardware Maintenance Manual - Page 45
...Fn+F10 Fn+F11 Fn+F12 Fn+PgUp Fn+PrtSc Fn+Home
Description Launches the camera and audio settings window. To resume normal operation, press the Fn key only. Enables the backlight feature... track Multimedia control: Skip to switch between 5% and 20%, and the charging is continuing. Lenovo B490 39
Enables or disables the touch pad. When the battery charge level reaches 80%, the battery...
Hardware Maintenance Manual - Page 47
Read this machine:
• Keep the screw kit in this manual can resolve some problems with a replacement part you can find the manual for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of the replacement CRU. Installation of self-service CRUs is your Lenovo Limited Warranty documentation for full details. You might be found at...
Hardware Maintenance Manual - Page 49
...-service CRUs, you can either install the CRU yourself or you can find the manual for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of the replacement CRU. and (2) you have made sure that have been trained and certified. Before replacing any interconnecting cables. Chapter 7.
If you intend on -screen instructions...
Hardware Maintenance Manual - Page 83
Locations
This chapter presents the locations of the indicators, see "Status indicators" on page 38.
© Copyright Lenovo 2012
77
Chapter 8. Front view
2 1 2
4 9 8
3 4
7 6
5
Figure 1. Lenovo B490 front view
1 Integrated camera (on some models) 2 Wireless module antennas 3 Status indicators 1 4 Speakers 5 Media card reader slot
6 Touch pad and touch pad buttons 7 Power and battery ...
Hardware Maintenance Manual - Page 84
...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... modules, hard disk drive, and wireless cards are located underneath the bottom slot cover.
78 Hardware Maintenance Manual
Hardware Maintenance Manual - Page 85
... information and replacement instructions are isolated parts within thirty (30) days of your receipt of the service parts. • "Overall" on page 80 • "LCD FRUs" on page 83 • "Keyboard" on page 85 • "Miscellaneous parts" on page 87 • "ac power adapters" on page 88 • "Power cords" on installing the CRU, Lenovo will be charged...
Hardware Maintenance Manual - Page 89
...B820 1.7G Q0 2M 2cPGA processor 20 CPU, i5-3210M Ivy Bridge L-0 3MB 2c PGA 2.5GHz STD 35W processor 20 CPU, i3-3110M Ivy Bridge L-0 3MB 2c PGA 2.3GHz ... 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 "Parts list LCD" on page 85.) - Chapter 9. Parts list-Overall (continued) No. Table 3. ac power adapter...
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