Lenovo H420 Support Question
Lenovo H420 Support Question
Find answers below for this question about Lenovo H420.Need a Lenovo H420 manual? We have 5 online manuals for this item!
Question posted by angeejay on July 28th, 2012
Since I Install My At&t Modem It Shuts Down Computer Every Time I Surf On Intern
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Related Lenovo H420 Manual Pages
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 4
... 6 Heat and product ventilation 7 Operating environment 8 Electrical current safety information 9 Lithium battery notice 10 Modem safety information 10 Laser compliance statement 11 Power supply statement 12 Products with television tuner options installed 12 Note to CATV system installer 12 Example of antenna grounding 13 Data safety 14 Cleaning and maintenance 15 Using headphones...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 11
...strip input rating. Consult an electrician for an approved outlet adapter or to insert it is shut down to be damaged or corroded, do not use with your computer, data, or attached... at least five seconds after the computer is replaced by a qualified electrician. If power strips are installing. Plugs and outlets
If a receptacle (power outlet) that draw large amounts of the branch circuit ...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 14
..., or structural damage.
• Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.
• Connect and disconnect cables as described in the following table when installing, moving, or opening covers on any equipment when there is hazardous.
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 15
...telephone line
has been disconnected at the network interface. • Use caution when installing or modifying telephone lines. • Avoid using telephone equipment, always follow basic ...8226; Never install telephone jacks in the state of California, U.S.A.
There may apply. Modem safety information
CAUTION To reduce the risk of the battery as : • Never install telephone wiring ...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 16
... Class 3A or Class 3B laser diode. Caution Use of controls or adjustments or performance of the International Electrotechnical Commission (IEC) 60825-1 and CENELEC EN 60 825-1 for Class 1 laser products.
Note ...of the CD or DVD drive could result in the U.S. When a CD or DVD drive is installed, note the following statement.
Do not stare into the beam, do not view directly with a CD...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 19
...sure the antenna or cable system is grounded as contact with them may be fatal. When installing an outside antenna system should be located in the form of files or directories that accessing...work.
Be aware that were not created by you have adequate protection in the vicinity of time, unplug it from touching such power lines or circuits, as to provide some protection against voltage...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 20
...directly on a soft cloth and then wipe the computer surfaces.
Adjustment of time at high volume can be dangerous due to maximum increases the earphones and headphones output voltage ...and therefore the sound pressure level. Shut down the computer and then disconnect the power cord before cleaning the computer.
The...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 35
... you . You are available from Lenovo to have Lenovo install Self-service CRUs for you to return your product and deliver it to return a defective CRU, if any time upon request. A shipping container will be repaired or exchanged at any , will be charged for your receipt of the replacement.
2. A courier will arrange...
Lenovo IdeaCentre B3 Safety and Warranty Guide V4.1 - Page 38
... in all the manuals included with your computer and the content of the manual at any time without prior written permission of Lenovo Copyright © 2007, 2008 Lenovo. Carefully read all ...rules.
To provide better service, Lenovo reserves the right to help you install and use the product for the first time for better use Lenovo products appropriately, but we cannot guarantee that it...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 7
...the machine to work alone under hazardous conditions or near power supplies -
Removing or installing main units
•• Before you are: hammering, drilling soldering, cutting wire...injury or equipment damage, disconnect the attached power cords, telecommunication systems, networks, and modems before : - Working near equipment that does not insulate you can be hazardous. Performing...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 11
..., telephone and communication cables is evidence of fire, water, or structural damage. •• Disconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures. •• Connect and disconnect cables as described in the following table when...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 18
... Utility program menu lists items that hardware has been removed or new hardware has been installed in the Setup Utility program. When you start this method, repeatedly press and release .... b. When working with the Setup Utility program menu, you are using this procedure, shut down the operating system and turn on the computer.
Starting the Setup Utility program
To ...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 24
... the F1 key then turn off the computer.
2. If you are using this procedure, shut down the operating system and turn on the computer.
If your computer.
For more information,...The Setup Utility program menu lists items that hardware has been removed or new hardware has been installed in the Setup Utility program. b.
When you type your computer, regardless of which operating ...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 34
...or set keyboardless operation in Setup to a weak CMOS battery. The CMOS battery is correctly installed. Replace the battery. The BIOS then ignores the missing keyboard during POST. The IDE/...is properly connected to reboot the machine. Hardware Maintenance Manual
POST Error Message CMOS Date/Time Not Set CMOS Battery Low CMOS Checksum Bad
Primary Master Hard Disk Error Primary Slave ...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 35
...been removed, and the problem continues, replace the system board.
33 If all devices and adapters have bootable media.
External devices (modem, printer, or mouse) b. Make sure the boot drive is jumpered as a slave. 1.
Power-off the computer. 2. .... Remove or disconnect the following components (if installed) one at a
time. Power-on the computer to re-test the system. 4.
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 60
... cover or attempt any media (disks, CDs, or memory cards) from the drives, shut down the operating system, and turn off the computer and all power cords from the computer. 5. Connect the new mouse cable to the "Completing the installation."
58 Disconnect the defective mouse cable from electrical outlets. 3. Refer to "Locating...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 61
...routed correctly before replacing the computer cover.
3. Unplug all power cords from the drives, shut down the operating system, and turn off the computer and all components have been reassembled ... that the rail guides on the front of the computer cover engage the rails. Completing the installation
After replacing a new part or parts, you may be connected to "Locating components" for ...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 63
...for Advanced Power Management (APM) BIOS mode is ignored.
This can specify a date and time at which support this system.
61 Automatic Power-On features
The Automatic Power-On features ... and power interface (ACPI) BIOS
Being an ACPI BIOS system, the operating system is detected on the internal modem.
•• Resume On RTC Alarm: You can be either a single event or a daily event...
Lenovo H4 Series Hardware Maintenance Manual V2.0 - Page 65
... of the manuals included with your computer is not responsible for the first time. The software interface and function and hardware configuration described in the manuals included... manuals included with your computer, or operate the product inappropriately.
Statement
Thank you install and use Lenovo's products appropriately. Statement
AAppendix.
None of the publication.To provide...
Lenovo H420 User Guide V2.0 - Page 27
...the problem started, review the
installation procedures and ensure that the part is correctly installed. • If a peripheral ...power cord is securely connected to :
• Change the desktop background • Select a screen saver • Select colors... the appropriate options to the
connector on ;
if not, shut down the exact message. Setting display background and icon properties:...
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