Lenovo B305 Service Manual

							Chapter 8. Replacing hardware
      59
Replacing the power cord or power adapter
Attention
Do not remove the computer cover or attempt any repair before 
reading the “Important safety information” in the Safety and Warranty 
Guide that was included with your computer or in the Hardware 
Maintenance Manual (HMM) for the computer. To obtain copies of 
the Safety and Warranty Guide or HMM, go to the Support Web site at: 
http://consumersupport.lenovo.com. 
To replace the power cord and power adapter:
1. Remove any media (diskettes, CDs, or memory cards) from the drives, 
shut down the operating system, and turn off all attached devices and 
the computer. 
2.  Locate the connector for the power cord. Refer to “Rear view”. 
3. Disconnect the failing power cord and adapter from the computer and 
connect the new power cord and adapter to the same connector. 
						

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Additional Service
Information
9
This chapter provides additional information that the service 
representative might find helpful.
Power management 
Power management reduces the power consumption of certain 
components of the computer such as the system power supply, processor, 
hard disk drives, and some monitors. 
Automatic configuration and power interface (ACPI) 
BIOS 
Being an ACPI BIOS system, the operating system is allowed to control 
the power management features of the computer and the setting for 
Advanced Power Management (APM) BIOS mode is ignored. Not all 
operating systems support ACPI BIOS mode. 
Automatic Power-On features 
The Automatic Power-On features within the Power Management menu 
allow you to enable and disable features that turn on the computer 
automatically. Resume On RTC Alarm: You can specify a date and time at which the  
• 
computer will be turned on automatically. This can be either a single 
event or a daily event.
On LAN Wake Up: This feature allows LAN adapter card to wake the 
• 
System. 
						

							Appendix. Statement
      61
Statement
A
Thank you for using Lenovo products.
Carefully read all of the documents shipped with your computer before 
you install and use the product for the first time. Lenovo will not assume 
responsibility for damage that results from failure to operate the product 
according to the instructions and requirements described in the manuals 
included with your computer. Lenovo will not assume responsibility for 
any loss incurred except those resulting from installation or operations 
carried out by Lenovo professional service staff.
Lenovo has made every attempt to ensure that the manuals included with 
your computer are correct and accurate, but makes no guarantee that the 
publications are error free.
To provide better service, Lenovo reserves the right to improve and/or 
modify the products and software programs described in the manuals 
included with your computer and the content of the manual at any time 
without notice. 
All of the manuals included with your computer are provided to help you 
use Lenovo products appropriately, but do not provide any description of 
the software/hardware configuration for the product. For configuring the 
product, refer to related contracts (if any), the product packing list for the 
product or the retailer.
The content of the manuals included with your computer is protected 
by copyright laws and rules. None of the manuals included with your 
computer may be reproduced or transcribed by any means, or transmitted 
through wired or wireless networks in any form, or translated into any 
language without the prior written permission of Lenovo. All Lenovo 
publications included with your system are protected by Copyright © 
2009 Lenovo.
The software and hardware configuration included with your computer 
depends on the actual configuration of the computer and may differ from 
other similar models. 
						

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Customers are welcome to contact us regarding any inconsistency 
between the product and the manuals included with your 
computer. For the latest information or if you have any questions 
or comments, please visit the consumer support website at: 
http://consumersupport.lenovo.com.
Lenovo is a registered trademark of Lenovo.
Microsoft, Windows, and Windows Vista are trademarks of the Microsoft 
group of companies.
Intel Inside is a registered trademark of Intel.
AMD, the AMD Arrow logo, ATI, the ATI logo, AMD Athlon, AMD LIVE, AMD 
Opteron, AMD Phenom, AMD Sempron, Avivo, Catalyst, Cool ‘n’ Quiet, 
CrossFireX, Overdrive, Powerplay, Radeon, The Ultimate Visual Experience, 
and combinations thereof are trademarks of Advanced Micro Devices, Inc. 
in the United States and/or other jurisdictions.  
The table above includes the logo and registered trademarks of Lenovo 
and its partners.
Other registered trademarks mentioned in any or all of the manuals 
included with your computer belong to the specific company respectively.
The manual included with your computer is protected by copyright laws 
and rules. None of the manuals included with your computer may be 
reproduced or transcribed by any means, or transmitted through wired or 
wireless networks in any form, or translated into any language without the 
prior written permission of Lenovo.
The names or marks of companies mentioned in the manuals included 
with your computer or this document are only used to assert trademark 
rights, and they do not necessarily indicate that related software or 
hardware is included. The actual configuration of the product depends on 
the description of the specific model.