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  #1  
Old 27-08-2011
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Join Date: Oct 2010
Posts: 163
sleep mode on T400 lenovo laptop

I am using Lenovo T400 normally half of the times it hangs when I keep it to sleep screen get blanks, it does not reach to sleep mode, after what only I can do is to manually I have to turn it off . I'm still using pre-installed operating system that is windows Vista business, with all the mostly inbuilt Lenovo tools. Is there any solution to this problem please help me ..???
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  #2  
Old 27-08-2011
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Join Date: Nov 2009
Posts: 3,398
Re: sleep mode on T400 lenovo laptop

try to fix your BCD file I think this will help you
1. Run command prompt from administrator account

2 execute the following command:
bcdedit -enum all
check for "Resume from Hibernate" in the output from the command written above
Resume from Hibernate
identifier {3d8d3081-33ac-11dc-9a41-806e6f6e6963}
device partition=C:
path \Windows\system32\winresume.exe
description Windows Vista (TM) Enterprise (recovered)
inherit {resumeloadersettings}
filedevice partition=C:
filepath \hiberfil.sys
pae Yes
debugoptionenabled No

3. Once you have found it, copy the value for identifier

4. Run the following command: bcdedit /deletevalue {3d8d3081-33ac-11dc-9a41-806e6f6e6963} inherit

5. check hibernation and also for sleep mode.
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  #3  
Old 27-08-2011
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Join Date: Jun 2009
Posts: 4,579
Re: sleep mode on T400 lenovo laptop

actually the Lenovo T400 with Vista 32-bit (Business) do not woke up from sleep mode. on time-out or even manually and it got hang. To solve this problem go to BIOS by holding d F1 while system is getting start. From there open the "Security" page. Switch the Security Chip to "Active" after that press F10 so that it will save and exit from, BIOS
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  #4  
Old 27-08-2011
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Join Date: Jul 2009
Posts: 969
Re: sleep mode on T400 lenovo laptop

if your Lenovo laptop is under warranty than your problem will get solved Issue has been fixed by under warranty. They are solving this problem by replacing the system board. In first attempt they have tried to replace HDD but it wont helped them,so don?t waste time in implementing new thing. if your laptop comes under warranty period then get it done by the manufacturer .
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