3.1 first of all we should check – is the screen perfectly blank, ot it's just backlit did not turned on. if there's no backlite and desktop appears on the screen and slightly visible – that may be BIOS problem. So you should try to update BIOS firmware, or if that doesnt work – try to rewrite it with older version of firmware.

3.2 if the screen perfectly blank – there may be problems with bios APM or ACPI settings ( S1/S2/S3 differs on providing with power internal hardware – read about it here http://msdn.microsoft.com/en-us/library/ms79827… ) if there any and also – with some additional h/w driver installed in OS. the solution is to change Power Managment settings in bios ( or just reset them to default ), check power managment settings in windows ( what mode has been used – hybernate or suspend?), check in device managment – does PC ACPI mode supported, and try to disable additional hardware drivers installed in system – i.e. bluetooth dongle, tvtuners etc…

may be this issues could be usefull:
http://support.microsoft.com/kb/242495/en/
http://support.microsoft.com/kb/907477/en/
http://support.microsoft.com/?kbid=923232

this patch fixes some problems too:
http://www.microsoft.com/downloads/details.aspx…

to disable additional hardware use win+r->devmgmt.msc, right click on device, properties, disable

to disable additional software, drivers and services use win+r->msconfig (sorry, my interface isnt in english) in common menu choose “diagnostic startup” or something like this (2nd from the top)

3.3 concerning video driver problem – yep, may be it must be updated, but sometimes hardware better works with older version of drivers than with updated one. This can solve the problem too.

3.4 at last – it could be system fault – to solve – use win+r-> sfc.exe /scannow ( this tool will check windows system files, and if any of the are corrupted – will restore them form windows installation (or recovery) disk )

and afterall may be a good reason to check system event viewer, is there any errors or warnings.

that's it for question 3

3.1 first of all we should check – is the screen perfectly blank, ot it's just backlit did not turned on. if there's no backlite and desktop appears on the screen and slightly visible – that may be BIOS problem. So you should try to update BIOS firmware, or if that doesnt work – try to rewrite it with older version of firmware.

3.2 if the screen perfectly blank – there may be problems with bios APM or ACPI settings ( S1/S2/S3 differs on providing with power internal hardware – read about it here http://msdn.microsoft.com/en-us/library/ms79827… ) if there any and also – with some additional h/w driver installed in OS. the solution is to change Power Managment settings in bios ( or just reset them to default ), check power managment settings in windows ( what mode has been used – hybernate or suspend?), check in device managment – does PC ACPI mode supported, and try to disable additional hardware drivers installed in system – i.e. bluetooth dongle, tvtuners etc…

may be this issues could be usefull:
http://support.microsoft.com/kb/242495/en/
http://support.microsoft.com/kb/907477/en/
http://support.microsoft.com/?kbid=923232

this patch fixes some problems too:
http://www.microsoft.com/downloads/details.aspx…

to disable additional hardware use win+r->devmgmt.msc, right click on device, properties, disable

to disable additional software, drivers and services use win+r->msconfig (sorry, my interface isnt in english) in common menu choose “diagnostic startup” or something like this (2nd from the top)

3.3 concerning video driver problem – yep, may be it must be updated, but sometimes hardware better works with older version of drivers than with updated one. This can solve the problem too.

3.4 at last – it could be system fault – to solve – use win+r-> sfc.exe /scannow ( this tool will check windows system files, and if any of the are corrupted – will restore them form windows installation (or recovery) disk )

and afterall may be a good reason to check system event viewer, is there any errors or warnings.

that's it for question 3

3.1 first of all we should check – is the screen perfectly blank, ot it's just backlit did not turned on. if there's no backlite and desktop appears on the screen and slightly visible – that may be BIOS problem. So you should try to update BIOS firmware, or if that doesnt work – try to rewrite it with older version of firmware.

3.2 if the screen perfectly blank – there may be problems with bios APM or ACPI settings ( S1/S2/S3 differs on providing with power internal hardware – read about it here http://msdn.microsoft.com/en-us/library/ms79827… ) if there any and also – with some additional h/w driver installed in OS. the solution is to change Power Managment settings in bios ( or just reset them to default ), check power managment settings in windows ( what mode has been used – hybernate or suspend?), check in device managment – does PC ACPI mode supported, and try to disable additional hardware drivers installed in system – i.e. bluetooth dongle, tvtuners etc…

may be this issues could be usefull:
http://support.microsoft.com/kb/242495/en/
http://support.microsoft.com/kb/907477/en/
http://support.microsoft.com/?kbid=923232

this patch fixes some problems too:
http://www.microsoft.com/downloads/details.aspx…

to disable additional hardware use win+r->devmgmt.msc, right click on device, properties, disable

to disable additional software, drivers and services use win+r->msconfig (sorry, my interface isnt in english) in common menu choose “diagnostic startup” or something like this (2nd from the top)

3.3 concerning video driver problem – yep, may be it must be updated, but sometimes hardware better works with older version of drivers than with updated one. This can solve the problem too.

3.4 at last – it could be system fault – to solve – use win+r-> sfc.exe /scannow ( this tool will check windows system files, and if any of the are corrupted – will restore them form windows installation (or recovery) disk )

and afterall may be a good reason to check system event viewer, is there any errors or warnings.

that's it for question 3