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Ever since I swapped my motherboard for a different model (old mobo was defective) and ran a repair installation of XP, the monitor will not switch off after [X] number of minutes when I set it so in the Windows Power Settings.
I've been through and fiddled with all of the power settings in the BIOS and nothing has worked.
I've found very few answers through web searching, reading manuals, etc...none of which have worked.
Any suggestions?
" ...the monitor will not switch off after [X] number of minutes when I set it so in the Windows Power Settings."
Make sure it's set to something other than "Always On" there.
Install all the drivers for your new mboard - sometimes Windows doesn't detect everything properly.
Install the drivers for your video if you have'nt already done so - if it was detected by Windows automatically, sometimes it won't work as well as it does with video manufacturer's drivers.
Install the drivers for your monitor if you have'nt already done so .If that doesn't help, Windows has never been 100% with support for this kind of thing, and ACPI - some mboards just do not work properly with this setting. You could try setting it to Always On in Power, and setting the time till it turns off in the bios.
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Make sure it's set to something other than "Always On" there.
I've customized the profile to my likings: monitor off in 30 minutes, turn off hard disks never, and standby never.
Install all the drivers for your new mboard - sometimes Windows doesn't detect everything properly.I already did that.
Install the drivers for your video if you have'nt already done so - if it was detected by Windows automatically, sometimes it won't work as well as it does with video manufacturer's drivers.I've done that as well.
Install the drivers for your monitor if you have'nt already done soI haven't, but it always worked just fine on my previous hardware without installing the monitor driver. I'll try it anyway.
If that doesn't help, Windows has never been 100% with support for this kind of thing, and ACPI - some mboards just do not work properly with this setting. You could try setting it to Always On in Power, and setting the time till it turns off in the bios.I don't have a setting in the BIOS for video-off after X minutes.
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""Make sure it's set to something other than "Always On" there.""
"I've customized the profile to my likings: monitor off in 30 minutes, turn off hard disks never, and standby never."
I'm referring to the Power Schemes line selection above those settings - if that is set to Always On, your other settings are ignored!
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I think you're mistaken there. Always On is simply a name of a power scheme and has no bearing on overriding any settings.
Besides, it is *not* set to Always On. I have customized the Home/Office Desk profile.
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Like I said "...Windows has never been 100% with support for this kind of thing, and ACPI - some mboards just do not work properly with this setting. "
There is only one thing more you can check, and that is the +5Vsb rating of your power supply - if the current (amperage) rating is not enough for your mboard, the ACPI on the mboard cannot work properly - in many mboard manuals the minimum rating of that for the mboard is stated somewhere.
The mboard on the computer I am typing this post on is one of them - it never comes out of Standby - I know of several mboards like that. Some others will "wake up", such as when a conventional modem is installed and a call comes in on the same telephone line, when all settings in the bios, or even ACPI itself, has been turned off in the bios. This mboard has both problems. I can get around that only by disabling both LoadPowerProfile lines in MSConfig - Startup in Win 98SE - there is no cure in XP for this mboard, if it has these same problems in XP. In my case, despite the LoadPowerProfile lines being disabled, the settings in Control Panel - Power work fine.
There are hundreds of posts on this site about similar problems.
You could load a screen saver in Display properties for the monitor, even just a blank screen one.
Since you have just re-loaded the operating system, you could re-install it again and try not loading ACPI support in XP at all, and the Power settings may then work.
See "Fresh Install with no ACPI"
here:
http://www.logan.eclipse.co.uk/xp%20hints%20&%20tips.htm
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