Power Still Supplied To Motherboard After Windows 7 Shuts Down
May 18, 2012
Over the last weekend I installed a new hard drive into my system, and on that drive installed Windows 7 Ultimate x64. Over the past week I have been tweaking my settings, resolving issues, and installing programs.So far everything is working fine, except for the fact that when I shut down, there is still some power being supplied to my motherboard (NumLock indicator does not turn off, and if I open the case the power LED on the motherboard is illuminated). This does not happen when I shut down from Windows XP (I have a dual-boot configuration; XP is on my smaller hard drive).
1. I have gone into my BIOS and disabled all the relevant power management settings (as far as what devices can wake the system, etc.).
2. I have gone through my Windows 7 power management settings and disabled/changed all settings that seemed relevant.
3. I have gone through my device manager and made sure that, for all devices that have a power management tab in their properties, the check box that says something like "Allow the computer to turn off this device when shutting down" (or something like that) is selected. Yes, even for the firewire port. There are some items for which the check box is greyed out and cannot be selected (such as the keyboard).
Here are the only things that I think may have an impact that I have NOT done:
1. Installed the chipset drivers for my motherboard in Windows 7. I have not done this because: a) other than powering down, everything else works fine; and b) I am not sure which driver package I should install (due to the mixed northbridge and southbridge chipsets on my motherboard).
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Mar 6, 2012
I have 2 computers here. One is a E-Machines, and the other is a custom built. Both units as soon as you power them on, they go thru the boot up process, but anywhere from 2 to 10 seconds later, the unit turns off. I've tried swapping the ram and the power supply. I have disconnected the keyboard, monitor, mouse and speakers with no change. Both of them developed this problem over night. They do not stay booted up long enough to get into the setup or to even try booting from a DVD.
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Jul 13, 2010
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Sep 22, 2012
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Dec 21, 2011
The system is built around an Intel Dual Core processor, Asus P5K motherboard running 4gb DDR 2 RAM and an ATI Radeon graphics card. I installed a new copy of Windows 7 Ultimate on a recently formatted hard drive and added and an extra PCI 4 port USB card. My issue is that all of the 6 motherboard USB ports are powered (I can charge my phone from each one) but do not recognise any device plugged into them. Have tried keyboard, mouse, usb drive, camera and so on. Windows doesn't blink when anything is plugged in. When I plug a device into one of the 4 ports on my PCI USB card it installs new device and is working perfectly with absolutely no issues. I have done the following:
- Removed power cable and small lithium MBoard battery overnight,
- Flashed the bios several times upto and including the lastest version,
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- Downloaded and installed the latest Chipset drivers,
- Checked that Device Manager correctly sees all the USB ports and drivers. Everything is displayed with no errors or flags.
- Deleted and reinstalled all USB components.
- Windows is fully updated including the language packs.
With my 4 port USB card working perfectly am I to assume I have a biffed motherboard? I just cant understand that as they have power and are recognised in Device manager. And were working perfectly with Windows XP Pro installed previously.
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May 10, 2011
so i am not intirerly sure this is the correct place to post it.Secondly, i think this is a problem that i have created myself and now i am unable to correct it.The jist of it is this. Whenever i try to active the webcam (Function + F10) a pop-up shows saying that hardware connected to a USB port is not recognized. This must be cause by the cam (which us buillt-in) is connected to the USB port on the motherboard.When i go to device manager, i can see that there is a unknown device connected, whenever the webcam is powered on.Btw it worked fine when i did the initial installation of the computer.What i have tried to do to resolve this is the following:
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- Removed all the USB drivers and have tried reinstallling
I deleted som folders from my D: drive, (which is not the partition that has my windows directory installed) and there i might have deleted som crutial files for the webcam software to work.I have no idea on how to go on from here. This is a computer i have spend quite a long time getting up-2-date with all the programs i use for school and the exams are coming up. I would really like not having to do a clean install right now.
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915 motherboard intel support chipset motherboard sound, vga, usb drivers download
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a) Off.
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c) Moderate power savings.
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Apr 5, 2011
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Jun 13, 2011
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Sep 30, 2011
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Nov 23, 2012
AMD FX(tm)-4100 Quad-Core Processor 3.6 GHz CPUKingston HyperX 8GB (2 x 4GB) RAMGeForce GTX 560 Ti GPUm5a78l-m lx plus MOBO600Watt PS So the problem began a few months ago. it was a random shut off here and there. i was given 2 new parts after the problem started. it was the power supply (old one was 455W) and a new GPU (old one was gforce 9800). to think of it the problem might have started when i got a new motherboard cpu and ram. so im pretty sure one of those 3 is the problem. bare in mind that it would shut off aspecialy during game play but still only doing it once, twice a day. Now it shuts off while watching a movie or even chatting on facebook and when i try to start it, it just shuts off on me during the windows 7 logo loading again. it gives me 2 options to boot from: normal, and repair mode. if i go normal it just shuts down. if i repair it not always but sometimes fixes the problem for an hour or 2. but sometimes it just shuts off again.I play this game of cat and mouse for about 4-5 tries and get it to load. it's like an old car. forgot to mention i also went from windows vista 32bit to windows 7 64bit and problem is still here my computer uses 4GB ram for hardware reserve which i don't mind. i tried to reset the bios from a backup and it still keeps screwing with me.
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