I am running XP

E6600
2Gb Corsair 800mhz
XFX 8600 GTS Extreme
Mobo: Gigabyte P35 DS3R

When I shut down the fans, PSU, CPU Fan, Fan LEDs are still running, so the power just won't cut off.
Before this, I had the "windows is shutting down" mesasge freeze as well on shutdown but it got away after I installed XFX video card drivers.

Another thing that I am afraid is that this might actualy be hardware? I mean I went to q-flash, and I used the F10 for shutdown in bios. When I do that, it shuts itself down but in 1-2 seconds it starts all up by itself.

Even tryed this: immidiately after it shuts down after I press F10 I shut down the PSU from the back button (from I to O), and amaizingly it STARTS UP for a very brief second then it shuts down.

Is this PSU problem?

so did this start happening when it froze or has it been going on for a long time? in your BIOS do you have any autostart options on?

if you're getting a screen like "You can now shut off your computer" or something like that, then just push the power button, and it should all turn of, no problem. many older computers were like this, such as Compaqs, and my old server is exactly the same.

I had the windows shut down image freeze all the time since I assembled this rig and I had both windows XP SP1, SP2 and SP2 x64.
But I no longer have the freeze after I installed the video card drivers.

However now, windows shuts down but the comuputer will not power off.

In bios there is no autostart option.

my dads comp did this when i installed xp (no SP) on it. then i installed SP2 and it didnt give that message anymore..




very strange. try updating every driver that you can, expecially your mobo drivers.

I rekon I only installed the chipset which came with the CD, so I will try update it with the newer one in the gigabyte site.

And I don't get such a message. Windows effectevely shuts down, monitor turns off but the computer still runs power. Ethernet onboard LED is off as well, but fan LED, and fans/PSU fan are still running. No idea what else might still be active.

I found on internet about "Right click my computer - Properties- Hardware- Device Manager, Click View at the top and click show hidden devices, Double click NT Amp/Legacy support it should have a red cross on it , Enable it and your pc should now shut down properly"
http://www.softwaretipsandtricks.com/forum...t-turn-off.html

But I do not have anything such as NT AMP.

Update: I have tried hibernate. It does the same thing it does when you shut it down in bios by pressing F10 when you are in Q-Flash. It starts hibernating, it shuts down, (Fans, LED's, etc) but in 1-2 seconds it starts up by itself again

just wondering, what happens when you press the power button to start it up again?
also try updating your BIOS. it sounds like windows isnt communicating with the BIOS correctly.
do the fans ever turn off, after an hr or anything?

When I press the power button it starts up.

SP2 removed a lot, i dunno if it'll show the shutdown messege.

it has to do with ACPI unless i'm mistaken, you can't disable it. to turn off the computer, you need to push the power button...nothing you can do about it.

But changing the power supply will fix it? Or this has something to do with the mobo? Why is it automaticaly start up after you close it with hibernation, or F10 in bios

i had the same problem with vista doing that... but it turned up being the crappy nvidia graphic drivers... on about 11 different systems after the first install and then it was raid drivers on 3 of the the intel boards i put in... finally got got some updated drivers a month later and was able to sell the rigs but i know your dealing with a different os so i wish you luck.... cause anything could cause that problem , mb , memory , psu... i even had a dvd burn trying to hang at shutdown and cause the weird problem


good luck

Check under device manager, under the "Computer" tree to see what HAL is installed. It should say something like "ACPI Multiprocessor PC".

Check to see in BIOS if there are any auto-start or power resume modes. For example, I can set my computers to return to their previous power state in the event of a power loss. If the power goes out while I'm using the computer, it will automatically start up again when the power returns. Try looking for that option in BIOS.

Alternatively, for your sake and everyone else's, try clearing the BIOS completely.

if it wont stay off after you turn it off, make sure Wake On LAN is disabled.

Hi,

I don't have a Wake on LAN in BIOS.

Also I don't have any autostart or resume modes.

Actualy all I have in BIOS is

ACPI Suspend type which I can choose between S3(STR) and S1(POS), I tried both, no difference.
USB device wake-up, which I dissembled,
PME Event Wake up which I dissembled
Power on by Ring which I dissembled
Resume by alarm which I dissembled
HPET support which is dissembled
Power on by mouse/keyboard which is dissembled.

In windows under Computer tree, only thing there is ACPI Multiprocessor PC.

Make sure that you install the latest intel chipset drivers. APM and ACPI functions are controlled through system drivers which are installed as part of the chipset drivers. Make sure that APM or ACPI is enabled in the BIOS as well as making sure that it's enabled in the Power Management section of the Windows control panel.

not sure what to say about the staying on, however when you use the PSU I/O switch, its technically safe, however when you turn it back on, and lights blick etc, its because theres a 5v line that triggers the computer to turn on, the computer is telling you that the 5v is good.

if you push the power button once [not hold it down] after turning off, what happens?

Disconnect every extra device (CD Drives, floppy, fans except CPU fan, etc). Remove any extra cards except video. Use a wired mouse and different keyboard. Now what happens? If it works OK, add one thing back at a time and test until you find the culprit.

I have exactly the same problem with my fans.
I need to turn off the switch at the PSU.

E6600 CPU
P35 NEO MSI MOTHERBOARD
HIPE PSU

nothing like that would cause the system to stay on, i'm almost willing to bed its an ACPI issue [however i'm no gambler].

my old server does it, computers at my school do it, i'm sure its no different. you just need to push the power button once.

however, that leaves me to wonder what a different power button would do for the situation.

I would not bother to post this advice unless I had already solved this exact problem using this exact procedure. It may not work for him, but it also might work for him.

I have installed the chipsets from gigabyte website over the chipset that came with the mobo CD, no difference.

What exactly can I do with the tree under computers at ACPI multiprocessor PC?

And there is no other troubleshot for this ACPI? some sort of manual configuration?

If the computer is turned off (power off) it starts again. if it's turned off (but power still on) it does nothing. Keeping pressing the reset tho I remember it booted again.

Your computer may be crashing when you are shutting it down. Right-click on My Computer, then choose Properties. From there, go to the Advanced tab. Click on the Settings button in the Startup and Recovery section. In the section marked System failure, remove the check next to Automatically restart. This will allow you to see if whether or not this is the case.

Yes, it was already unchecked.

exactly what power supply are you using?

i read something yesterday about some power supplies leaving fans on after shutdown to cool off the computerfaster and more efficiently. that could be it.

This is telling me that the system is still "on", but not doing anything. Try clearing your CMOS. I'm wondering if there's something strange in your BIOS settings that's preventing the system from turning off properly.

@bonnestone - If the PSU keeps it's own fan running, then that's one thing, but the fans that are connected to molex connectors or the motherboard headers couldn't have power unless the rest of the system is running.

Make sure your BIOS is up to date with the latest revision (F4 according to the Gigabyte website).

Make sure Windows has the latest updates installed, including SP2 and all the current updates up to now.

Make sure you have all the drivers installed for all your hardware (Check the hardware manager in system properties and make sure that there are no yellow exclamation points).

Make sure none of your components are overheating (especially the CPU).

Try seeing if you still have this issue using the on-board video instead of the XFX card you have.

And like asked above, what power supply are you using? Brand? Model? New or old?

I would concentrate on two things:

1. Fans wired inproperly - i.e. in another connector not meant for them - either bypassing power management features and getting voltage all the time - or to some temp monitoring sensor that has wrong readings.

2. BIOS settings - try harder. I doubt this could be caused by anything from the OS.

GL

a] Improperly wired fans would not prevent the power supply from powering down.

b] The operating system CAN be responsible. If the operating system is still active after it's supposed to be shutdown and has not properly issued the ACPI/APM commands to turn off the power supply, the power supply will remain active.

I have updated my bios, I have now F4

Windows has the latest updates.

No excalmation marks in windows under hardware manager

I can only have temperature from CPU and it's below 40c so its the system at 44c. But even after I start it after 8 hours it's the same problems.

I don't know if I have a onboard video, nor I think I do.

I have a nMediaPC: http://www.ncix.com/products/index.php?sku...NMedia%20System, brand new with the system.


Also after now I have changed my CPU, E6750, I updated the BIOS to F4 and loaded default I tested it by going again to Q-Flash and F10 to shut down. As usual it started back on by itself in about 2 seconds (so it shut down completely but started again)

Edit: Do you think it can have anything to do with the front pannel connectors? Such as power switch, reset switch, by not setting them correctly on the correct possitive and negative? All my case wires have their colors for each function + a white whire for each, which I guessed it's the negative so I connected with the white wire on the negative pin. This is correct?

There is no polarity for switches. A switch is a switch and simply acts to interupt or continue a loop.

The polarity is only important for LEDs, which in their case, the colored wire is positive and the white wire negative.

"Computer won't power off when I shut XP down.

The most common reason for this problem is that ACPI (the Advanced Configuration and Power
Interface) isn't enabled. To enable it:
Click Start | Control Panel, select Performance and Maintenance.
Click the Power Options tab.
Select APM - Enable Advanced Power Management Support.
Click OK."


I don't have any APM in the Power Options

Chances are you won't see that on newer PCs. That's mostly the case in older PCs where APM/ACPI support wasn't always automatic.

Well I'm pretty much cluless then what else I can do. I have send a message, maybe I can somehow try a new PSU.
I don't know, but I had this problem since day 1, so I belive it has to be something hardware related.

You've also had your PSU since day one.

Indeed, so unless there is any other idea all I can see I can do is to try somehow another PSU. If it's still the same, then what? motherboard?

yep, those two would be my best guess (psu, then motherboard).

You don't happen to have an X-Fi soundcard in there, do you? I've had all sorts of shoutdown/sleep issues with my Intel DP35DP and X-Fi XtremeGamer. Using the onboard audio seems to have fixed them. Unfortunately, the onboard audio is crap.

Nope I have onboard audio.

This shall *never* occur with PCs of the 2000s!

Thus, looks more like a faulty motherboard or power supply.

Faulty motherboard.

Everything was such ironic tho.

I wanted to go with my power supply to exchange, but my motherboard onboard ethernet broke, so now I had to return motherboard too.

There they told me that they can only change the motherboard since the power supply only had 30 day warranty with the retailer, and I had to contact the manufacturer.

Yet, when I installed the new motherboard, with the same power supply finally the nightmare is gone and the computer shuts off and power down properly.

So, the 30$ 500W power supply was not at fault, but the motherboard.

Now I just hope the new motherboard and all other components will be as reliable as my other 5 1/2 year old computer where nothing ever faild, even when some capacitors from the mobo and PSU blew because the PSU fan broke.

Another chapter ends with a happy ending.

And of course thank you everybody who took the time to read the thread and post the suggestions.

great, glad you got it working!