Pc wont shut down

[malik22]

Hi guys




here are my specs first
My Specs
Msi P7N Diamond
8800gtxsli
Q6600@3500 thermalright ultra extreme
Antec 900
Thermaltake TP 850
Liteon DVR
2 HDD


Since yesterday ive had a big problem when I shut down from windows after 5 secs when everything usually shuts down now only my screen shuts down and the rest of my components keep running like if it was on and never shut down unless I powerdown the psu.Things ive tried bios flash didnt help took everything apart reformated but still the same problem persists I tried removing components like one gpu soundcard fans ect but my pc still wont shut down do you guys have any Idea what could be the cause of this?

[Exahertz]

Mine does this occasionally, do you get any errors when it reboots after you pulled the plug? I have no answer to this. only that im OC'ing my CPU and sometimes when i reboot after i pull the plug it says "overclocking failed" and then i have to reset it, but thats not a big deal. I also find that sometimes when I put my comp into standby ill come back in the morning and its back up and running. But I suspect my cat sleeps on my keyboard and she hits the Esc key for me.

[malik22]

No nothing like that im not ocing now since I have the problem when I boot and go to windows everything is normal its when I shutdown only the screen goes off when usally every component shuts off with it they keep running and they dont ever shut off.

[xytrius]

Are you using Vista?

[malik22]

Yes im using vista 64 I reformated once with vista 64 same issue and now I installed server 2008 same issue I have no clue what this is.

[xytrius]

Vista goes into sleep by default if you click the shut down button. Try selecting the shut down option by clicking on the arrow button.

http://z.about.com/d/windows/1/0/G/6/-/-/turnoff.gif

If you can shut down successfully using the shut down option, you can go to control panel and change button settings to shut down instead of sleep.

[Th3MadScientist]

if the above tips don't solve anything, if this started happening just yesterday, I would do a system restore to an earlier time. If that does no good get your favorite Linux distro live-CD, and see if you can shut down in Linux. If you can you know its an OS issue.

[xytrius]

Excellent suggestion to isolate the problem into hardware or software, Th3MadScientist!:)

[malik22]

I cant system restore since I have formated im on server 2008 now and theres no sleep mode that I can see but I havet installed any software restart works.Gonna install xp now see if I can shutdown from that then ill report back.And thx for the suggestions guys.And when I say my screen shuts off I dont mean in sleep mode im mean off.

[Mk]

If you are using an Nforce 780i its A known BIOS issue its ben fixed with the latest BIOS at From EVGA.com Look at your motherboard website for new BIOS

BIOS P06 FOR EVGA 780i (http://www.evga.com/forums/tm.asp?m=425877&mpage=1&key=P06)
* OS compatibility fixes (Vista logo hang during reboot)
* Added Overclocking support for Penryn-1066 CPUs
* ACPI fixes for Wake on Lan

MSI should have this BIOS Updated in there website just look for it

[malik22]

C.Ron7aldo I am using the latest msi bios I installed xp same issue im really stuck I already took everything apart last night now all I have left is my gpu the fan on the thermalright and one hd even formated on the hard drive I usally use to store music ect this most be a hardware issue either the psu or the mobo I have no clue the both seem to be running fine.

[xytrius]

malik22, have to tried disabling ACPI?

[malik22]

Just tried that xytrius and when the pc is suppose to boot the Operating system it reboots instead, i have left it for 5 min and its on a infinite reboot loop what does that mean?

[xytrius]

Just tried that xytrius and when the pc is suppose to boot the Operating system it reboots instead, i have left it for 5 min and its on a infinite reboot loop what does that mean?

It just means that the OS is recognizing the APCI settings; a rather crude and incomprehensive method of finding out, but the only one I know. You will need to enable ACPI for any standard Windows OS install.

Could you enable ACPI and set it to S1?

[malik22]

It is on S1 tried S3 but same thing happens.

[malik22]

Do you guys think this is a psu issue and is there anyway I can check.

[xytrius]

malik22, I think that your board is the problem; specifically I think that you have a faulty CMOS chip. If 3 OS’s have the same shutdown issues, then it cannot be an OS problem, also (based on what you said) your board seems to go into some kind of a sleep state after an OS attempt at shutdown, so all this points to a BIOS problem (considering that this happens with three different OS’s).

It is unlikely to be a PSU problem; the PSU has no electronic say in motherboard powering.

[malik22]

Ok thank you for all your help I just want to make sure I rma the right part if its a board problem isnt it strange Im still able to flash the bios without problem.

[xytrius]

Yes, it is indeed strange. But then, it is not totally unusual for a CMOS to have faulty sectors.

You have had a bit of bad luck, mate; but methinks that once the RMA process is done, you’ll be grinning ear to ear! :)

[malik22]

I just tried the my psu on my bros old pc with x800t and amd 64 and it shutdown without prob so I guess it is the board.Theres nothing i can do right?

[xytrius]

UnUnfortunately, no. I’d rather RMA the board than try to fix it.