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computer wont turn off,help me please.

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June 11, 2013 9:43:29 PM

when i try to turn my desktop of from the windows menu it shuts down but immediately turns back on, kind of like a restart. so i thought maybe its my windows software but when i hold down my power button it turns off and then immediately turns back on. my friends tell it could be loose cords, my computer maker "cyber power" tells me i need a new power supply. can someone please help this is my baby i'm talking about ha-ha.</3

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June 11, 2013 9:55:19 PM

Sounds like Windows - if you make an Ubuntu liveUSB, does it do it?

Doubt it's the PSU, but if it does it's their problem if it's still in warranty.
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June 11, 2013 10:06:10 PM

If the power button was shorted, then it would act like you held down the button - it would switch off after 5 seconds.
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June 11, 2013 10:11:29 PM

im sorry i love my computer but i am just newbie this is my first "gaming computer" but after seeing posts with people specs of this community i feel like my computer is crap, so i do not know how to use a Ubuntu liveUSB. i googled it and it seems easy to install but idk how to use it and yes im doing a complete shut down and i have not check the power button and i will check the cords tomorrow morning, thank you guys! please check this tomorrow to see if im still struggling and if you could explain the Ubuntu liveUSB i will try my best to see if that helps.
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June 11, 2013 10:30:26 PM

But then why would it happen when he's using the start button to shut down?

Got to be software or MB.
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June 12, 2013 7:00:22 AM

If you hold the power button in for four saeconds, the PC wilol shut down but if you hold it in any longer, the PC will reboot.

The PSU is likely to be under powered and not providing the adquate power for the system and its resources and hardware. I'd hazard a guess that it's not more than 400 watts, maybe about 250 to 305 watts. You need about 650 watts minimum for most PC's past year 2009.

The only other thing you can do to safeguard the PC orther than replacing the PSU is to disconnect any mollex adapters that might be doubled with the hdd or video card. Ensure the hdd has its onwn power from the PSU, the video card has its own power line from the psu. Ensure that there are no internal fans using molex adapters, they should only be connected to the motherboard.
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June 12, 2013 9:27:23 AM

okay if this will help narrow down the problem, when my powerstrip is on and i havent touched the power button of my computer yet it doesnt turn on but once its on it will not go off without turning back on, also i believe my power supply is high enough i have a 700watt.
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June 12, 2013 10:03:59 AM

i tried unpluging a fan i thought was connected to a molex adapter but that didnt help i cant really follow the wires. so are you guys sure i shouldnt just replace the psu?
looks like ill try replacing the motherboards battery next, or is there a way to test to see if its the motherboard?
my motherboard is using a lithium CR2032 is this good enough? Could that be the problem? my computers motherboard battery isnt messing with the bios so i dont know why it would be that battery.
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June 12, 2013 7:32:21 PM

Quote:
You need about 650 watts minimum for most PC's past year 2009.


Sorry, that's just plain wrong. Stuff has been getting continually less power-consuming over the last few years. You could run an Ivy i3 with iGPU on maybe 100W, though padding/upgrade room is good.

CR2032 is a standard size of battery - you could try getting another one, probably about $1-4 (don't know what US prices are like).

Not all PSUs are created equal - what brand/model.
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June 12, 2013 10:50:37 PM

muby said:
okay if this will help narrow down the problem, when my powerstrip is on and i havent touched the power button of my computer yet it doesnt turn on but once its on it will not go off without turning back on, also i believe my power supply is high enough i have a 700watt.


Well, hard to actually understand what you said but it seems like the power bar (board) is actually in fault of your PC. Try a different power board or remove some of the plugs from that board so that only the PC and monitor (if that is what is on it ) are the only plugs.

700 watts is good enough for a PSU but you'd need to check that the connectors are all connected.
Could you provide a snapshot of the PC gizzards?
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June 13, 2013 1:24:30 AM

No, I read it as he needs to switch it on manually the first time from hard off, but after that it keeps switching back on.

Did you manage to boot into Ubuntu?
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June 13, 2013 10:43:48 PM

i switch the CMOS battery and it didn't change anything, i had my dad come and try to look inside and move the cords around and unplug stuff.(not really sure what he did) but i decided i would just take it into best buy and see if they can figure it out cause its just frustrating me. ill let you know if there is a solution found for anyone that is going to have the same problem as me in the future.
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June 13, 2013 11:26:50 PM

Don't really think Best Buy will help more than Toms. Hehe. They don't really know their stuff IMO.
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June 14, 2013 12:46:19 AM

I still think it's the power board, if you need to power on the power board before you power on the PC then there is a shortfall of power from somewhere, perhaps the room outlet also has secondary power bar (board) to which the draw of power isd less then what it should be.

Try the power bar (board) with only the PC and monitor connected in a wall outlet in another room.

Edit - A powerboard does not have capacitors, so you shouldn't need to "power it up" prior to powering on the PC, it should just be able to have adequate power for each of the plugs to which you connect the Pc and/or monitor/tv, all of the time (when it is on).

The PSU collects its power from the plug connected on the power board not just its alloted wattage but an additional allotment that might be drawing more than what the powerboard is allowing for some reason which could be too many other appliances on the same board or the circuit itself is coupled with too many other rooms that have high powered appliances.

Ask your dad what other rooms that your room is also connected then go into those other rooms and see what appliance is also being used at the same time you are on the PC.
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June 14, 2013 1:23:38 AM

Nope, you don't understand electricity.
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June 14, 2013 2:16:25 AM

I read something recently about an option in the BIOS where the UEFI was causing the issue, disabling the UEFI in favour of the basic bios utlity disabled the power on problem. There might otherwise be anoption in the UEFI to diable self=power on or wake on lan... perhaps someone somewhere could add something more constructive...
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June 14, 2013 2:24:43 AM

If the circuit is overloaded, the fuse/circuit breaker will trip/blow. Otherwise it will work fine.
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June 14, 2013 6:08:06 AM

edited (wrong answer for the wrong Question)

We don't actually know all your PC specs, perhpas you could enlighten us with make/model?
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