When the Power button is Pressed Pc turns on then Off again.

[Pluffy]

Check your CPU. I once had a similar problem and my CPU fan was a little loose.

 

[trog100]

if its a consistent thing.. several goes or tries needed to get the system up and running from a cold start its a heat issue.. the failing component needs a little warm up before it works properly.. the failed attempts provide that initial heat or warm up the iffy component needs to work..

it all seems obvious to me and its not that uncommon.. the only problem is figuring out which part is the problem.. my guess is the motherboard.. but it could be the cpu or many other things.. in the end whatever component it is that is causing the problem will give up the ghost completely and the system wont boot at all..

trog

 

[Iceni]

if its a consistent thing.. several goes or tries needed to get the system up and running from a cold start its a heat issue.. the failing component needs a little warm up before it works properly.. the failed attempts provide that initial heat or warm up the iffy component needs to work..

If that's the case you might want to check the valves as well........ Hang on aren't PC's solid state electronics, Using transistors.

Sorry for the minor derailment, Lack of heat is not the problem, Solid state electronics work better when cold, Up to the point they fail to work and you'd need to be living in the Artic for that to happen.

Mashing a button and waiting for the 1 good boot, isn't adding heat, it's playing the laws of probability to allow a good boot past whatever the problem is.

 

[Virus-j]

Uhm, this is two different things.
In your title and opening post you state that it starts and shuts down... now in this post quoted you state it is doing the same thing again and it gets to the windows logo and completely cuts off.

Wanted to clarify on that, there is no time on this for when it cuts out it seems to be random. Yesterday got to the windows Logo started the pc today and it didn't even reach the bios screen just cut out straight away. Most the time it gets to the bios and cuts out.

Just bought the power switch thank you for that, i will give that ago see if that resolves the problem. Hopefully it will. Later on i will do a memory test and stress test and check temperatures.
Cpu fan is definitely screwed on tight, To be honest i might even just reinstall windows too as that has been playing up latelty wondering if it might be related ? Keeps on freezing now and then and if im on a game/Program it seems to just minimize what im doing and takes me to desktop.

 

[Iceni]

Keeps on freezing now and then and if im on a game/Program

Random fails to power on and random freezing go hand in hand, It can't be the power switch in that case, As the PC would soft shut-down rather than crash or hang a program.
It also can't be a failing fan as that wouldn't hang programs either it would hard restart, and possibly throw the PSU into safe mode.

It also can't be windows if it is happening in the POST.

I would look at the PSU and RAM.

Make sure you check the ram voltages, You might have 1.65v sticks running at 1.5v. Or they might be running at a timing that does not suit the 1055t.
You also have an over-clock running so remove that and set everything back to base clocks as it might be your CPU is suffering from some degradation due to a sustained over-clock. It happens over time and the 1055t is an old chip now they stopped making them in 2012 so it's at least 3 years old probably older.

You also need to work out if you have 2 problems or 1 combined problem. So firstly swap the power switch to the reset switch, (I posted how to do this earlier). Then reset the bios and start from scratch. And reinstalling windows is never a bad thing when problems start appearing, as it will rule out most viruses and conflicting programs.

Memory wise do you have any old sticks you can test in the machine. Capacity and speed doesn't matter. Just stick something else in and see if the problem goes away. I've had bad ram before that would randomly crash a pc. It wouldn't show a fault in memtest even on the full extended tests, but under-load it would fail. The problems with that machine just vanished when I tested the other ram in the machine, And a few years on the machine is still running without fault.

 

[thebluebumblebee]

The power switch on today's computers is not like a light switch. Once the system is on, it has NOTHING to do with the system's operation. IIRC, the functions of the power switch (as well as the reset switch) are turned into software signals by the motherboard - similar to using the Start icon on the desktop. Quit looking at the power switch.
The problems you are having with your OS are caused by hardware problems, not the other way around.
You are most likely having problems with RAM, motherboard, PSU or maybe even a HDD. There's also the possibility that some peripheral is causing the problem. Anything different USB wise?

 

[trog100]

If that's the case you might want to check the valves as well........ Hang on aren't PC's solid state electronics, Using transistors.

Sorry for the minor derailment, Lack of heat is not the problem, Solid state electronics work better when cold, Up to the point they fail to work and you'd need to be living in the Artic for that to happen.

Mashing a button and waiting for the 1 good boot, isn't adding heat, it's playing the laws of probability to allow a good boot past whatever the problem is.

you are wrong in thinking that defective solid state components dont sometimes need a little heat to work properly.. things expand and things contract with heat even solid state components.. a PC is loaded with things that can be affecting in such a way..

your theory might be correct but you reality aint.. so stop taking the piss.. he he

trog

 

[Virus-j]

I have purchased the Power Switch anyway just to try it... for £2 it's worth a try. Im more thinking it is a hardware problem. Im doing a Stress test now so far it's been going on for about a 2 hours now. My Overclock has completly gone and haven't had the overclock that is in my System Specs on for about a year now (need to change that) I will check the Hard drives and do a test on them, My SSD is pretty new about 2 months old. will do a memory test ina minute. I assumed that now i put the PSU from my 2nd rig into this pc and that it's still doing this the PSU not the problem now, Or still possible ? Another problem, Pc been left on all day while i have been out. Turned it off so i could do into bios and check that before i did stress test. Cut out Straight away when i tried to turn pc back on, usually it only does this if the pc has been left off for a good couple of hours.

I checked out the Bios Earlier too, Ram is at 1600Mhz, 1.65v Cant seem to find the timmings for my memory will try find it on google, At the moment they are 9-9-9-24

Anything different USB wise?

After reading this, I decided to remove my Mouse and Ipod touch and Phone from the PC, The Mouse has been taken out now as i had some problems with that a while ago before this started and recently i plugged it back in the pc... When you turned on the PC it never seemed to work or turn on i guess. So i plugged it into my Monitor which luckily had usb ports and it was fine after that. Since then that monitor died so it went back into the computer, fine it's not doing it now but thought id better remove that for time being.

Thank for everyones help with this, I cant seem to figure this out : )

 

[OneMoar]

psu +12v is a touch on the low-side but within spec .... still I would try another power supply sometimes when the caps get old they get a bit flanky
edit CX series psu yea..... id bet that'd be the culprit

 

[Virus-j]

psu +12v is a touch on the low-side but within spec .... still I would try another power supply sometimes when the caps get old they get a bit flanky
edit CX series psu yea..... id bet that'd be the culprit

Lol, Everyone seems to hate the CX from what i was reading on other forums about it, wish i never bought it after what iv seen.
Even though i tried another PSU though surely it still cant be the CX ? The PSU i used from my 2nd Rig is like a said a cheapy and a lot older than my CX but it's running a 4870 for years and i dont have this problem on the other Rig.

 

[OneMoar]

Lol, Everyone seems to hate the CX from what i was reading on other forums about it, wish i never bought it after what iv seen.
Even though i tried another PSU though surely it still cant be the CX ? The PSU i used from my 2nd Rig is like a said a cheapy and a lot older than my CX but it's running a 4870 for years and i dont have this problem on the other Rig.

stability problems at load are usually power related

 

[Virus-j]

Stability problems i can understand if my PSU is bad, but the Powering on Issue when i press the button and it cuts out not sure how that could be related in the sense that i tried another PSU that is working in another rig and it's doing it on that ?

 

[xvi]

Stability problems i can understand if my PSU is bad, but the Powering on Issue when i press the button and it cuts out not sure how that could be related in the sense that i tried another PSU that is working in another rig and it's doing it on that ?

Could be power delivery on the motherboard. Maybe bad heatsink contact on the VRMs?

Um, maybe try stock clocks and lowering CPU voltage? Try removing all but one stick of memory? I think all you can do is remove parts until it's fixed. If you reach bare minimum (motherboard, CPU, memory) and it still doesn't want to go, it's one of those three things.

 

[PCGamerDR]

MY CX750m looking good after a year and a half xD...

 

[Virus-j]

Well, I have now done memory Tests, Hard drive Test All are fine no errors. Removed the Hard drives, Re seated the CPU fan and still no luck. Could be motherboard or PSU then by looks of it. Hopefully not the Motherboard as that would be costly. If it is the motherboard i will probably just leave that as it is and live with it until or if it just decided to not turn on.

Tempted to replace the PSU see if that fixes it. Been looking at these, what would you suggest out of those two ? or any other you could recommend in around that price range.
http://www.scan.co.uk/products/650w...us-bronze-sli-crossfire-eps-12v-quiet-fan-atx

http://www.ebuyer.com/713453-seasonic-s12-ii-620w-80-bronze-certified-psu-jap-caps-12cm-ss-620gb

 

[trog100]

"Hopefully not the Motherboard as that would be costly. If it is the motherboard i will probably just leave that as it is and live with it until or if it just decided to not turn on."

###

its looking like your motherboard.. which was my guess in the first place..

you have already tried another psu and it still does it.. folks tend to be a bit weird with diagnostic logic.. they refuse to believe the obvious simply because its the most expensive part.. this kind of logic costs more money in the end..

you have two basic choices.. buy a new psu even though it dosnt really look to be the culprit or just leave it as it is until like i said earlier it refuses to boot at all..

my old PC often used to do it.. i left mine in sleep mode to avoid it.. i did a full reboot once every three or four days just to clear the memory..

trog

 

[thebluebumblebee]

Well, I have now done memory Tests, Hard drive Test All are fine no errors. Removed the Hard drives, Re seated the CPU fan and still no luck. Could be motherboard or PSU then by looks of it. Hopefully not the Motherboard as that would be costly. If it is the motherboard i will probably just leave that as it is and live with it until or if it just decided to not turn on.

Tempted to replace the PSU see if that fixes it. Been looking at these, what would you suggest out of those two ? or any other you could recommend in around that price range.
http://www.scan.co.uk/products/650w...us-bronze-sli-crossfire-eps-12v-quiet-fan-atx

http://www.ebuyer.com/713453-seasonic-s12-ii-620w-80-bronze-certified-psu-jap-caps-12cm-ss-620gb

Both PSU's are made by Seasonic.
That's a Saboertooth motherboard and has a 5 year warranty (over here any way). You may be able to RMA it.
BTW, back to USB, make sure none of your case USB ports have been damaged.

 

[Virus-j]

Just found my Reciept for my Sabertooth Bought April 2012 and YES! has 5 Year warranty. I will RMA it in January as dont fancy sending it before Xmas. Kinda Dissapointed in the Sabertooth seeing as in my 2nd rig i have a £40 5 year old motherboard but luck of the draw i guess. For the time being im going suggest what you said trog just leave it in sleep mode and not turn it off, Need the PC for work atm and id hate for it to just not turn on over Xmas.
I just checked the USB ports on the back and the Front Pannel, They look ok to me, no issues either they are all working.

I've been searching around about the Powersupplies, Seems that Seasonics are pretty good from what i have seen. Im still tempted to Replace PSU i shall admit, Mostly becuase i was planning to upgrade the PC in the new year with a FX8350 and Possibly a 960GTX also since i will RMA the Sabertooth i dont want any more problems especialy seeing as the CX is Junk.Would it be a good idea to Replace ? Also I saw on Reviews that the XFX was also made by seasonic, Any difference though between the 2 ? Other than wattage ?