[SOLVED] Pc turned on and off, but sometimes runs ok

[emmanuelrodriguez151]

Hello,
my PC got frozen and I had to reset, after this it randomly turned on and 1 sec after, off, sometimes it turned on and while trying start windows gets frozen and few seconds after gets off, resets, tries to start and happens the same many times
I cleaned it and reseted BIOS, and the problem continued but I left it since yesterday and it has about 30 mins working alright, even I reset Windows and again charged as always, I didn't do anything since the last time it gave problems. But I don't think problems went away
My specs are
Core i3 2100
Gygabite h61m S2
4gb DDR3 1333
1TB Samsung HDD
EDGE R500 500W
Any suggestions? Is it MB, CPU?
Thank you so much

 

[rgd1101]

cpu temps?

 

[emmanuelrodriguez151]

Are ok, about 40° while using desktop, surfing, etc, and the last time it didn't work I left 1 hour without using, I think it's enough to refrigerate, that time after 2 seconds PC turned off

 

[Nirmith Akash Anawarathne]

How old is that PSU? may be this is where you should start...

 

[emmanuelrodriguez151]

I noticed too that Pc crashes some seconds after ending a demanding process, when I close a game or finish a stress test. Even if I don't use it and I left desktop after starting it get frozen, but when I demand a lot to my components PC works good.
That is not always but most of the times something similar happens, hope this is useful

 

[emmanuelrodriguez151]

My PC was not new when I bought it, but PSU never was opened, it had warranty stickers, I opened to see if it was clean and yes, it was, I don't think it's more than 1 year old

 

[emmanuelrodriguez151]

MB may not assimilate a change of power and because this it stops?

 

[Nirmith Akash Anawarathne]

How about leave it on BIOS for couple of minutes or may be more? to see whether it get freeze there too.
I'm not sure but this kind of reasons mainly happens because of motherboard failures.

 

[emmanuelrodriguez151]

I could be even 2 or 3 hours playing in Windows and nothing happened, and some minutes and crashed, but now it's not too frequently.

 

[salerhino]

Change ram entirely and see if problem persists.
thats my 2cents about this