At the first power button press, my PC shuts down suddenly 2-3 sec after the UEFI logo Screen. But after the second power button press, it boots up normally and no problems thereafter. It was assembled just 3 weeks ago by me and this issue was not there. This problem just hopped in day before yesterday. There is another similar post on tomshardware and I referred to its solution which is a video on youtube pointing out that its an issue with ATX 12V 2.2 PSUs but was solved in version 2.3 , so why I am facing the issue and why was it not there 3 weeks ago?
Here is that video link : https://m.youtube.com/watch?v=_yiNEZWpLZ0
Here are my system specs (just in case they are needed to solve the issue) :
CPU : Intel Core i3 4150
MOBO : Asus H81 M CS
RAM : 8 GB DDR3 Kingston HyperX Fury (1866MHz)
GPU : Gigabyte Nvidia GTX 750 Ti
HDD : 1 TB Toshiba (7200 RPM)
PSU : Antec BP 450S
Here is that video link : https://m.youtube.com/watch?v=_yiNEZWpLZ0
Here are my system specs (just in case they are needed to solve the issue) :
CPU : Intel Core i3 4150
MOBO : Asus H81 M CS
RAM : 8 GB DDR3 Kingston HyperX Fury (1866MHz)
GPU : Gigabyte Nvidia GTX 750 Ti
HDD : 1 TB Toshiba (7200 RPM)
PSU : Antec BP 450S
. But I have some more info....today I entered UEFI settings while booting first time and waited there for about 15 secs and...my pc didn't turn off !! So that thing only happens when it just starts booting windows during first cold boot after being off for at least 10 minutes. Is there something wrong with the OS?
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