Experiencing the weirds issue - PC won't wake up after sleep. Replaced PC - same issue!

[idh1oi12jkl31jk2bgve3jk12b]

 

tl:dr: PC won't wake up from sleep. 

 

Anyone might have a good advice on this - would be appreciated. 

 

I built a used but new PC. 

After a few days of usage, it would tend not to go out of sleep mode. I tried everything I can think of:

Long pressing the power button. Reset button. Shut down PSU. Nothing worked. 

 

The only thing that would make the PC wake up again would be - and this is only sometimes - to literally take it out of the power plug, wait a bit, and then try again. 

This would work only sometimes. 

 

I thought to myself, ok, I am a bit experienced (although rusty) with this, so I am guessing since I used a used motherboard, and anyways I wanted to change it, might as well get rid of it. 

 

Got another mobo. All other hardware remained the same. 

 

Was great for 3 days. And today - AGAIN - same issue!!!!

So I guess this is not a motherboard issue (perhaps I should not have assumed that from the get go). 

 

Anyone can tell me why is it that the PC won't wake up? 

The weird thing is, now it won't turn on AT ALL. 

I did manage to turn it on for a second, saw the fan turning and then power seems to have went off. 

 

Moved it to a different plug (i thought maybe my extender was bad) - same issue. No change. 

 

Could it be a bad power supply? 

 

Edit: it's a Seasonic gold PSU with plenty of headroom. 

 

Frustrated. 

 

Sorry for the long post. 

 

Thanks so much!

[Kirky2k15]

Why not just disable sleep and shut your computer off when your're done using it like a normal person?

[idh1oi12jkl31jk2bgve3jk12b]

Just now, Kirky2k15 said:

Why not just disable sleep and shut your computer off when your're done using it like a normal person?

 

Thank you, but I tend to leave my PC and sometimes not come back to it. I prefer it would go to sleep mode at those times (i work mostly with google docs for school reasons, and I often will have dozens of tabs with highlights open. I really like to get back to where I left things). 

 

Although your suggestion would work, I would still be curious as to why this is happening. 

 

 

[Kirky2k15]

Problem solved! Now you can turn your pc off and not contribute to global warming! congratulations!

 

[homeap5]

Check in power options (allow hybrid sleep - disable it). And check in BIOS settings for power state.

[Nocte]

13 minutes ago, Kirky2k15 said:

Problem solved! Now you can turn your pc off and not contribute to global warming! congratulations!

 

I never use sleep mode, but when a PC is sleeping it’s almost as if it was shutdown. The RAM receives just enough power not to lose the data in it and keep the PC state in memory. 
 

Everything else is basically off: fans not spinning, etc.

 

The power usage (and therefore heat output) is basically the same as a shutdown PC with the PSU turned on.