I found the following motherboard link:
https://download.asrock.com/Manual/H77 Pro4MVP.pdf
[Do verify that I found the applicable user manual for the motherboard.]
If the computer/outlet is not turned on and the fans are still receiving power then the system is not truly off.
My thought is that "Sleep States" may be involved. FYI:
https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/system-sleeping-states
Question being is the computer really off with absolutely no power present.
As if the computer was completely unplugged. Power could be present at the computer any time the outlet wall switch is on even if the computer's power switch is off.
I do not know why the behavior is different between the two GPUs. Especially if nothing else is changed. Perhaps the RX 6600xt is being "sensed" and the RX580 is not sensed.
From the Microsoft sleeping states link:
"Some devices can wake the system from a sleeping state when certain events occur. In addition, on some computers, an external indicator tells the user that the system is merely sleeping."
What does the Power LED (Reference physically numbered Page 34 of the User Manual) indicate with wall switch off and on? Is the indication the same for both GPU's? If not, what is different?
Ill will try it as soon as I can because I cant get it to run due to my last available ram stick getting killed again.
As of now 4 sets of my ram sticks have been killed in less than 2 months and this motherboard has killed 3 of the sets, the last set got killed yesterday and I have been trying to find the reason.
I thought that a faulty gpu keeping the system fans on after shut down could be the issue.
1st time it died was when I oc my cpu on my old motherboard.
2nd time it died was when I was in bios changing wake from keyboard and igpu shared memory size.
3rd time it died was when I was swapping ram sticks.
4th time which was yesterday, died when I was swapping too. Made sure I touched metal and the power was off but could it be that I switched too quickly before the system lost all of its power?
Similarities between the 1,2 and 3rd time was the cpu, gpu, motherboard.
similar item between the 4th time and the 1,2,3rd time was the cpu.
The Only Similarity between All, is windows 10 was plugged in.
1st time :
Cpu: i7 3770
Gpu: 6600xt
Ram: teamgroup 32gb 1600mhz DDR3
Mobo: Intel dh77kc
Psu: evga 700br
Reason ram died: oc cpu
2nd time:
Cpu: i7 3770
Gpu: 6600xt
Ram: kingston fury 16gb 1600mhz DDR3
Mobo: Asrock H77 Pro4 mvp
Psu: evga 700br
Reason ram died:changing bios setting, wake from keyboard and igpu shared memory size
3rd time:
Cpu: i7 3770
Gpu: 6600xt
Ram: kingston 4gb 1600mhz DDR3
Mobo: Asrock H77 Pro4 mvp
Psu: evga 700br
Reason ram died: swapping ram sticks from my cousin pc into my pc.(swapped too fast?)
4th time:
Cpu: i7 3770
Gpu: RX580
Ram: Kingston fury 16gb 1600mhz DDR3
Mobo: Asrock H77 Pro4 mvp
Psu: aigo gp550
Reason ram died: swapped ram from my 16gb 1600mhz DDR3 to an 8gb 1600mhz DDR3 and back to the16gb 1600mhz DDR3, died after I changed it back.(swapped too fast?)
I've been suspecting a few things and changing a few components but still can't seem to get the ram to stop dying.
Could it be a windows setting,esd that killed ram,a faulty cpu , faulty motherboard or following this thread which is the motherboard isnt fully asleep?