PC won't turn OFF completly

[londonerupnorth]

ever since HP replaced my motherboard under warranty some time ago my machine wont fully power off, windows shuts down and it goes through the usual process and then I hear my speakers cutting off and the display also stops receiving a signal but the power light stays on and I can still hear fan's running meaning I have to hold down the power button to fully turn it off. I've updated the BIOS, checked all drivers are upto date changed all the power options in windows and disabled fast boot and replaced the PSU but nothing has made any difference. Any idea's would be great!

Thanks

Spec's:

Windows 10 Home (64 bit)

Intel Core i7 6700K @ 4.00GHz
Skylake 14nm Technology

Nvidia gtx 980Ti

32Gb Ram


476GB SAMSUNG MZ7LN512HCHP-000H1 (SSD)
2794GB Western Digital WDC WD30EZRX-60D8PB0 (SATA)

Realtek High Definition Audio

Motherboard:
Manufacturer HP
Model 2B4B (U3E1)
Version 1.04
Chipset Vendor Intel
Chipset Model Skylake
Chipset Revision 07
Southbridge Vendor Intel
Southbridge Model Z170
Southbridge Revision 31
System Temperature 28 °C
BIOS
Brand AMI
Version A0.38
Date 29/09/2016

 

[Lutfij]

After the motherboard replacement, did you reinstall your OS? Or are we talking about a system that has seen a clean install of OS? Can you include the make and model of your PSU? It also seems like you're working with an HP prebuilt system, mind sharing the SKU/model?

 

[londonerupnorth]

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[londonerupnorth]

After the motherboard replacement, did you reinstall your OS? Or are we talking about a system that has seen a clean install of OS? Can you include the make and model of your PSU? It also seems like you're working with an HP prebuilt system, mind sharing the SKU/model?

Thanks for you're reply

They did not reinstall windows but since having back I have done a reinstall choosing to delete all user settings and data and reinstall windows. It came with a stock PSU but I've recently upgraded that to a Corsair CP-9020103-UK CX Series CX650M ATX/EPS Semi-Modular 80 Plus Bronze 650 W. Found here https://www.amazon.co.uk/gp/product/B01C3FFATU/ref=oh_a...

The model is HP ENVY Phoenix Desktop - 860-090nz (ENERGY STAR)

and can be found here: https://support.hp.com/us-en/product/HP-ENVY-Phoenix-86...

I'll add that the problem was only there from the time I got it back from HP and the only thing they changed is the MB (or so they said)

 

[Seanie280672]

After the motherboard replacement, did you reinstall your OS? Or are we talking about a system that has seen a clean install of OS? Can you include the make and model of your PSU? It also seems like you're working with an HP prebuilt system, mind sharing the SKU/model?

Thanks for you're reply

They did not reinstall windows but since having back I have done a reinstall choosing to delete all user settings and data and reinstall windows. It came with a stock PSU but I've recently upgraded that to a Corsair CP-9020103-UK CX Series CX650M ATX/EPS Semi-Modular 80 Plus Bronze 650 W. Found here https://www.amazon.co.uk/gp/product/B01C3FFATU/ref=oh_a...

The model is HP ENVY Phoenix Desktop - 860-090nz (ENERGY STAR)

and can be found here: https://support.hp.com/us-en/product/HP-ENVY-Phoenix-86...

I'll add that the problem was only there from the time I got it back from HP and the only thing they changed is the MB (or so they said)

Just to add my 2c worth, when I built my new Ryzen machine recently, and installed windows 10, mine was doing the same thing shortly afterwards, I think its one of the windows updates causing it, or windows itself, a reformat and re-install fixed the problem for me.

 

[londonerupnorth]

After the motherboard replacement, did you reinstall your OS? Or are we talking about a system that has seen a clean install of OS? Can you include the make and model of your PSU? It also seems like you're working with an HP prebuilt system, mind sharing the SKU/model?

Thanks for you're reply

They did not reinstall windows but since having back I have done a reinstall choosing to delete all user settings and data and reinstall windows. It came with a stock PSU but I've recently upgraded that to a Corsair CP-9020103-UK CX Series CX650M ATX/EPS Semi-Modular 80 Plus Bronze 650 W. Found here https://www.amazon.co.uk/gp/product/B01C3FFATU/ref=oh_a...

The model is HP ENVY Phoenix Desktop - 860-090nz (ENERGY STAR)

and can be found here: https://support.hp.com/us-en/product/HP-ENVY-Phoenix-86...

I'll add that the problem was only there from the time I got it back from HP and the only thing they changed is the MB (or so they said)

Just to add my 2c worth, when I built my new Ryzen machine recently, and installed windows 10, mine was doing the same thing shortly afterwards, I think its one of the windows updates causing it, or windows itself, a reformat and re-install fixed the problem for me.

The only part of that I haven't tried is formatting the drive, I have re installed windows a couple of times it just seem's like too much of a coincidence that it only did it after the motherboard was replaced but it could be just that