Head scratching inquiry

[alphaomega16]

Hello all, my dads PC for some reason when he chooses to restart it after it powers down it doesn't come back on straight away it stays off for like 2-3 minutes then comes to life and boots up again, has anybody ever seen this kind of behaviour before?

It was a PC I done a few years ago for him but installed an nvme drive last year but have no idea how long its been doing this.

this is the system he has copy pasted from old thread here
My basket at Overclockers UK:

• 1 x Fractal Design Core 1000 & XFX 430W 80+ Bronze PSU Bundle= £44.99
• 1 x Samsung 250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive (MZ-75E250B/EU)= £64.99
• 1 x Gigabyte GA-H170M-D3H Intel H170 (Socket 1151) DDR4 Micro ATX Motherboard= £82.99
• 1 x Team Group Elite 8GB (2x4GB) DDR4 PC4-19200C16 2400MHz Dual Channel Kit - Black (TPKD48GM2400HC16DC0= £29.99
• 1 x Intel Core i3-6100 3.70GHz (Skylake) Socket LGA1151 Processor - Retail= £99.95

 

[Tetras]

maybe is just getting old and having a moan

You could try a new battery and reseating the memory.

Does it have many USB devices plugged in?

I'd disable fast boot too.

 

[alphaomega16]

It does have a few USB's plugged in I believe, I can check on fast boot and ive not long replaced the battery as on his old windows 7 install before going to 10 the time on his computer kept going backwards, after an hour of updating time it would go back several hours, it was really odd, put on windows 10 with no key so he has the watermark but he doesn't care about that and the time thing didn't happen again so unsure as to what cause that issue.

Although he had been using the same setup for years, thanks for the suggestions, will tell him to unplug all but keyboard and mouse before the next restart to see if that changes anything.

 

[Ch3m1c4L]

Usb devices causing slow bootup (usb hard drives being detected are often the cause) or be while the power is on, and it is booting.
Your description makes it sound like the power stays off for a few minutes then it starts booting up?

 

[ANDARIAL]

Wake on lan or boot from network??
something like this set in the bios...maybe

 

[nade]

Personally I would try something simple to rule out some tricky issues.

If not already, try updating the BIOS to the latest version and maybe even do a factory reset on the BIOS.

GA-H170M-D3H (rev. 1.0) Support | Motherboard - GIGABYTE Global

Lasting Quality from GIGABYTE.GIGABYTE Ultra Durable™ motherboards bring together a unique blend of features and technologies that offer users the absolute ...

www.gigabyte.com

As others have said, best thing would be to remove everything but the essentials connected to the machine and test it out. Then try reconnecting devices one by one.