Brand new Maximus XII Apex won't shut down with windows

**1mluer** · 06-11-2020 12:34 AM

Hey Guys,

I was posting this to see if anyone has any thoughts on it. I loaded up my new Maximus XII Apex today and got it setup and running well. Easy as always. I go to shut down the machine via windows and boom problem. Windows will shut down. The motherboard looks like it cycles down and the QCode shows 00. I think the system thinks it shut down but in reality all the fans start speeding up most of the system looks live because of it.

I do notice some usb devices do shut down such as my Ryujin 360 goes dark like it should. Additionally the gskill RAM goes dark too like normal. The Riing Plus fans stay on and the RGB is lit up as well as the Ryujin fans it seems are still run.

I cleared CMOS and upgraded bios to 0607 which was recently released. Still the same thing. I am still troubleshooting without luck so far eliminating non essential connected devices. No luck so far. I have a ASUS Thor 1200P power supply so I know that is good.

I am not sure what the QFAN stuff is all about but it's all disabled. Armory Crate loaded with the new windows and seems to be running great loading all devices and is easily configured and saved.

**Braegnok** · 06-11-2020 01:25 AM

Try going into Windows Power Options, and if fast startup is enabled than disable it, that might be issue.
https://www.windowscentral.com/how-d...0-fast-startup

**1mluer** · 06-14-2020 09:19 PM

Originally Posted by Braegnok

Try going into Windows Power Options, and if fast startup is enabled than disable it, that might be issue.
https://www.windowscentral.com/how-d...0-fast-startup

Ok I tired shutting down this setting. The system still has many fans including the Matrix 2080 ti fans spinning up to about 100% when shutting down. I have built all of machines since 1987. This one is acting very weird like it's a BIO issue or something. several parts of the mother board do shut down and some parts don't shut down.

**1mluer** · 06-15-2020 03:42 AM

I made a video of what it's doing.

https://youtu.be/j9SaGFwFxDI

**Feklar** · 06-16-2020 10:18 AM

This happened to me once years ago. After checking everything as you did it turned out to be the either the power supply or perhaps the 24 pin cable or connector. I swapped in a different power supply and the problem was immediately corrected. Hope that isn't the case for you but a possibility worth checking in to.

**SimselOr** · 06-16-2020 12:22 PM

Had the same problem...
Did you overclock the CPU cache? Could solve it with this (down from 5200 to 5000). Did you flash the network card?

Greetings

Simsel

**1mluer** · 06-17-2020 04:14 AM

I currently dont have it over clocked at all. the Thor 1200p was working perfect just 30 minutes prior when I pulled out the Z390 and put in the Z490. I can check the 24 pin connector again..

**1mluer** · 06-17-2020 04:17 AM

Originally Posted by SimselOr

Had the same problem...
Did you overclock the CPU cache? Could solve it with this (down from 5200 to 5000). Did you flash the network card?

Greetings

Simsel

the network card is the ASUS XG-C100C 10g nic. I haven't flashed it and I don't see a flash for it anywhere on site. Either way I took that card completely and plugged in the onboard 2.5g NIC.. Didn't change.

**Shamino** · 06-17-2020 06:49 AM

presumming u dont have 2 power supplies, eg additional one feeding power into vga or any other components:

power is leaking in from somewhere-> possible sustpects -> monitor via the cables. try just unplugging the cables while shutting down
or some other peripherals that has its own power

**Falkentyne** · 06-17-2020 03:02 PM

Originally Posted by 1mluer

I made a video of what it's doing.

https://youtu.be/j9SaGFwFxDI

Do you have another power supply you can get access to and try?
This seems power or USB related or something plugged into somewhere.
I saw my MSI laptop do this a few times. Very rarely, almost never but it happened.
And I remember it only happening when I had some USB device plugged in beforehand and I forgot what it was,
but it didn't happen on the very next boot even with that same device...

But yes maybe it's inconvenient but try to get access to another PSU to test (Even if you have to buy and RMA).

Another thing you can try:
Try unplugging all of the RGB (cough) headers from the motherboard so only RAM and other "passive self powered" non-addressable RGB is left connected. So no RGB fans and etc. Remove all of the onboard RGB connector cable stuff, then see if it happens.

1mluer PC Specs
Motherboard	Maximus XII Apex
Processor	I9-10900k
Memory (part number)	Gskill Trident Royal 4400
Graphics Card #1	ROG Matrix 2080 ti
Sound Card	built in
Monitor	ASUS Swift PG348Q
Storage #1	Samsung 970 EVO Plus Raid
Storage #2	Samsung 970 EVO Plus Raid
CPU Cooler	Ryujin 360
Case	InWin 909 Silver
Power Supply	ROG Thor 1200p
Keyboard	ASUS ROG Claymore
Mouse	Logitech G900
Mouse Pad	ASUS ROG Baltheus
Headset/Speakers	Bose Computer Set with Sub
OS	Windows 10 Pro
Network Router	NightHawk RAX200
Accessory #1	TT Riing Plus
Accessory #2	Blue Microphone

Braegnok PC Specs
Motherboard	Asus Crosshair X670E Gene
Processor	AMD Ryzen 9 7950X
Memory (part number)	CMT32GX5M2B6000Z30K
Graphics Card #1	EVGA RTX 3090 Ti FTW3 Ultra
Monitor	Alienware AW3423DW
Storage #1	Samsung 990 Pro
CPU Cooler	Optimus AM5 Foundation
Case	NZXT H9 FLOW CM-H91FB-01 (Black)
Power Supply	SeaSonic Prime TX-1600
Keyboard	Das Keyboard 4 Ultimate
Mouse	G502 Lightspeed
Headset	SteelSeries Arctis Pro
OS	Windows 11 Pro

1mluer PC Specs
Motherboard	Maximus XII Apex
Processor	I9-10900k
Memory (part number)	Gskill Trident Royal 4400
Graphics Card #1	ROG Matrix 2080 ti
Sound Card	built in
Monitor	ASUS Swift PG348Q
Storage #1	Samsung 970 EVO Plus Raid
Storage #2	Samsung 970 EVO Plus Raid
CPU Cooler	Ryujin 360
Case	InWin 909 Silver
Power Supply	ROG Thor 1200p
Keyboard	ASUS ROG Claymore
Mouse	Logitech G900
Mouse Pad	ASUS ROG Baltheus
Headset/Speakers	Bose Computer Set with Sub
OS	Windows 10 Pro
Network Router	NightHawk RAX200
Accessory #1	TT Riing Plus
Accessory #2	Blue Microphone

1mluer PC Specs
Motherboard	Maximus XII Apex
Processor	I9-10900k
Memory (part number)	Gskill Trident Royal 4400
Graphics Card #1	ROG Matrix 2080 ti
Sound Card	built in
Monitor	ASUS Swift PG348Q
Storage #1	Samsung 970 EVO Plus Raid
Storage #2	Samsung 970 EVO Plus Raid
CPU Cooler	Ryujin 360
Case	InWin 909 Silver
Power Supply	ROG Thor 1200p
Keyboard	ASUS ROG Claymore
Mouse	Logitech G900
Mouse Pad	ASUS ROG Baltheus
Headset/Speakers	Bose Computer Set with Sub
OS	Windows 10 Pro
Network Router	NightHawk RAX200
Accessory #1	TT Riing Plus
Accessory #2	Blue Microphone

Feklar PC Specs
Motherboard	Asus Maximus Z690 Apex
Processor	i9 12900k
Memory (part number)	G.SKILL Trident Z5 RGB 32GB (2 x 16GB) DDR5 6000 F5-6000U4040E16GX2-TZ5RK
Graphics Card #1	EVGA GeForce RTX 3090 Ti FTW3 ULTRA w/ Ek Waterblock
Monitor	LG38gl950g
Storage #1	Samsung 870 Evo 2TB
Storage #2	850 Evo 1TB and 2TB
CPU Cooler	Custom Water Cooling
Case	Fractal Meshify 2 XL
Power Supply	EVGA SuperNOVA 1000 T2
Keyboard	Logitech G513 Carbon
Mouse	Logitech G502 Hero
Headset	Audio Technica ath-msr7b
Headset/Speakers	Topping D70s DAC and Topping A90 Headphone Amp
OS	Windows 10 Professional
Accessory #1	Mo-Ra 3 Pro 4x180 Radiator
Accessory #2	Koolance Fittings and QDC's
Accessory #3	EK Velocity 2 CPU block w/EK Vector GPU block

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