check your cpu speed, make sure its not stuck @ 800mhz. You might have to turn thermal off in uefi for some reason since you changed cpu coolers.
I have used Corsair AIO's for awhile, it is important not to use to much TIM and to carefully cross tighten the block but in my experience if mounted per instructions they cannot be over tightened.
Unplug all your USB devices except for mouse and keyboard and see if that makes a difference, if not remove your add on USB card and check again, unplug the Corsair block and check if needed
I'm using the stock layer of TIM that came with the unit. It was working just fine last night. I unplugged all usb device except for the keyboard and mouse. H100i V2 is also not connected by USB either, left that cable hanging. Still taking 10 minutes to boot into windows on the 970 EVO SSD. I've tried resetting the BIOS back to default settings and nothing is helping. I'm so frustrated, I spent $2000 on this new system and it's so slow. I am able to get into windows after 10 minutes and it runs without lagging after that. This bootup time is killing me! Even going into the BIOS takes 5 minutes after pressing delete or f2.
Silent Scone@ASUS wrote:
Have you tried with nothing connected to rule out the mouse and keyboard?
Make sure to remove the add-on card as Menthol has suggested, as well as any other expansion cards.
Given what has changed, I would consider reseating the AIO and CPU as well as the memory, too.
Lastly, try the EVO in an alternative M.2 port.
I noticed that a hard drive was not showing in windows explorer. It wasn't being recognized. I disconnected the drive and the system booted up as normal. I didn't know it would affect booting because it was not the boot drive. I guess it was causing it to hang up. Just my luck, new system and a hard drive died. It was a 3 year old Seagate Barracuda. Now it's time to get that fixed.
I had the exact same issue on my new XI hero board. It would boot just fine and one morning it took over 5 minutes to shut down and 10 minutes to boot back up. I watched it patiently and I saw it list a repair process about one of my drives. I went into event viewer after that and saw countless errors all coming form one of my storage drives. I took it out and haven't had a problem since.
The more research I did. It turns out since most of these boards run on a single sata controller, and rhe way sata is designed. If one drive is corrupt or going bad, it will hang up the whole boot process as windows and the controller try to communicate. My problem was my aging Samsung 830 ssd.