MSI X99A Sli Plus Slow Boot?

[ray_tracer]

I've just built a new machine based on an MSI X99A Sli Plus board. Other components:

• 
  i7 5820K Processor
  GeForce GTX 1070 Graphics Card
  4x4GB HyperX Fury RAM
  Samsung SM950 Pro NVMe M.2 SSD
  750w Corsair PSU
  NZXT Kraken x61 Cooling

The machine is running fine and temps look good under load etc. I haven't done any overclocking yet.

The only issue is it seems to take a long time to boot. From power on its a good 20+ seconds before I get the BIOS screen. After that, Windows seems to load reasonably fast. See video here:
http://vimeo.com/185201250

Note: I have updated the BIOS to latest version and I have Fast Boot enabled (although I'm not really sure what this does).

I'm not a very experienced builder (this is only my 3rd machine) and I was hoping someone could tell me if this is "normal" or if I should investigate further. I'm a little surprised that such a reasonably high end build would take this long to boot.

Many Thanks

 

[maxwellmelon]

that is a long time.

almost wonder if its a psu taking along time to issue power good signal to the motherboard. (which is when the pc actually starts to boot somewhere around the 13,14 sec mark in the video)

honestly I don't know. though

 

[ray_tracer]

that is a long time.

almost wonder if its a psu taking along time to issue power good signal to the motherboard. (which is when the pc actually starts to boot somewhere around the 13,14 sec mark in the video)

honestly I don't know. though

Thanks for your reply. That's an interesting thought, I hadn't even thought about the PSU slowing the boot. I'm using a Corsair RM750i PSU. Haven't found anyone else complaining about slow boots with this PSU though...

 

[maxwellmelon]

that is a long time.

almost wonder if its a psu taking along time to issue power good signal to the motherboard. (which is when the pc actually starts to boot somewhere around the 13,14 sec mark in the video)

honestly I don't know. though

Thanks for your reply. That's an interesting thought, I hadn't even thought about the PSU slowing the boot. I'm using a Corsair RM750i PSU. Haven't found anyone else complaining about slow boots with this PSU though...

well it is a guess because what ever is going on is before the os so its the bios/hardware issue somewhere

 

[ray_tracer]

If anyone has any ideas about how to further narrow down the cause I'd be very grateful!

 

[ray_tracer]

OK, having done some more research it appears that 20+ seconds to POST is not all that unusual for X99 boards. This article benchmarks the POST times for a number of X99 boards and they all seem to hit similar times. http://www.anandtech.com/show/8557/x99-motherboard-roundup-asus-x99-deluxe-gigabyte-x99-ud7-ud5-asrock-x99-ws-msi-x99s-sli-plus-intel-haswell-e/12?_ga=1.243887489.582925270.1474916482

The article explains that X99 does a lot of RAM testing (speeds etc) on startup leading to longer POST times. I guess I'll just have to live with it.. not really a problem as I don't spend my day powering up and down my machine.