Hello Eugene...
I'm going to translate this for the benefit of others.
If you post in English you might get more responses. My russian is rusty since I left health care.
In the beginning I will describe the configuration:
mat. board Gigabyte GA-Z170-HD3 (s1151 , Intel Z170) - BIOS AMI EFI F6 from the factory,
the Intel processor the Core i5-6500 3.2 (3.6) GHz 6MB s1151 Box,
RAM KINGSTON HyperX Fury DDR4 2133MHz 16GB Kit 2x8GB XMP (HX421C14FB2K2 / 16 ),
graphics card Gainward GeForce GTX 960 Phantom 2048MB,
PSU CHIEFTEC CFT-650 14CS, SSD Kingston SH103S3 120Gb (with Windows 7 system (64) the ultimate),
2 pcs. HDD Samsung SP2504C and ST3640323AS,
optical drive, ASUS DRV-24B5ST,
tuner AVerMedia Technologies AVerTV Studio 307.
3pc. - Cooler.
Now the forehand to the description of the problem. The situation is after the Bios computer submits a short "beep" sound, confirming the normal start, there is a screen saver "ultra durable" (motherboard saver) to the bottom of written commands: F12, loading Bios, etc., hanging screen saver - from 1 minute to 1. , 5 min. (at this in the BIOS can not go and perform OE team), after the expiration of the time and efficiency of the diode blinking HDD can be accessed in the BIOS, or continue downloading OC ... Windows7 operating system itself works perfectly, all the programs, applications and games . Tested and tested system components - hard drives, memory, RAM, etc. No errors, integrated video (core) disabled in the bios.. (BIOS AMI EFI F6 from the factory, re do not want to flash as a motherboard under warranty). The very reason for such behavior of the motherboard, I found, at long Bios survey equipment podvesaet due to the optical drive ASUS DRV-24B5ST. I had to turn it off in the Bios. What do you, as a competent person can advise where to look, what to watch? Can that change Bios settings? Or redirect me to some sort of resource, which discussed precisely this problem. Maybe I should not pay attention to it? But it seems to me that this should not be a hang-up (such as the drive is working properly (excellent condition), a normal loop (produced substitution changed the plug connection). Thanks in advance for an expanded response. Sincerely Eugene.