Mainboard B250m Pro4 with single NVMe SSD

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   I see a very strange situation for mainboard b250m pro4.
If a single PLEXTOR 512M8PEGN NVMe SSD is connected the PC cannot boot - it begins booting and reboot, try booting again and reboot one more and so on. In this configuration PC can't boot from Windows Installation USB flash also.
If I connect a SATA HDD (it may be empty - without any volumes) the PC boot from SSD or from USB flash normally. How to get bootable system with single NVMe SSD? This is my mainboard defect or specific property? I looked the "Windows Boot Manager <PLEXTOR>" in the boot section of BIOS but can boot when system has SATA disk connected only.
System Configuration MB: ASRock B250m Pro4, CPU: Intel Pentium G4600, RAM: 16 GB SAMSUNG DDR4 2400, Disk Drive: 512 GB PLEXTOR 512M8PEGN, Graphics: Intel HD Graphics 630, OS: Win10 Pro x64
The memory has been tested using memtest and has no problem.

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pVlady Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Oct 2017 Status: Offline Points: 8	Post Options Post Reply Quote pVlady Report Post Thanks(0) Quote Reply Topic: Mainboard B250m Pro4 with single NVMe SSD Posted: 27 Oct 2017 at 5:02am
	I see a very strange situation for mainboard b250m pro4. If a single PLEXTOR 512M8PEGN NVMe SSD is connected the PC cannot boot - it begins booting and reboot, try booting again and reboot one more and so on. In this configuration PC can't boot from Windows Installation USB flash also. If I connect a SATA HDD (it may be empty - without any volumes) the PC boot from SSD or from USB flash normally. How to get bootable system with single NVMe SSD? This is my mainboard defect or specific property? I looked the "Windows Boot Manager <PLEXTOR>" in the boot section of BIOS but can boot when system has SATA disk connected only. System Configuration MB: ASRock B250m Pro4, CPU: Intel Pentium G4600, RAM: 16 GB SAMSUNG DDR4 2400, Disk Drive: 512 GB PLEXTOR 512M8PEGN, Graphics: Intel HD Graphics 630, OS: Win10 Pro x64 The memory has been tested using memtest and has no problem.

pVlady Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Oct 2017 Status: Offline Points: 8	Post Options Post Reply Quote pVlady Report Post Thanks(0) Quote Reply Posted: 27 Oct 2017 at 5:31am
	This PLEXTOR ssd has no problem with Z170 Extreme4 motherboard in single disk configuration.

pVlady Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 27 Oct 2017 Status: Offline Points: 8	Post Options Post Reply Quote pVlady Report Post Thanks(0) Quote Reply Posted: 29 Oct 2017 at 5:02am
	The problem has solved. The source of the problem was power supply. It has unstable 3.3V line. Initially voltage was 3.116V and changing from 3.104 to 3.200. When HDD connect the voltage increase to 3.392V and become more stable. The PC boot and work well with other power supply.