Motherboard freezes on boot screen

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   I am currently using AsRock B150M PRO4/Hyper. (I have 2 computers. This motherboard is for my second computer, and for first computer I use AsRock Z170 Extreme 4. This problem was commonly occurred in both first computer (B150M), and second computer (Z170).
All the components were assembled well, and the operating system works well. The problem occurs when I insert bootable USB (It is just not allowed to boot the system while USBs are inserted, it is okay to insert or to do any tasks with storage devices after operating system starts to work.)

The problem is that it freezes on the boot screen (that you would see AsRock logo.) for about 2~3 minutes when I boot the system within USBs inserted. and then it works well(I mean the motherboard takes few minutes to turn over the permission to control devices to operating system). When it's frozen, any keys doesn't work. Just I have to wait.

I often have to boot the system with USBs.

But, this problem is really really extremely annoying.

Would you mind helping me?

Edited by wkddmstn321 - 04 Feb 2017 at 4:45pm

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wkddmstn321 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Feb 2017 Location: ?�?�민�??�울?��??? Status: Offline Points: 4	Post Options Post Reply Quote wkddmstn321 Report Post Thanks(0) Quote Reply Topic: Motherboard freezes on boot screen Posted: 04 Feb 2017 at 3:40pm
	I am currently using AsRock B150M PRO4/Hyper. (I have 2 computers. This motherboard is for my second computer, and for first computer I use AsRock Z170 Extreme 4. This problem was commonly occurred in both first computer (B150M), and second computer (Z170). All the components were assembled well, and the operating system works well. The problem occurs when I insert bootable USB (It is just not allowed to boot the system while USBs are inserted, it is okay to insert or to do any tasks with storage devices after operating system starts to work.) The problem is that it freezes on the boot screen (that you would see AsRock logo.) for about 2~3 minutes when I boot the system within USBs inserted. and then it works well(I mean the motherboard takes few minutes to turn over the permission to control devices to operating system). When it's frozen, any keys doesn't work. Just I have to wait. I often have to boot the system with USBs. But, this problem is really really extremely annoying. Would you mind helping me? Edited by wkddmstn321 - 04 Feb 2017 at 4:45pm

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25073	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 04 Feb 2017 at 4:15pm
	What usb devices are you connecting? I take it you mean data devices not keyboard/mouse/peripherals?


wkddmstn321 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 04 Feb 2017 Location: ?�?�민�??�울?��??? Status: Offline Points: 4	Post Options Post Reply Quote wkddmstn321 Report Post Thanks(0) Quote Reply Posted: 04 Feb 2017 at 4:43pm
	Sorry. I checked it again, but it doesn't work only when the inserted USB is bootable USB.

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 04 Feb 2017 at 11:50pm
	Then it's my experience that it is not bootable. Cursor in the upper left quadrant of the screen? I would check that the settings used in the creation of the USB stick, whatever program, is correct. I better ask. This is a bootable USB stick, and not a bootable USB drive, correct.

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 04 Feb 2017 at 11:51pm
	Also, can I assume this is happening in a USB 2.0 port?