"Reboot and select proper boot device" ASRock Z75 Pro3

Green9090

Reputable
Jan 6, 2016
4
0
4,510
A couple weeks ago, my sister tried to turn on her computer and was greeted with a message saying "Reboot and select proper boot device." Going into the BIOS shows that her hard drive is still recognized and is the primary boot device; there was no other boot device plugged in.

I plugged in my DVD drive and tried to boot off a Windows 7 boot disk. It gets through loading files and to the Windows loading animation, then freezes there indefinitely, which means I cannot format the drive or otherwise interact with it.

The motherboard is an ASRock Z75 Pro3 (I am suspecting at this point that this part is faulty in some way). The hard drive is a Corsair Neutron XT 480GB CSSD.

I have tried:

0. Removing and replacing CMOS
1. Removing all unnecessary peripherals (no video or beeps with no RAM in the computer, oddly, so nothing but hard drive, CPU, and a stick of RAM)
2. Playing with boot order, no difference whether DVD drive or HDD is primary boot
3. Scrolling through BIOS aimlessly looking for a setting that might help
4. Tearing out my hair

I have not yet tried:
5. Throwing it out a window

If you guys have anything to add between step 4 and step 5, I'd be delighted to hear it. Let me know if there is any more info I can provide. Thank you for your help!
 
Hey there, Green9090!

@Blackbird is right! Your sister's drive is most probably failing. It is possible that a corrupted drive could interfere with the system's performance while it's still connected to it. So the issue with booting from the DVD could actually still be caused by the HDD if it's connected to the motherboard. I'd recommend you unplug the drive from the system and attempt to connect it externally via a SATA-to-USB cable with an AC adapter or an external enclosure. This should help you troubleshoot the drive from your system. Another thing that could help is creating a bootable flash drive with a DOS version of an HDD diagnostic utility that would allow you to test the HDD from your sister's computer without booting into Windows.
If you haven't tried that already, you might also want to swap the SATA cable connecting the HDD and changing the SATA port on the motherboard.

Keep us posted with the troubleshooting!
SuperSoph_WD
 

Green9090

Reputable
Jan 6, 2016
4
0
4,510
You guys were totally right. I had assumed not booting from another device would rule out the hard drive, did not rule out the hard drive in the simplest way of just removing it from the computer. Silly me. Windows boot disk boots totally fine when the HDD is unplugged from the mobo.

It's still under warranty, so rather than going crazy trying to troubleshoot it, I'm just gonna send it back. Thanks for your help!