Z87 G65 not starting properly "9c" error

[flyinspageti]

Whenever I try a fresh start I see "9c" in the corner and it does nothing besides that. Simply hitting the restart button on my pc is enough to make it work however. Why does it do this?

 

[badboy2k]

9C = USB Detect  so its either a incompatible USB device connected or your boot order is looking for a USB drive to boot from!

can you try with your keyboard or mouse connected to a USB 3.0 port and see if that error stops please?

 

[flyinspageti]

Oh I changed the boot order to be usb drive first when I was installing windows from via usb. Set it to my hard drive first and that seemed to have fixed it. Thanks!

 

[badboy2k]

your welcome! that was a very common mistake as that was one of the 2 main possibilitys and the boot order is the most common so I'm not surprised that it was the boot order!

anyway have fun with the computer now that its not doing the 9c on you.... 

 

[ausrun]

I have the z87 pcmate with the same error.  Have fixed the boot order as suggested.  Seems to be a USB device problem.  The problem device is a USB hub that also has an integrated sdcard slot and slots for other formats.  It is a powered hub and has a keyboard and touch screen attached to it.  The problem seems to be the hub itself, but hard to know for sure (yet).  Do you support attached hub?  Does the card slot cause the problem?

Thx,
brad

 

[badboy2k]

some USB hubs are issues and cause the problem (even just some normal ones) and hubs are hit and miss i think its something to do with the devices firmware!

 

[ausrun]

There's no way to turn off the USB bus walking?  If I just keep it unplugged until windows itself starts to boot, everything is fine.  But this isn't a permanent solution.

 

[TZBC]

ausrun,

Try disconnect the USB hub to see if still got 9C error,
also you could try to disable the XHCI and AHCI settings in BIOS to see if work.

 

[ausrun]

Removing the hub worked.  Turning off the two switches improves the results, but it still locks up sometimes.  Weird.  Trying to just work around the need for a hub.  But roadblocked on a display problem at the moment.  Thanks.

 

[Nichrome]

@ausrun

Please next time open your own topic instead of resurrecting old one
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