Author: kartik_subbarao
Subject: Z270 Supercarrier 09/d0, can't go to backup BIOS
Posted: 23 Feb 2017 at 10:50am
Edited by kartik_subbarao - 3 hours 31 minutes ago at 10:51am
Subject: Z270 Supercarrier 09/d0, can't go to backup BIOS
Posted: 23 Feb 2017 at 10:50am
| Image may be NSFW. Clik here to view.  ultimateinternet wrote:SOLUTION: BIOS_TEST1 jumper on the board next to the DR DEBUG. short it out. boot up computer. biosB-->biosA BINGO. Good luck my friend. |
Glad to hear that that worked for you! I'm trying to sort out exactly which pins to short out, and whether to do so vertically or horizontally, since this stuff isn't documented in the manual. Next to Dr. Debug on my motherboard, I see a set of 6 jumpers which seem to be labeled as follows:
BIOS_A_LED1 J1 LED019 D_BIOS_TEST1
BIOS_B_LED1
The jumper panel is clearly visible in this image (with the top pin absent from the central "J1" jumper, assuming vertical orientation?):
I'm guessing that D_BIOS_TEST1 (the rightmost jumper assuming vertical orientation), is what corresponds to BIOS_TEST1 on your motherboard. I have a call out to ASRock on this, hopefully I'll hear back from them soon.
Edited by kartik_subbarao - 3 hours 31 minutes ago at 10:51am