Question When we test BIOS recovery function on H11/H12 series motherboard. The test failed with both rear USB ports on H11DSU-iN, it will hang at "07" post code, any suggestions? Answer It must be native USB port for BIOS recovery. For example, with H11DSU-iN; the USB port (USB2-TypeA) support BIOS recovery function. However, rear USB port USB 0/1 and front USB 3/4 through header does not support. You can refer the following picture for the USB2 position and continue BIOS recovery testing. Following is H11/H12 series motherboard native USB port information for reference. H11DSU-iN Native USB port: USB 2 H11SSW-iN/NT Native USB port: USB 4, USB 6/7 H11DSi Native USB port:USB 4/5 H11SSL Native USB port: USB 4/5, USB 8 H11DST-B: Native USB port: USB 0/1, USB 3 H12DST-B: Native USB port: USB 0/1, USB 3 H12SSW-iN/-NT Native USB port: USB 4, USB 5/6 H12SSL-i/C/CT/NT Native USB port USB 2/3 Was this FAQ helpful? YES      NO Enter Comments Below: Note: Your comments/feedback should be limited to this FAQ only. For technical support, please send an email to support@supermicro.com.  Enter your email address below if you'd like technical support staff to reply:  Please type the Captcha (no space) A 3 7 N FAQ Stats FAQ ID Related Category / Keyword Date Posted Code 26302 BIOS: - BIOS Update 08/10/17     Print Answer