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i have an ASRock z68 extreme 4 gen 3 running an i5 2500k, 16GB Corsair 1600MHz RAM, HIS Radeon HD6950 2GB, Corsair AX850 PSU, 60GB OCZ SSD running win7 home prem, 1TB HITACHI 7200rpm HDD. I have other hardware but for this problem i don't think they matter.
When booting my mobo showed the bios boot screen and stopped for 90 seconds dr debug code is either b4 or 64 (i can't distinguish). I flashed my bios (to try to fix and to be able to run 3770k). Now the same code shows but when it resumes it then stops at b2 or 62 for 75seconds. Then it takes up to 2 minutes to boot into windows and the first boot always goes to black screen, the mouse curser is there but the keyboard does not work. Each reboot takes up to five minutes. Can anyone help me?
I have sovled the issue. The code was actually b4 and b2. They both referred to usb legacy. Have always had legacy usb3.0 and usb2.0 enabled. I disabled this is the bios and now is all good :-)
When booting my mobo showed the bios boot screen and stopped for 90 seconds dr debug code is either b4 or 64 (i can't distinguish). I flashed my bios (to try to fix and to be able to run 3770k). Now the same code shows but when it resumes it then stops at b2 or 62 for 75seconds. Then it takes up to 2 minutes to boot into windows and the first boot always goes to black screen, the mouse curser is there but the keyboard does not work. Each reboot takes up to five minutes. Can anyone help me?
I have sovled the issue. The code was actually b4 and b2. They both referred to usb legacy. Have always had legacy usb3.0 and usb2.0 enabled. I disabled this is the bios and now is all good :-)