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The Asrock (970 Extreme 3) board I have boots fine, it goes through the code cycles before booting to Windows. However, the freeze occurs when a USB card reader is attached, at which is just stops at A3, at which point I have to do a hard reset. The card reader is not listed as a boot device by default, and only my Optical drive and my SSD are listed as boot devices. I cannot enter the BIOS when the card reader is attached, both delete and F1 will not take me into the BIOS, it just cycles through and hits A3 at which point it doesn't continue with the boot. The PC does boot fine when the USB card reader is not connected.
Whilst the simple option would be to just remove the card reader before I turn the PC on, it's not exactly a fix for it, more so walking around the problem. From what I gather, A3 is IDE Enable. The motherboard doesn't have any IDE connectors whatsoever. I have checked the BIOS and the SATA mode is running in IDE, and the SATA IDE Combined Mode is running in Enabled. Not sure if this is relevent though.
Apparently others say that disabling USB Legacy mode will allow successful boot, since it ignores the USB devices, however doing that will disable using my keyboard and mouse in BIOS.
My board is using the BIOS version 1.0, which is the default version.
Whilst the simple option would be to just remove the card reader before I turn the PC on, it's not exactly a fix for it, more so walking around the problem. From what I gather, A3 is IDE Enable. The motherboard doesn't have any IDE connectors whatsoever. I have checked the BIOS and the SATA mode is running in IDE, and the SATA IDE Combined Mode is running in Enabled. Not sure if this is relevent though.
Apparently others say that disabling USB Legacy mode will allow successful boot, since it ignores the USB devices, however doing that will disable using my keyboard and mouse in BIOS.
My board is using the BIOS version 1.0, which is the default version.
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