Asus Z87-A - USB Issues after BIOS update

[Mardrom]

Hello. My Asus Z87-A MotherBoard started to behave pretty strange after a BIOS update. I've updated it to 2103v. via EZ Flash with G3220 to make it compatible with my G3258 CPU. It didn't work so I have used update tool from fresh installed windows (via USB CDROM) and updated it using Windows. It worked, i replaced CPU to g3258 and tried to install new windows with my bootable pendrive (USB CDrom has gone, owner needed it 😉), but suddenly my PC stopped supporting USB devices the right way. Bootable pendrive with Win8.1 strucks (missing word- i am not sure if I should use "struck", I mean it don't want to pass the windows logo) even before installation beggins, linux displays kernel panic. I don't know what to do. If USB CDrom worked before update, then I have updated BIOS and USB devices are not working the right way, doesn't it mean that the new BIOS version is not stable? I didn't try USB drive again. I have no possibility 🙁
Which bios should I install to make sure that it will keep supporting my G3258 Haswell refresh CPU and I will not have to go and borrow g3220 once more?

 

[DeltaBravo]

A couple of things you can try (refer to for details: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1150/Z87-A/E7828_Z87-A.pdf). Before trying anything, check to see if your USB settings were changed at all after the BIOS update. I am guessing not likely since it boots, just doesn't work. Try another USB port - prefer one on the back of the motherboard instead of one via a cable to the front of the computer or elsewhere. If that doesn't work, could try 1) Reflash the bios again if it will let you; 2) Save your BIOS configuration options if you can save to a file (didn't see that as an option in the manual), or else jot them down; 3) turn off the computer, remove the power cord, remove the CMOS battery (button battery), and short (move) the clear CMOS jumper on the motherboard (see page 1-29) to clear the CMOS. 4) wait about 30 seconds; 5) replace the jumper back to it's original setting; 6) put the battery back in; 7) plug back in the cable; 8) go into the bios and reset/load optimized defaults; 9) reload your BIOS settings file if you were able to create one, or manually enter it if you had to jot it down. That's what I would try on my end. Good luck and let me know if it worked or not.

 

[Mardrom]

Well I was using only rear ports, front ones are not plugged at all. Windows boots, but after 5 seconds strucks and shows bluescreen (i mean windows installation). I have reflashed it again but the same thing is happening (bios version is still 2103 because I have chosen this one just to reflash). Cmos will not work if bios reflash didnt work right? Maybe I should try install earlier version? I am really afraid that I will install one of earlier ones and loose compatibility. I don't want my pc not to boot up again 😀