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Z97 Extreme6 Post Error 64 |
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hootie976 
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Joined: 29 May 2020 Location: Tennessee Status: Offline Points: 1 |
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 Topic: Z97 Extreme6 Post Error 64Posted: 30 May 2020 at 12:04am |
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I just had the exact same snafu. I thought it was 64 and couldn't figure out what was going on. B4 makes so much more sense. I forgot I had inserted an SD card into my USB SD card reader yesterday. Apparently my system was trying to boot from the card and freezing on B4.
Thanks for the clarification @Xaltar |
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Houston
i7 9700K 5.1Ghz ASRock Z390 Taichi |
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travers
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Joined: 01 Jan 2019 Status: Offline Points: 6 |
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Posted: 19 Mar 2019 at 8:13am |
Holy hell Thanks for this |
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rustybh1
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Posted: 11 Nov 2015 at 3:30am |
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Thanks again. Just returned my PC to the EXACT same configuration it was in before and it boots no problem. Now that I know a '6' is actually a 'B' I should be good from now on. Thanks again
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Xaltar
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Joined: 16 May 2015 Location: Europe Status: Offline Points: 31963 |
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Posted: 11 Nov 2015 at 3:06am |
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Hope it sorts your issue
 I once spent days trying to figure out a problem with my system not posting, I replaced RAM, PSU, CPU and tried a different GPU and finally replaced the mobo only to discover it was a bad SATA cable which caused the new mobo to not post either
 Always check the simple things first. |
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rustybh1
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Posted: 11 Nov 2015 at 3:02am |
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OMFG!!!!! I'm such a dumbass!!! It must have been B4 all along and not 64!. THank you so much guys, and sorry for the newbie error. Now just have to work out which USB device is bad.
Cheers |
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Xaltar
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Posted: 11 Nov 2015 at 2:55am |
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The error code on the Dr. Debug LED is probably b4 too and according to your manual that is a problem with a USB device. Try disconnecting all USB devices other than keyboard and see if that sorts you out ;)
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rustybh1
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Posted: 11 Nov 2015 at 2:48am |
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Thanks, done all that. Now when I boot I get the ASRock post screen as I did before, but pressing F2 turns the screen blank and then 5 seconds later "B4" appears in the bottom right corner of the screen, with nothing else displayed. Also still have the 64 post error on the MoBo.
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parsec
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Posted: 11 Nov 2015 at 1:54am |
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Since you don't have the manual anymore (I'm guessing, although you can download it), this is the instructions for using and recovering the primary BIOS from the backup BIOS:
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Xaltar
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Posted: 11 Nov 2015 at 1:34am |
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At the bottom corner of your board near the reset and power buttons there is a little switch. Make sure you power down the system, remove the power cord then press the power button to discharge any residual power then once all the lights on the board are off and there is no power to the system at all flip the switch to its alternate position then power up the system again.
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rustybh1
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Posted: 10 Nov 2015 at 11:25pm |
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No, how do I do that?
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rustybh1 wrote: