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6700k GPU not working with Z170 Extreme 4 Bios 7.2 |
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Murdock9 
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Joined: 16 Aug 2016 Location: Germany Status: Offline Points: 26 |
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 Topic: 6700k GPU not working with Z170 Extreme 4 Bios 7.2Posted: 04 Mar 2017 at 11:48pm |
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Hi all,
I'm unable to use the Intel 6700k's GPU on my Z170 Extreme 4 board with BIOS 7.20. The onboard display shows error b2 (or b7?) and the monitor stays black. I also reset the CMOS but that didn't help either (Display Port and HDMI both not working). When I use the backup bios (3.20), it works straight away. Known error by any chance? |
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ASRock_TSD
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Joined: 20 Mar 2015 Status: Offline Points: 8907 |
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Posted: 13 Mar 2017 at 1:58pm |
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Dear Murdock9, Greetings, this is ASRock TSD. According to debug code b7, it may be related to memory. Please re-install the CPU and memory then clear CMOS. If the problem still exists, please install only one memory module or using other memory modules. Besides, please follow below steps to update BIOS from the fail ROM for verifying: 1. Please enter to BIOS setup > Tool page > Secure Backup UEFI to backup the ROM data into the fail to boot up ROM. 2. Use Instant Flash to update BIOS to the latest P7.20 version to try: Here's the SOP of Instant Flash: 3. After finishing above steps, it may possibly able to boot up the system with BIOS P7.20 By the way, if your system is stable in previous BIOS P3.20 version, we would suggest maintaining the status. Thanks! All the best, ASRock TSD |
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EvilDragon
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Joined: 21 Jul 2016 Location: Croatia Status: Offline Points: 25 |
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Posted: 29 Jun 2017 at 10:11pm |
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Hello!
I just got the same issue (stupid me, didn't check the Internet before flashing BIOS to latest version to see any issues!). I am positive the Dr. Debug error is b2, NOT b7, and this one is not listed anywhere. Fans are working, I see disks are being accessed, but there is no picture over i7-6700K's internal graphics. I don't have a separate graphics card atall! My questions: 1. What does this error mean? 2. Since I cannot even see anything to enter BIOS, how am I supposed to roll back to previous version? 3. Tried reinstalling RAM, did not help. Please help, and FAST! I need to continue my work. By the way, if somebody wants to upgrade the CPU to i7-7700K, we NEED this BIOS version for it to work - staying on P3.20 is not an option. So the issue with no graphics over internal GPU needs to be fixed by AsRock, really - that alone is true, right? EDIT: OK, I found a switch to select the backup BIOS, I see things now. Proceeding to revert to P3.20 (mobo came with P2.40). But this is an obvious bug in P7.20 that NEEDS FIXING! Edited by EvilDragon - 29 Jun 2017 at 10:25pm |
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wardog
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Joined: 15 Jul 2015 Status: Offline Points: 6447 |
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Posted: 30 Jun 2017 at 12:25am |
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True? Meh, not necessarily. That could be THE reason the 7700K isn't fully supported till P7.00 and above. http://www.asrock.com/mb/Intel/Z170%20Extreme4/?cat=CPU b2 is "LGCY OPTION ROM INIT", which doesn't really narrow it down. But .... memory doesn't need nor have an Option ROM. GPU's and iGPU's do.
See above. |
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EvilDragon
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Joined: 21 Jul 2016 Location: Croatia Status: Offline Points: 25 |
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Posted: 30 Jun 2017 at 12:42am |
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Yeah... P7.00 or P7.20 are needed if one wants to upgrade to 7700K (which I am contemplating to do at some point). So, UEFI needs flashing before installing that CPU. So if we get no picture after flashing, it's a problem, isn't it? I wonder if the same thing would happen even with a dedicated GPU... At any rate, I'm back to P3.40 now. Phew. |
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EvilDragon wrote: