ASRock Forums : No bios screen asrock z77 extreme6 https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 30 Apr 2026 17:03:03 +0000 Sun, 09 Aug 2015 14:15:17 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=557 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[No bios screen asrock z77 extreme6 : Great, glad that worked for you....]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2783&title=no-bios-screen-asrock-z77-extreme6#2783 Author: parsec
Subject: 557
Posted: 09 Aug 2015 at 2:15pm

Great, glad that worked for you. It should have worked, and did. Cool

Enabling that option allows a video card and the Intel IGPU to be active and sending a signal to their own monitor at the same time. That's the only scenario that it makes sense to have that option enabled.
]]> Sun, 09 Aug 2015 14:15:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2783&title=no-bios-screen-asrock-z77-extreme6#2783 <![CDATA[No bios screen asrock z77 extreme6 : Removing the graphics card did...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2716&title=no-bios-screen-asrock-z77-extreme6#2716 Author: Polymer
Subject: 557
Posted: 07 Aug 2015 at 4:30am

Removing the graphics card did the trick! A clarifying question.

Do you recommend IGPU-multi monitor be left disabled all the time, or only when I set the primary graphics adapter to onboard?
]]> Fri, 07 Aug 2015 04:30:05 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2716&title=no-bios-screen-asrock-z77-extreme6#2716 <![CDATA[No bios screen asrock z77 extreme6 : Polymer wrote:I have a similar...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2709&title=no-bios-screen-asrock-z77-extreme6#2709 Author: parsec
Subject: 557
Posted: 07 Aug 2015 at 1:26am

Originally posted by Polymer Polymer wrote:

I have a similar story. my motherboard is a z77 extreme4. I'm on windows 7, I disabled nvidia graphics and switched the dvi cable to the motherboard. It was Intel HD4000, and worked. I restarted my computer, but the screen was blank, though I could hear windows turning on.

I reset my bios by taking out the battery, waiting a minute, and putting it back in (forgot there was a motherboard switch for this >_<). Now the computer doesn't boot, and the motherboard cycles through error codes, ending on A2.

Thoughts on this would be great.


The A2 POST code is a SATA/drive issue, BUT as I recall with my Z77 Extreme4 board, when you are in the UEFI/BIOS, that is the code that is displayed, so not a problem.

Since you cleared the CMOS, you would normally see a message about pressing DEL, etc, to enter the UEFI or it will timeout and boot. In your case I bet the board went to the UEFI UI because you removed the battery, but you still have the display problem, so could not tell.

If your video card is still in the PC, the board thinks you are still using the video card, even without a cable connected to it.

Try removing the video card, which will force the use of the integrated graphics, regardless of the setting of Primary Graphics Adapter in Northbridge Configuration.

When (if) you get into the UEFI, check the setting of IGPU Multi-Monitor in Northbridge Configuration. The default is Enabled, which allows the IGPU and video card to operate at the same time. IMO, that setting can cause the problem you have when a video card is installed but no cable is connected to it. If you have the configuration again with the video card installed but all cables removed from it, set IGPU Multi-Monitor to Disabled when you set Primary Graphics Adapter to Onboard.

]]> Fri, 07 Aug 2015 01:26:16 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2709&title=no-bios-screen-asrock-z77-extreme6#2709 <![CDATA[No bios screen asrock z77 extreme6 : Taking out the battery for 1 min...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2706&title=no-bios-screen-asrock-z77-extreme6#2706 Author: Xaltar
Subject: 557
Posted: 07 Aug 2015 at 12:56am

Taking out the battery for 1 min doesn't seem to be enough to clear CMOS on newer boards. Generally I take the battery out for 4 hours after having unplugged the power from the PC and holding down the power button to discharge the psu. Clear CMOS via jumper does not seem to be effective in most situations so I tend to recommend the battery route or both in combination. 

Try the battery removal again and see if that helps.
]]> Fri, 07 Aug 2015 00:56:29 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2706&title=no-bios-screen-asrock-z77-extreme6#2706 <![CDATA[No bios screen asrock z77 extreme6 : I have a similar story. my motherboard...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2705&title=no-bios-screen-asrock-z77-extreme6#2705 Author: Polymer
Subject: 557
Posted: 07 Aug 2015 at 12:18am

I have a similar story. my motherboard is a z77 extreme4. I'm on windows 7, I disabled nvidia graphics and switched the dvi cable to the motherboard. It was Intel HD4000, and worked. I restarted my computer, but the screen was blank, though I could hear windows turning on.

I reset my bios by taking out the battery, waiting a minute, and putting it back in (forgot there was a motherboard switch for this >_<). Now the computer doesn't boot, and the motherboard cycles through error codes, ending on A2.

Thoughts on this would be great.
]]> Fri, 07 Aug 2015 00:18:39 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2705&title=no-bios-screen-asrock-z77-extreme6#2705 <![CDATA[No bios screen asrock z77 extreme6 : What CPU are you using with that...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2682&title=no-bios-screen-asrock-z77-extreme6#2682 Author: parsec
Subject: 557
Posted: 06 Aug 2015 at 1:54am

What CPU are you using with that board?

Try clearing the CMOS/BIOS with the jumper on the board, with the AC power removed from the PSU, etc.
]]> Thu, 06 Aug 2015 01:54:48 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2682&title=no-bios-screen-asrock-z77-extreme6#2682 <![CDATA[No bios screen asrock z77 extreme6 : Alright so I went home last night...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2677&title=no-bios-screen-asrock-z77-extreme6#2677 Author: gathomas72
Subject: 557
Posted: 05 Aug 2015 at 9:22pm

Alright so I went home last night and made sure the display found the correct source and and still nothing.  Tried a second display via, DVI,VGA, and HDMI and nothing.   Also I pressed the clear CMOS button and nothing.   ]]> Wed, 05 Aug 2015 21:22:35 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2677&title=no-bios-screen-asrock-z77-extreme6#2677 <![CDATA[No bios screen asrock z77 extreme6 : I&#039;ll have to attempt to force...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2663&title=no-bios-screen-asrock-z77-extreme6#2663 Author: gathomas72
Subject: 557
Posted: 05 Aug 2015 at 2:52am

I'll have to attempt to force the display to find the source, but I did move the cable and removed the card just to be sure.  It's going from DVI to DVI.  ]]> Wed, 05 Aug 2015 02:52:10 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2663&title=no-bios-screen-asrock-z77-extreme6#2663 <![CDATA[No bios screen asrock z77 extreme6 : The cable check idea above is...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2653&title=no-bios-screen-asrock-z77-extreme6#2653 Author: parsec
Subject: 557
Posted: 04 Aug 2015 at 11:47pm

The cable check idea above is valid of course, as well as removing the cable from the video card if you have a cable connected to both video sources.

Another possibility is your monitor is not set to auto-switch its input, if you are using a different cable type (DVI vs HDMI for example) with the onboard video. We ALL have been burned by that once or twice.

Otherwise, I suggest clearing the CMOS/BIOS and starting over. Your board has a Clear CMOS button on the IO panel, so you don't need to open the PC case.
]]> Tue, 04 Aug 2015 23:47:36 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2653&title=no-bios-screen-asrock-z77-extreme6#2653 <![CDATA[No bios screen asrock z77 extreme6 : Silly question but did you switch...]]> https://forum.asrock.com/forum_posts.asp?TID=557&PID=2652&title=no-bios-screen-asrock-z77-extreme6#2652 Author: Joe-912
Subject: 557
Posted: 04 Aug 2015 at 10:22pm

Silly question but did you switch the cable to onboard connection?]]> Tue, 04 Aug 2015 22:22:59 +0000 https://forum.asrock.com/forum_posts.asp?TID=557&PID=2652&title=no-bios-screen-asrock-z77-extreme6#2652