VT-D Support for Fatal1ty Z97M Killer
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=2158
Printed Date: 18 Jul 2025 at 11:00pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: VT-D Support for Fatal1ty Z97M Killer
Posted By: mrcs
Subject: VT-D Support for Fatal1ty Z97M Killer
Date Posted: 06 Mar 2016 at 4:50pm
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Hi out there .. looking for some information to this topic. In detail it would be most important to know if the specific mainboard ( Fatality Z97M Killer ) supports the virtualization technologie VT-D My I7 4770K does not and when the Mainboard also does not, then it would be stupid to go for a VT-D capable Xeon CPU. And if not, then it would be important to know witch Skylake-mATX-Boards support VT-D. Greeetings
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Replies:
Posted By: mrcs
Date Posted: 08 Mar 2016 at 2:36am
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Still no answer after 28 hours? This question has to be pretty easy to answer from the techs
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Posted By: Xaltar
Date Posted: 08 Mar 2016 at 2:57am
These are user forums not tech support  While "ASRock_TSD" is a tech support representative the rest of us are just users like yourself, even us moderators. We can only answer questions we know the answer to and I prefer not to make guesses that could lead another forum member to waste time or money should I be wrong. ASRock_TSD is on the forums on occasion but usually to address wide spread issues. If you want to get a response from Tech Support you can contact them directly by clicking the "Support" link at the top left of every forum window when scrolled to the top. Good luck. If anyone else has an answer for you I am sure they will post it.
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Posted By: parsec
Date Posted: 08 Mar 2016 at 1:23pm
According to Intel, the Z97 chipset does not support VT-d. Scroll down on the page below to see that spec: http://ark.intel.com/products/82012/Intel-DH82Z97-PCH" rel="nofollow - http://ark.intel.com/products/82012/Intel-DH82Z97-PCH You then mention Skylake, which I assume you know is based on the Intel 100 series chipset, not the 9 series chipset. For Skylake boards, VT-d is supported by the Z170, H170, H110, Q170, Q150, and B150. That is all the mainstream Skylake chipsets. If you want to check this yourself, go to Intel's website and their "ARK Home", select a processor you are considering and display its specs. On the left there's an entry for "Compatible Products", which then lists all the chipsets that work with the processor. Click each chipset for it's information like in the link above. Then again, does the board support it too? Choose a board, click on the manual link, skip to the Advanced, CPU Configuration UEFI/BIOS information, and look for a VT-d option. ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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mrcs wrote:Posted By: mrcs
Date Posted: 08 Mar 2016 at 8:34pm
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This i got from the tech support via mail: Hello,
if CPU support VT-D = The mainboard support it as well??u>
All socket 1150 CPU that support VT-D: http://ark.intel.com/search/advanced?s=t&SocketsSupported=FCLGA1150&VTD=true" rel="nofollow - http://ark.intel.com/search/
All socket 1151 CPU with VT-D support: http://ark.intel.com/search/advanced?s=t&SocketsSupported=FCLGA1151&VTD=true" rel="nofollow - http://ark.intel.com/search/
Best regards,
ASRock Support
So ... what is correct now? |
Posted By: Xaltar
Date Posted: 08 Mar 2016 at 8:49pm
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What they are saying is that if the CPU supports it then so does the motherboard. If a CPU without support is installed in a motherboard then the option disappears from the UEFI (would have been grayed out in the days of BIOS). As you can see on the links they provided you there is a "VT-D = yes" filter applied.
I find it very odd that your i7 4770K seems to be the only i7 not listed with support. It may be an error in the data on the ARK site, you could contact intel and ask them. Given the 4770 (non K) is in fact listed it stands to reason that the 4770k should be too. -------------
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Posted By: mrcs
Date Posted: 08 Mar 2016 at 9:05pm
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After a little bit of research it seems like this: initial Haswell "k" CPUs dont support vt-d 4770 = vt-d - 4770k = no vt-d Haswell Refresh "k" CPUs suppert vt-d 4790 = vt-d - 4790k = vt-d This is alos for the i5 series ... so it seems my CPU just dont support vt-d by itself
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Posted By: Xaltar
Date Posted: 08 Mar 2016 at 9:16pm
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That may well be the case, it is possible they disabled VT-D on the first series of Haswell K CPUs due to the overclocking features but then left it in place on the refresh or Devils Canyon CPUs, likely because the feature proved stable even with an overclock in place. In that case a Xeon or even an i7 4790k should give you VT-D support. I wouldn't bother upgrading from Haswell to Skylake as the performance gains are negligible and as with most new architectures there still seem to be a fair number of bugs in Skylake systems. -------------
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Posted By: mrcs
Date Posted: 08 Mar 2016 at 9:47pm
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yeah thx but the mainquestion is about the board and not the cpu cause i will buy a xeon cpu anyway.
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Posted By: Xaltar
Date Posted: 08 Mar 2016 at 10:22pm
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If tech support says it is dependent on the CPU then that means that all Haswell based boards must have support for it. -------------
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Posted By: mrcs
Date Posted: 08 Mar 2016 at 10:39pm
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Yeah thats what i think also ... but ... e.g. the fatality z97X Killer ( not 97M ) ( difference is fullsize ATX vs mATX ) has VT-D support shown in the manual on page 88 in the pdf ! the 97M doesnt :( to be honest i am pretty new to uefi so i dont know if the vt-d support is only shown on screen when a vt-d capable cpu is installed. Hmm ... i really dont like situations where i dont know things exactly
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Posted By: parsec
Date Posted: 08 Mar 2016 at 10:47pm
Isn't this fun!  The only "spec" we've not shown is whether or not the processor and chipset must BOTH support VT-d in order for it to work. Good luck finding that one...  Yes, nothing like being exactly not certain what is correct.  ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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Posted By: Xaltar
Date Posted: 08 Mar 2016 at 11:35pm
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The option will only be visible if the CPU supports it. Tech support did not mention any exceptions so I would assume the Z97M should be capable. -------------
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Posted By: mrcs
Date Posted: 08 Mar 2016 at 11:55pm
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Ok, I found the Quirk wich was confusing me. In the Z97X manual there are prett easy to see VT-D Options. On the Picture shown and also in the text: Primary Graphics Adapter Select a primary VGA. VT-d Intel® Virtualization Technology for Directed I/O helps your virtual machine
monitor better utilize hardware by improving application compatibility and
reliability, and providing additional levels of manageability, security, isolation, and
I/O performance. PCIE2 Link Speed Select the link speed for PCIE2. and so on ...... In the Z97M manual there is NO VT-D support in textform visible. On the Picture no Option to Enable/Disable/Auto or something: Primary Graphics Adapter Select a primary VGA. PCIE2 Link Speed Select the link speed for PCIE2. ..... But when you take a closer look at the UEFI Pictures in both manuals ( wich i didnt ) then there is a big difference! Z97X mainboard VT-d Capabilty Supported ---------------- other options Z97M mainboard VT-d Capabilty Unsupported ---------------- other options And thats because there is a CPU in this (virtual?) Z97M system wich doesnt support VT-D The mainboard checks for the support and shows the status "Supported/Unsupported" and only when it is supported it shows the option to Enable/Disable VT-D Thats it! And ofc it has to be like that, cause if the mainboard would NOT support VT-D, why check and show the status of the VT-D capability of the CPU? So for me nearly everything is clear, cause my board supports vt-d by 99% :D I only believe this by 100% when i see it on my own system running :D :D
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