ASRock Forums : extreme 4 / z97x killer and usb 3.1/c https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 18 Jun 2026 04:15:36 +0000 Sun, 12 Jul 2015 19:01:38 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=398 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[extreme 4 / z97x killer and usb 3.1/c : First, Thank you very much for...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1821&title=extreme-4-z97x-killer-and-usb-3-1-c#1821 Author: hellazari
Subject: 398
Posted: 12 Jul 2015 at 7:01pm

First, Thank you very much for all your help!

Dont know why I wrote 0.8, I geuss wanted to write 8Gbit.

Thanks again!
]]> Sun, 12 Jul 2015 19:01:38 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1821&title=extreme-4-z97x-killer-and-usb-3-1-c#1821 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : hellazari wrote:yes, thats...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1820&title=extreme-4-z97x-killer-and-usb-3-1-c#1820 Author: parsec
Subject: 398
Posted: 12 Jul 2015 at 1:30pm

Originally posted by hellazari hellazari wrote:

yes, thats what I thought, thanks for clearing that out.

but what about the extreme 6 board?

he has a pcie 2.0 x16 slot which runs at x2 and from my understanding this slot is not affecting the 2 pcie 3.0 x16 slots speed.

can i fit the USB 3.1 card into the pcie 2.0 x16 slot and the GPU will still run at X16 speed? 
if yes, pcie 2.0 at x2 speed is 0.8Gbit speed so this slot will bottleneck the card  I guess.


Again you are correct.

The PCIe 2.0 x16 slot (x2 lanes) is provided by the Z97 chipset, not the CPU. So using that slot will not use any of the PCIe 3.0 lanes, and all will be available to the video card(s).

Another thing to know is the exact specs of the USB 3.1 card, which can be seen here:

http://www.asrock.com/mb/spec/card.asp?Model=USB%203.1/A%2bC

Note that this card is physically x4, but is x2 electrically, so uses only two lanes.

I don't know why you said PCIe 2.0 x2 speed is 0.8Gbits, since one PCIe 2.0 lane is supposed to be 4Gbit/s max effective transfer rate, taking into account overhead.

The card will be slightly bottlenecked when used in a PCIe 2.0 lane slot, since that would not provide the 10Gbit/s (or more) speed that two PCIe 3.0 lanes would provide.
]]> Sun, 12 Jul 2015 13:30:41 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1820&title=extreme-4-z97x-killer-and-usb-3-1-c#1820 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : thats mostly right, but not always,...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1806&title=extreme-4-z97x-killer-and-usb-3-1-c#1806 Author: hellazari
Subject: 398
Posted: 12 Jul 2015 at 2:06am

thats mostly right, but not always, on some games it has big impacts even on gtx 980, which im planning to get, as you can see here:
http://www.techpowerup.com/reviews/NVIDIA/GTX_980_PCI-Express_Scaling/15.html

anyway im more worried about SLI. 

do you have info about what i asked regarding the extreme 6?


Edited by hellazari - 12 Jul 2015 at 2:07am]]> Sun, 12 Jul 2015 02:06:40 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1806&title=extreme-4-z97x-killer-and-usb-3-1-c#1806 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : At present, there are no GPUs...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1805&title=extreme-4-z97x-killer-and-usb-3-1-c#1805 Author: Xaltar
Subject: 398
Posted: 12 Jul 2015 at 1:49am

At present, there are no GPUs that can fully saturate PCIE 3.0 x8, at least that is what benchmarks are showing. I think the closest to doing this is the Titan Z. PCIE 3.0 x8 is more or less = to PCIE 2.0 x16 in bandwidth. ]]> Sun, 12 Jul 2015 01:49:01 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1805&title=extreme-4-z97x-killer-and-usb-3-1-c#1805 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : yes, thats what I thought, thanks...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1801&title=extreme-4-z97x-killer-and-usb-3-1-c#1801 Author: hellazari
Subject: 398
Posted: 12 Jul 2015 at 12:46am

yes, thats what I thought, thanks for clearing that out.

but what about the extreme 6 board?

he has a pcie 2.0 x16 slot which runs at x2 and from my understanding this slot is not affecting the 2 pcie 3.0 x16 slots speed.

can i fit the USB 3.1 card into the pcie 2.0 x16 slot and the GPU will still run at X16 speed? 
if yes, pcie 2.0 at x2 speed is 0.8Gbit speed so this slot will bottleneck the card  I guess.
]]> Sun, 12 Jul 2015 00:46:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1801&title=extreme-4-z97x-killer-and-usb-3-1-c#1801 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : Yes you are right about both situations.All...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1800&title=extreme-4-z97x-killer-and-usb-3-1-c#1800 Author: parsec
Subject: 398
Posted: 12 Jul 2015 at 12:22am

Yes you are right about both situations.

All the socket 1150 processors you could use with those boards have 16 PCIe 3.0 lanes. That is a limitation we can blame on Intel. Angry

So strictly speaking it's not really the use of more than one PCIe 3.0 x16 slot that limits a single video card to x8 (although the result is the same), but the amount of PCIe 3.0 lanes that are available.

Regardless, your descriptions are just as accurate about the final results.

Most gamers say that running a single video card at PCIe 3.0 x8 does not reduce performance much if at all. The SLI situation is not the same.
]]> Sun, 12 Jul 2015 00:22:20 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1800&title=extreme-4-z97x-killer-and-usb-3-1-c#1800 <![CDATA[extreme 4 / z97x killer and usb 3.1/c : just small question to see if...]]> https://forum.asrock.com/forum_posts.asp?TID=398&PID=1798&title=extreme-4-z97x-killer-and-usb-3-1-c#1798 Author: hellazari
Subject: 398
Posted: 11 Jul 2015 at 8:03pm

just small question to see if i get it right,

if i get the extreme 4 / z97x killer which bundled with a pcie x4 card with usb 3.1 and usb c port, that will mean that my gpu will run forever at x8 because this card is plugged into a pciex16 slot?

and what about sli? the gpu's will run at X8 and X4 instead of X8 and X8 because all the 3 pciex16 slots are used?

will be glad for some clarification ,

thanks!
]]> Sat, 11 Jul 2015 20:03:16 +0000 https://forum.asrock.com/forum_posts.asp?TID=398&PID=1798&title=extreme-4-z97x-killer-and-usb-3-1-c#1798