ASRock Forums : Max_payload setting in BIOS https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 21 Jun 2026 06:20:23 +0000 Sat, 11 Jul 2015 17:49:01 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=384 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Max_payload setting in BIOS : Pages 546 - 553Edited by odiebugs...]]> https://forum.asrock.com/forum_posts.asp?TID=384&PID=1796&title=max-payload-setting-in-bios#1796 Author: odiebugs
Subject: 384
Posted: 11 Jul 2015 at 5:49pm

Pages 546 - 553

Edited by odiebugs - 11 Jul 2015 at 5:51pm]]> Sat, 11 Jul 2015 17:49:01 +0000 https://forum.asrock.com/forum_posts.asp?TID=384&PID=1796&title=max-payload-setting-in-bios#1796 <![CDATA[Max_payload setting in BIOS : futurehitech wrote:Hi,In our...]]> https://forum.asrock.com/forum_posts.asp?TID=384&PID=1793&title=max-payload-setting-in-bios#1793 Author: parsec
Subject: 384
Posted: 11 Jul 2015 at 2:12pm

Originally posted by futurehitech futurehitech wrote:

Hi,

In our application, we would need to change the max_payload setting in BIOS for the PCIe bus. I understand that the value can range from 128 to 4096 bytes. we are interested in setting it to 4096 Bytes. However, I do not see such an option in BIOS, but from testing, we notice the MB is taking 256 Byte as the default/max value. 

Could you let me know what is the roadmap on enabling the max_payload for PCIe bus and what is the max number? 

Thanks,

FHT 

I've never seen an option in a contemporary ASRock board's BIOS/UEFI to set the PCIe payload size. All I can suggest is checking the PCIe 3.0 specification, which discusses various payload sizes and in general where they are set:

http://komposter.com.ua/documents/PCI_Express_Base_Specification_Revision_3.0.pdf
]]> Sat, 11 Jul 2015 14:12:30 +0000 https://forum.asrock.com/forum_posts.asp?TID=384&PID=1793&title=max-payload-setting-in-bios#1793 <![CDATA[Max_payload setting in BIOS : Welcome to the board.You probably...]]> https://forum.asrock.com/forum_posts.asp?TID=384&PID=1788&title=max-payload-setting-in-bios#1788 Author: odiebugs
Subject: 384
Posted: 11 Jul 2015 at 10:59am

Welcome to the board. Smile

You probably won't see ( TLP ) Max payload,  anymore. Not after the LGA 1366.  That was the day's when there was a north and south bridge. Now with the north on the CPU and a South- chipset,  and much higher lanes, they are more likely set to max default as there is no reason to limit them with what they can transfer now.  Before,   the root port could be flooded with data and cause crashing.

This is my understanding, you could contact support and see if it was possible to add this back in a modded BIOS for you, that's all I can tell you.
]]> Sat, 11 Jul 2015 10:59:40 +0000 https://forum.asrock.com/forum_posts.asp?TID=384&PID=1788&title=max-payload-setting-in-bios#1788 <![CDATA[Max_payload setting in BIOS : Hi,In our application, we would...]]> https://forum.asrock.com/forum_posts.asp?TID=384&PID=1784&title=max-payload-setting-in-bios#1784 Author: futurehitech
Subject: 384
Posted: 11 Jul 2015 at 4:54am

Hi,

In our application, we would need to change the max_payload setting in BIOS for the PCIe bus. I understand that the value can range from 128 to 4096 bytes. we are interested in setting it to 4096 Bytes. However, I do not see such an option in BIOS, but from testing, we notice the MB is taking 256 Byte as the default/max value. 

Could you let me know what is the roadmap on enabling the max_payload for PCIe bus and what is the max number? 

Thanks,

FHT 
]]> Sat, 11 Jul 2015 04:54:28 +0000 https://forum.asrock.com/forum_posts.asp?TID=384&PID=1784&title=max-payload-setting-in-bios#1784