ASRock Forums : X99 Extreme4: MTRR errors after S4 sleep https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 21 Jun 2026 11:24:03 +0000 Fri, 12 Aug 2016 02:36:02 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=3180 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[X99 Extreme4: MTRR errors after S4 sleep : Yes, that fixed the problem. Thank...]]> https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15788&title=x99-extreme4-mtrr-errors-after-s4-sleep#15788 Author: Gary74763
Subject: 3180
Posted: 12 Aug 2016 at 2:36am

Yes, that fixed the problem. Thank you very much!]]> Fri, 12 Aug 2016 02:36:02 +0000 https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15788&title=x99-extreme4-mtrr-errors-after-s4-sleep#15788 <![CDATA[X99 Extreme4: MTRR errors after S4 sleep : Dear customer,Greetings, this...]]> https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15782&title=x99-extreme4-mtrr-errors-after-s4-sleep#15782 Author: ASRock_TSD
Subject: 3180
Posted: 11 Aug 2016 at 7:29pm

Dear customer,
Greetings, this is ASRock Technical Support Department.
 

Regarding your case, please use Instant Flash function to flash the BIOS to L3.51 as the link:
https://mega.nz/#!0hsGxSrK!IyhXwDfpGQX89LkBfmk0z63dFnjfHQm_k9mlbaVBvsc

Instant Flash: http://www.asrock.com.tw/support/BIOSUI.asp?cat=BIOS8 

Thank you for your patience.
If any, please feel free to contact us!


Kindest Regards,
ASRock TSD 



Edited by ASRock_TSD - 11 Aug 2016 at 7:32pm]]> Thu, 11 Aug 2016 19:29:20 +0000 https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15782&title=x99-extreme4-mtrr-errors-after-s4-sleep#15782 <![CDATA[X99 Extreme4: MTRR errors after S4 sleep : I just assembled a new PC. It...]]> https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15551&title=x99-extreme4-mtrr-errors-after-s4-sleep#15551 Author: Gary74763
Subject: 3180
Posted: 04 Aug 2016 at 12:45am

I just assembled a new PC. It seems to be working well, except that whenever it wakes from sleep (S4), the Windows Event Viewer shows an Event 137 error, "The system firmware has changed the processor's memory type range registers (MTRRs) across a sleep state transition (S4). This can result in reduced resume performance".

I have a clean install of Windows 10 Pro x64, latest updates installed, latest drivers installed from ASRock. BIOS settings are all UEFI defaults, which includes memory XMP profile at 2400--no manual tweaking. (I also tried the memory JEDEC profile at 2133, no difference. I tried disabling the fast-boot option in the memory settings; also no difference.) There are no tuning apps installed.

I've run memtest86 for hours with no errors found.

Any suggestions would be appreciated.

ASRock X99 Extreme4 (BIOS 3.40)
i7-6800K
Crucial Ballistix Sport DDR4-2400 4x8GB BLS4CBG4D240FSB
Crucial BX200 SSD 480GB (firmware MU02)
]]> Thu, 04 Aug 2016 00:45:42 +0000 https://forum.asrock.com/forum_posts.asp?TID=3180&PID=15551&title=x99-extreme4-mtrr-errors-after-s4-sleep#15551