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X99 Extreme4: MTRR errors after S4 sleep

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Gary74763 View Drop Down
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    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)
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ASRock_TSD View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ASRock_TSD Quote  Post ReplyReply Direct Link To This Post 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
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Gary74763 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gary74763 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Aug 2016 at 2:36am
Yes, that fixed the problem. Thank you very much!
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