Question EXPO causes Windows 11 to BlueScreen on boot ?

[OwiHH]

I Build a AM5 PC and run into problems with the EXPO Profile for my RAM.
It happend a few times now that WIN 11 not booting up with checksum errors that kernel efiload is corrupt.
Recovery does not help.

The last time i switched to EXPO was Monday - PC was running fine until today - not booting up - no chance get it recoverd with USBflash WIn11
i simply turn EXPO off and WIN 11 boots up with no problems.

Im running 4x CMK32GX5M2D6000Z36

------------------
System Information
------------------
Time of this report: 2/15/2023, 09:48:13
Machine name: ZEN-9
Machine Id: {AC1086FF-0ACE-46E3-815C-3DDC0F02808A}
Operating System: Windows 11 Pro 64-bit (10.0, Build 22621) (22621.ni_release.220506-1250)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: X670 AORUS ELITE AX
BIOS: F6c (type: UEFI)
Processor: AMD Ryzen 9 7950X 16-Core Processor (32 CPUs), ~4.5GHz
Memory: 65536MB RAM
Available OS Memory: 65270MB RAM
Page File: 8118MB used, 61247MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Not Supported
DirectX Database Version: 1.4.4
DxDiag Version: 10.00.22621.0001 64bit Unicode

___

Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x50
Memory type DDR5
Module format UDIMM
Module Manufacturer(ID) Corsair (7F7F9E0000000000000000000000)
SDRAM Manufacturer (ID) Samsung (CE00000000000000000000000000)
Size 16384 MBytes
Max bandwidth DDR5-4800 (2400 MHz)
Channels 2
Part number CMK32GX5M2D6000Z36
Manufacturing date Week 47/Year 22
Nominal Voltage 1.10 Volts
EPP no
XMP no
AMP no
EXPO yes, rev. 1.0
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 22.0-23-23-43-65 @ 1333 MHz
JEDEC #2 28.0-28-28-54-82 @ 1666 MHz
JEDEC #3 30.0-30-30-58-88 @ 1800 MHz
JEDEC #4 32.0-33-33-62-95 @ 1933 MHz
JEDEC #5 36.0-37-37-70-106 @ 2166 MHz
JEDEC #6 40.0-40-40-77-117 @ 2400 MHz
JEDEC #7 42.0-40-40-77-117 @ 2400 MHz
EXPO profile
VDD Voltage 1.350 Volts
VDDQ Voltage 1.350 Volts
VPP Voltage 1.800 Volts
Min Cycle time 0.333 ns (3000 MHz)
Max CL 36.0
Min tRP 11.99 ns
Min tRCD 11.99 ns
Min tRAS 25.31 ns
Min tRFC 0.29 ns
EXPO timings table CL-tRCD-tRP-tRAS-tRC @ frequency
EXPO #1




------------------------
Disk & DVD/CD-ROM Drives
------------------------
Drive: C:
Free Space: 351.3 GB
Total Space: 476.2 GB
File System: NTFS
Model: Samsung SSD 970 EVO Plus 500GB

Drive: D:
Free Space: 775.3 GB
Total Space: 1000.0 GB
File System: NTFS
Model: Samsung SSD 970 EVO Plus 2TB

Drive: E:
Free Space: 790.7 GB
Total Space: 907.7 GB
File System: NTFS
Model: Samsung SSD 970 EVO Plus 2TB


____
---------------
Diagnostics
---------------

Windows Error Reporting:
+++ WER0 +++:
Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1: c000021a
P2: ffffdd831fbb7990
P3: ffffffffc0000428
P4: 0
P5: 19d43ef0000
P6: 10_0_22621
P7: 0_0
P8: 256_1
P9:
P10:


+++ WER1 +++:
Fault bucket 1400457763456990971, type 5
Event Name: BEX64
Response: Not available
Cab Id: 0

Problem signature:
P1: dwm.exe
P2: 10.0.22621.608
P3: 8783b131
P4: StackHash_09b5
P5: 0.0.0.0
P6: 00000000
P7: PCH_7C_FROM_ntdll+0x000000000009F954
P8: c0000005
P9: 0000000000000008
P10:

....

+++ WER8 +++:
Fault bucket 1400457763456990971, type 5
Event Name: BEX64
Response: Not available
Cab Id: 0

Problem signature:
P1: dwm.exe
P2: 10.0.22621.608
P3: 8783b131
P4: StackHash_09b5
P5: 0.0.0.0
P6: 00000000
P7: PCH_7C_FROM_ntdll+0x000000000009F954
P8: c0000005
P9: 0000000000000008
P10:


+++ WER9 +++:
Fault bucket , type 0
Event Name: BlueScreen
Response: Not available
Cab Id: 0

Problem signature:
P1: c000021a
P2: ffffdd831fbb7990
P3: ffffffffc0000428
P4: 0
P5: 19d43ef0000
P6: 10_0_22621
P7: 0_0
P8: 256_1
P9:
P10:

 

[Lutfij]

Can you manually input the advertised timings, frequency and voltage into BIOS and see if the issue persists? You can up the voltage a little as opposed to what's stated on the sticker of the ram kit. As for your rams, might want to see if using two sticks in slots A2 and B2 produces the same issue when under EXPO. As stated on another thread just a little while ago, I can't seem to access Gigabyte's support site for your motherboard to verify what your latest BIOS version is as well as the manual.

Perhaps try and clear the CMOS and see if the issue persists. Also, can you check and see what the PCB version(revision number) is for both ram kits?

 

[OwiHH]

mb_manual_x670-ae-gamingx-ax_e_v2.pdf (gigabyte.com)
X670 AORUS ELITE AX (rev. 1.0) Support | Motherboard - GIGABYTE U.S.A.
X670 AORUS ELITE AX (rev. 1.0) Support | Motherboard - GIGABYTE U.S.A.

 

[Unolocogringo]

Your memory part numbers are for 2x16gb kits.
You are running 2 kits with a total of 4 sticks.
Some times it works, other times it doesn't.
If you want to run four sticks, always buy a 4 stick set( All in one package) that are a matched set that is guaranteed to run @ advertised speed together.
Mixing two kits is always a gamble.

How To - Troubleshooting problems with PC memory (RAM) and XMP profile configurations

In the beginning, there was......BIOS Before you go ANY further, go to the manufacturer product page for your specific motherboard model AND revision. Revision is an important aspect because for any given motherboard there may be more than one version of that model which will be identified...

forums.tomshardware.com

You might get stability by upping voltages slightly and/or manually inputting timings.
Or you may just have to run them at a lower speed.