Incorrect ram capacity reported - v7.50.720

[Xatinni]

 

Incorrect ram capacity reported - v7.50.720, intimately moves to alternate slots, possibly between reboots, but not confirmed 
Motherboard:
      CPU Type                                          OctalCore AMD Ryzen 7 7800X3D, 4800 MHz (48 x 100)
      Motherboard Name                                  Asus Prime X870-P WiFi  (4 PCI-E x16, 4 M.2, 4 DDR5 DIMM, Audio, Video, 2.5GbE LAN, WiFi)
      Motherboard Chipset                               AMD X870, AMD K19.6 FCH, AMD K19.6 IMC
      System Memory                                     64672 MB
      DIMM1: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM2: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM3: Corsair CMH32GX5M2B6000Z30                 2 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM4: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
     

[Fiery]

1 hour ago, Xatinni said:

Incorrect ram capacity reported - v7.50.720, intimately moves to alternate slots, possibly between reboots, but not confirmed 
Motherboard:
      CPU Type                                          OctalCore AMD Ryzen 7 7800X3D, 4800 MHz (48 x 100)
      Motherboard Name                                  Asus Prime X870-P WiFi  (4 PCI-E x16, 4 M.2, 4 DDR5 DIMM, Audio, Video, 2.5GbE LAN, WiFi)
      Motherboard Chipset                               AMD X870, AMD K19.6 FCH, AMD K19.6 IMC
      System Memory                                     64672 MB
      DIMM1: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM2: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM3: Corsair CMH32GX5M2B6000Z30                 2 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
      DIMM4: Corsair CMH32GX5M2B6000Z30                 16 GB DDR5-4800 DDR5 SDRAM  (42-41-41-77 @ 2403 MHz)  (40-40-40-77 @ 2400 MHz)  (36-36-36-70 @ 2160 MHz)  (32-32-32-62 @ 1920 MHz)  (30-30-30-58 @ 1800 MHz)  (28-28-28-54 @ 1680 MHz)  (22-22-22-43 @ 1320 MHz)
     

In AIDA64 please press Ctrl+D --> Sensor Debug --> SMBus Dump (Full). Copy-paste the full results into this topic, or attach the results as a TXT file to your post.

Thanks,
Fiery

[Xatinni]

I've just started playing around with EXPO profiles, (post my initial bug report), I've just had to reset the bois, at the moment memory is reported correctly, I will update with the SMBus Dump (Full) if the issue persists... thank you for the prompt response. 

[Xatinni]

Reboot and the Issue reappeared

smbusdump_full.txt

[Fiery]

10 minutes ago, Xatinni said:

Reboot and the Issue reappeared

smbusdump_full.txt 72.06 kB · 0 downloads

Thank you.  Somehow SPD bank switching fails to work properly in your 3rd memory module.  Without proper bank switching it's not possible to detect DDR5 memory module details.

[Xatinni]

Thank you

I found a similar issue in the following post DDR5 Bank switch issue on ASUS Motherboards · Issue #110 · memtest86plus/memtest86plus 

I will create a bug report with Asus, thanks again

 

[Fiery]

41 minutes ago, Xatinni said:

Thank you

I found a similar issue in the following post DDR5 Bank switch issue on ASUS Motherboards · Issue #110 · memtest86plus/memtest86plus 

I will create a bug report with Asus, thanks again

I'm not quite sure the issue is with the motherboard.  As long as it's consistently the same memory module (the 3rd one out of four), it looks like more of an issue with the SPD chip that's on that single memory module that fails to switch the SPD bank.

[Xatinni]

Thanks for the guidance  @Fiery, after some research I now understand a little more about what the SPD chip does/reports, I moved the module to a new slot and the issue moves with the module. I will reach out to Corsair. As you said probably a faulty SPD chip, or the data was written to the chip incorrectly. thanks again for the assistance.