PC Processors

[roupa_de_trapo]

After updating the BIOS to AGESA 1.0.8.0, I did not get stability in my memories at 6400MHz or 6200MHz. After many tests I managed to manually stabilize it at 6000MHz, as shown in the photo. Unable to activate XMP profile with stability. I noticed that the electrical voltages for the Memory Controller are quite exaggerated as the DDR5 voltage rises to the point that the machine shuts down during stability tests, I had to manually intervene with this too.

It's important to note that I disabled the SoC overclocking option.

Spoiler

DDR5 6400@6000MHzphoto 01photo 02photo 03photo 04photo 05photo 06photo 07photo 08photo 09photo 010photo 011photo 012photo 013photo 014photo 015

I came back with the version that is stable for me, AGESA 1.0.0.7a. I did not obtain stability with the new AGESA 1.0.8.0, on the contrary, regardless of my optimization attempts, the memories demonstrated instability at some point, therefore, artifacts appeared within the BIOS or corruption of the Windows 11 kernel.

the images below are from AGESA 1.0.0.7a. I note that there are settings in this version where certain parameters return to automatic mode, no matter how much I try to leave it as [enable].

In the performance tests that I was able to run with both versions, I observed that the old one is also the best performing in everything.

It's important to note that I disabled the SoC overclocking option.

cachememZenTimings_AGESA1.0.0.7aAI TWEAKER 02AI TWEAKER 03AMD CBSAMD CBS1AUDIO CONFIGURATIONCORE FLEX ALGORITHMDDR ADDRESSING OPTIONSDDR BUS CONFIGURATIONDDR MEMORY FEATURESvDDR MEMORY MBISTDDR POWER OPTIONSDDR SECURITYDDR TIMING CONTROL 01DDR TIMING CONTROL 02DDR TIMING CONTROL 03DDR TIMING CONTROL 04DDR TIMING CONTROL 05DDR TRAININGDF COMMON OPTIONSDIGI PLUS VRMNBIO COMMON OPTIONSPREFETCH SETTINGSSMU COMMON OPTIONSSMU COMMON OPTIONS1TWEAKERS PARADISE

[roupa_de_trapo]

There is no solution after updating to AGESA 1.0.8.0 and, at most, leaving it in the standard 4800MHz JEDEC mode. There is no way to go back to previous versions.

DDR5 DEFAULT 4800MHz

DDR5 NITRO

[roupa_de_trapo]

Everything indicates that there is an instability with the Precision Boost Overdrive settings and these memories I have from GeIL. I also discovered that this memory is a markdown with a more aggressive XMP, in fact GeIL does not speak of this model as 6400MTs or even as 6000MTs, but only 5600MTs. There is an EXPO version with very different timings. To be able to operate with some stability, I need to deactivate PBO and set timings close to what is supported by the manufacturer's EXPO profile.

GeIL Polaris

DDR5 SPECIFICATION XMP 

DDR5 5600MTs

VoltagesPREFETCHDDR MEMORY FEATURES CONTEXT RESTORE