Gigabyte X670E Aorus Xtreme Vcore regulation test results (Patreon)

All measurements are taken with a Rigol DS1054Z unlocked to 100MHz bandwidth.

Ultra Extreme LLC is the absolute worst thing I've measured on an AM5 motherboard so far with 180mv of undershoot. It's so bad in fact that I was struggling to get a measurement before the CPU crashed due to the undershoot.

Extreme LLC is absolutely atrocious with 150mv of undershoot

Turbo LLC is as bad as Extreme LLC with 150mv of undershoot

High LLC also sucks with 120mv of undershoot

Medium LLC also sucks with 110mv of undershoot

Low LLC also sucks with 100mv of undershoot

Standard LLC is kinda ok with 70mv of undershoot (A good result would be around 20-50mv of undershoot depending on the platform)

Normal LLC is the same as Standard LLC

Auto LLC is the same as Standard LLC

I've contacted Gigabyte about maybe making the load line slopes less agressive to try reduce the undershoot. I think that if standard LLC was drooping by around 120mv instead of just 65mv it should be possible to not undershoot by more than 50mv.

Since this testing was done with linpack here's the memory configuration:

Linpack Xtreme V1.1.5 dataset = 10GB target SVI3 TFN Vcore = 1.11 +/- 5mv CPU frequency = 4.8GHz ALL core FCLK = 2GHz RAM = 6Gbps 2x 16GB SR Hynix 16Gb M-die tCL 32 tRCD 39 tRP 39 tRAS 30 tRC 68 tWR 48 tRFC 777 tRFC2 333 tRFCpb 233 tRTP 8 tRRDL 6 tRDDS 4 tFAW 20 tWTRL 16 tWTRS 6 tRRSCL 8 tRRSC 1 tWWSCL 8 tWWSC 1 tWRRD auto tRDWR auto

The CPU should be getting around 800Gflops with these settings.

The motherboard was provided for testing by Gigabyte