Monday, June 8th 2020
HWInfo's Power Reporting Deviation Sensor Reveals How Motherboard Makers are Cheating Ryzen CPUs
HWInfo with its latest version, introduced a new sensor that reveals whether your motherboard is tricking your 3rd Gen Ryzen processor into thinking its power consumption is within normal parameters, while in fact sending more power to it, to sustain boost clocks better, or support overclocking. These enhancements take advantage of the fact that an AMD Ryzen processor relies on the motherboard's CPU VRM controller for power-consumption telemetry, so the processor's power-management co-processor can accordingly adjust boost frequencies to stay within AMD's power-consumption limits.
Motherboard vendors have allegedly figured out a way to trick the processor into thinking its power consumption is within normal parameters (when it's not), and HWInfo's developer has determined a way to calculate the deviation between power consumption value reported to the CPU, against that measured by the VRM controller. This sensor is called "Power Reporting Deviation," and is an integer percentage value. 95-105% deviation can be interpreted as normal behavior, where the motherboard is respecting AMD specs. Anything outside this range could indicate a motherboard-level power enhancement designed to maximize performance of even processors that users prefer to run at stock speeds, reducing their lifespan. Overclocking legend "The Stilt" wrote a detailed essay on Power Reporting Deviation, which can be read here.
DOWNLOAD: HWInfo v6.27-4185 Beta
Motherboard vendors have allegedly figured out a way to trick the processor into thinking its power consumption is within normal parameters (when it's not), and HWInfo's developer has determined a way to calculate the deviation between power consumption value reported to the CPU, against that measured by the VRM controller. This sensor is called "Power Reporting Deviation," and is an integer percentage value. 95-105% deviation can be interpreted as normal behavior, where the motherboard is respecting AMD specs. Anything outside this range could indicate a motherboard-level power enhancement designed to maximize performance of even processors that users prefer to run at stock speeds, reducing their lifespan. Overclocking legend "The Stilt" wrote a detailed essay on Power Reporting Deviation, which can be read here.
DOWNLOAD: HWInfo v6.27-4185 Beta
32 Comments on HWInfo's Power Reporting Deviation Sensor Reveals How Motherboard Makers are Cheating Ryzen CPUs
no sign of it, I checked in settings , it is not hidden or unmonitored, it isn't there?.
two motherboard bios 3004,3101 tested, no sign.
Most users simply don't and will not do such a thing. IMO, testing should be done setting optimized defaults and XMP/DOCP. This is the way you get 'out of box' performance as everyone else would. What people tweak and such is impossible to get consistent.
Disabling MCE ,pbo etc, that's not how they're used.
All benching should be how they're used, All , everywhere (I'll adopt a say no more on this here in in Tpu)
I would however like. This information put into reviews too though, as a heads up so to speak.