Originally Posted by elmor
Can you put axes on the graph? Might make it easier to understand what you mean. Normally it's output voltage (actual, not set) on the y-axis and output current on the x-axis. Depending on your load-line setting, at a certain output current the voltage will be higher or lower. Load-line Calibration is a marketing term and "hides" a corresponding load-line value in mOhm (milliohm). A higher Load-line Calibration Level on Asus boards means a lower load-line value and less droop. The droop is calculated as Vdroop = Iout*loadline. For example 100A*0.5mOhm = 50mV below the set voltage.
Something around 20-50 Msps and 50-100 MHz bandwidth should work. More than 8-bit vertical resolution would also be good but it's expensive. The difficult part is not getting a scope it's getting good readings without noise.
All Maximus XI 4-DIMM boards should perform similarly in terms of memory speed. I'd recommend you to compare the QVLs, it should be indicative of its capability.
Aorus Z390 Xtreme
4333 MHz - 1x kit 4x8GB
4266 MHz - 1x kit 4x8GB
4133 MHz - 2x kit 4x8GB
4000 MHz - 9x kit 4x8GB
3866 Mhz - 7x kit 4x8GB, 9x kit 2x8GB
ROG Maximus XI Extreme
4400 MHz - 4x kit 4x8GB, 3x kit 2x8GB
4266 MHz - 11x kit 4x8GB
4133 MHz - 15x kit 4x8GB, 24x kit 2x8GB
4000 MHz - 16x kit 4x8GB, 1x kit 4x4GB, 25x kit 2x8GB, 1x kit 2x4GB
3866 MHz - 7x kit 4x8GB, 4x kit 4x4GB, 9x kit 2x8GB, 7x kit 2x4GB
While we're on the subject of loadline, just finished 2 tests using my entire morning (couldn't play any video games, sigh
Hopefully the Analog scope will help tell us whats going on with the voltage stability.
4.7 ghz, Ring x44
LLC5 (High LLC), Bios set: 1.230v, VR VOUT: 1.107v, FMA3 15K in place fixed prime95 (29.5 build 10): 2 hours stable. (max IOUT: 157 amps, 87C max). Any lower=random chance of a thread crashing in <2 hours
LLC6 (Turbo LLC),Bios set: 1.195v, VR VOUT: 1.131v, FMA3 15K in place fixed prime95 (29.5 build 10): 2 hours stable (max IOUT: 162 amps, 90C max). Any lower=random chance of a thread crashing in <2 hours
Attempting to use LLC6 (turbo) with bios : 1.170v (VR VOUT: 1.109v) results in threads 7/8 or 11/12 (or 7/8 and 11/12 at the same time!) crashing in less than 10 minutes
So Higher vdroop LLC needs 1.107v, while less vdroop needs 1.131v for the same stability, despite temps and power draw being hotter from the higher "average" target VR VOUT.
Has to be voltage fluctuations causing this. The oscilloscope test will get to the bottom of this.
(Most obvious will be LLC8. Attempting to even do LLC8 (Ultra Extreme) at 1.10v Bios set->1.10v VR VOUT, FMA3 15K fixed in place --> almost IMMEDIATE "Clock Watchdog Timeout" or WHEA Uncorrectable error).