Thanks for chiming in.
I'm not sure specifically as to which tests. So I just RAN CB15 ~10 times, Prime95 with AVX for 30 minutes and pushed 220~watts through the 9900k with AIDA64FPU/CPU stability for ~15 minutes, the VCORE LED did not even blink.
This above testing was run at 5.2GHZ, RR47, 1.35V-1.40V Vcore
Peak temp 78c on an open bench - Chiller
Totally DARK heh.
Flashed BIOS from 1.03 to 103,1.04, 1.06 - Same behavior
Removed all power connectors from board - Same behavior
Switched to another Trident Z Bdie kit - Same behavior
Unfortunately I didn't have another 9 series intel cpu to test. I guess Ill order another 9900k and see what happens when it gets to my doorstep if still no vcore LED after that. I guess my next step is RMA Z390 Dark.
CPU shows no issues. CPU still Clocks to 5.4 @ 1.4v and passes CB15 just as before I noticed the vcore LED behavior.
To be clear. LED does not blink and is not dim. it is not lit as though no power however
DMM shows 3.33v on ram side of led and 1.96v on X side of LED -edge
the rest of the status leds show on DMM
2.54 on ram side and 0.00 on X side - edge
Edited to add that the dip in watts in image 2 is due to AIDA64Cache stability testing which I turned on and off during the stress test.
post edited by Zeddivile - 2019/04/28 22:40:20