Originally Posted by demonknight9
Thanks Falkentyne, I didn't touch any other settings apart from Multicore Enhancements to off, BCLK to 100.00 and CPU Internal AC/DC Load Line to Power Saving. I assume the VR settings are all on auto if that is default.
I don't want to overclock, far from it. The temps are just too high. I want 4.7GHz Ann all cores and for the CPU to scale down when not doing anything.
This is the only setting which works in the way I want it to. I checked aida64 and all the temps are well behaved, including the VRM's which sit at a comfortable 65c under load.
I get the same score in Cinebench R20 as if this setting was on auto. The only difference I can see is that the voltages have a celling of 1.28v and the temps dont go above 75c.
So what you are telling me is that this setting does to something as long as I leave the default values on AC/DC Loadline in VR settings?
Can you please link me to your 9900k thread?
Thanks again for replying. I am trying to understand what the setting does and if there are any side effects by leaving it like this?
You really want my post?
Trust me your brain is going to turn to complete spaghetti after reading it. These things happen when you give Chess masters a computer to overclock.
(Only thing I left out is SVID Offset, which applies a boost to AC Loadline's mOhm boost at load while not affecting it at idle, which is for really poor CPU samples. I do not know if it can raise VID higher than 1.520v however).
Now that I'm on my desktop I have the mOhm values.
CPU Internal AC/DC loadline (AC / DC raw values-> mOhms)
Extreme: 210/210 (2.1 mOhms / 2.1 mOhms)
Turbo: 160/160 (1.6 mOhms)
Performance: 130/130 (1.3 mOhms)
Power Saving: 40/130 (0.4 mohms/1.3 mOhms)
Auto: 1.0/1.3 mOhms (4.7 ghz), 1.3/1.3 mOhms (5 ghz).
Note that DC loadline 1.3 mOhms affects VID the same as Loadline Calibration=Low affects VR VOUT/VCC_Sense (Standard/Normal/Auto=1.6 mOhms). Not sure why Gigabyte even bothers changing the DC Loadline value anyway.
CPU Vcore Loadline Calibration (8 cores)--also known as VRM Loadline
Standard/Auto/Normal: 1.6 mOhms
Low: 1.3 mOhms
Medium: 1.0 mOHms
High: 0.8 mOhms
Turbo: 0.4 mOhms
Extreme: 0.2 mOhms (estimated)
Ultra Extreme: 0 mOhms
SVID Offset allows the AC loadline to boost the VRM Supply voltage / Supply VID (before DC loadline droop bias) ABOVE 1.52v, up to 200mv higher.
With SVID offset disabled, AC Loadline can not boost CPU supply voltage via VID higher than 1.52v.
SVID offset enabled, AC Loadline =1.6 mOhms, DC Loadline=0.01 mOhms (This stops VID from dropping below AC Loadline VID target)
Hint: If i tried small FFT AVX with this setting, VR VOUT would be 1.32v, Amps would be 212 (!!) amps, Watts would be 260+ and temps would be 105C in two seconds flat.
I calculated that to a target VRM voltage of 1.665v before vdroop!