Originally Posted by BLUuuE
I also seem to be getting VDDC and VDDCI spikes. VDDCI spikes even happen on the stock BIOS, but I don't think they happen with VDDC. I think it's because I set the LLS to 0 which is causing the VDDC spikes.
vddci LLS for my 380 was independent of the vddc one, I have tested it whit the multimeter and couldn't be modified for my gpu. For your voltage controller is also independent, if fou don't have changed vddci LLS it is the stock value, and maybe you could change it.
Some polaris users also are seeing voltage spikes: https://www.overclock.net/forum/67-a...l#post27046025
as you can see in the link,
, did a mod to the VOI to set an Vmax and was working to aboid spikes.
I also see voltage spikes with LLS1, and also with stock bios and LLS3, but LLS0 is disabling the LLC so you could see more.
The think about the LLS is that hwinfo vddc readings seens to be wrong at least for ncp 81022 voltage controllers. Acording to my multimeter readings, LLS3 had a low vdroop of 10mv and hwinfo was reading 50mv vdroop; with LLS1 was increasing the volage with load but hwinfo was reading a 20mv vdroop.
But I don't know if this hwinfo reading error is the same for your voltage controller, and the only way to know it is to measure it with a multimeter, and is risky.
I take a look to your bios and your hwinfo vddci readings seems to be affected by the vddc
Offsets like you say, as you can see at the attached image.
But I have no idea if it is the real vddci or not, I have to suppose is not the vddci, because if not your bios is bad configured, and because VOI vddci values have not influence in hwinfo vddci readings.
I was confused because hwinfo vddci values are simirar at the ones of the VOI. And because of the Buildzoid 480 video.
Maybe the 480 is using a 6+1 config whit the vddci into the second loop, and your 380 is usung 5+1 with one of the core phases into the second loop, but no idea why.
But again, I can not know if it is vddci or not without a multimeter measure, and doing it is risky, so better to not to do it.
About the voltage peaks my new 580 nitro+ is getting peaks of 1.219v for the vddc, while the stock voltage is 1.15v from dpm 4 to 7, like you can see in the attached image. I have no idea if these readings are errors or what is happening, but of courese I am not going to use the multimeter to test the voltage.
Edited: Into the powerplay image the vddgfxoffsets are vddcoffsets and vddcoffsets vddgfxoffsets, sorry.