Originally Posted by BLUuuE
I've been testing the effects of VDDCI on core stability and I can confirm keeping it equal to VDDC helps a lot.
1150MHz core 1500MHz 1138mV VDDC
VDDCI while running Heaven:
1000mV = crash instantly
1050mV = artifact and crash
1138mV = pass
I bought an RX 570 4GB Nitro+ for very cheap, so I won't be messing around with my 380 anymore.
The Nitro+ uses a NCP81022 voltage controller I think, so there won't be as much control compared to the IR3567B. It'll be interesting to see how well it overclocks as well as the VRM temperatures (if it has sensors for them).
I'll be lurking around in the Polaris BIOS Editing thread now.
Thank you very much for your help thus far.
I can't seem to change DPM3 memory clock without BSOD. Even setting it 1500MHz will BSOD even though 1600MHz is stable.
I don't think this happened before, so maybe it's something with the new drivers. I'll try an older driver and see if it works.
You are welcome.
As I said I think that hwinfo vddci is not the vddci.
I have tested a 580 nitro+ 4gb and now I am using a xfx 580 gts 8gb with the NCP81022 voltage controller, and it has no VRM temperature monitoring. With the nitro+ one vddci is not seen with hwinfo, with the gts you can see the vddci, but voltage values seems like using an voltage offset that I don't know if its real.
Also afterburner last beta voltage control for them is not working, and after using it is breaking voltage contro for trixx, and riva tuner OSD, so you have to restart the pc. I will heave to test an older versin of it, but I don't know what version to use.
The most weirt thing I see with both is that trying to get an I2C dump with aida 64, an intermittent green screen appears and I have to restart the PC.
I had returned the 580 nitro+ because some times it was getting artifacts and a blue screen after windows login.
I think I am going to return the xfx 580 gts aswell, and try to buy a gpu with a IR3567B controller.
I don't had tested to OC memory to the 380 with 18.12.3 drivers, I was using 22.214.171.124 because I was getting better firestrike scores with it.
Hope you will not have any problem with your 570 nitro+.