I have the RX 480 Nitro+ (1342 Mhz Edition) This card has been driving me absolutely insane, as I cant get it to hold any kind of stable overclock.
At bare stock settings.
Core Clock: 1342 Mhz
Core Volts: 1150 mv
Mem Clock: 2000 Mhz
Idle Temps: Mid 40's
Load Temps: High 60's
At bare stock with change of thermal paste (Changed to Thermal Grizzly Kryonaut)
Core Clock: 1342 Mhz
Core Volts: 1150 mv
Mem Clock: 2000 Mhz
Idle Temps: Low 40's
Load Temps: Low 60's
Next I wanted to see how low i could get the core voltage at stock settings
Core Clock: 1342 Mhz
Core Volts: 1129 mv (-21)
Mem Clock: 2000 Mhz
Idle Temps: Low 40's
Load Temps: High 50's/Low 60's
Now I start off with a mild overclock. (this is the only one that is stable)
Core Clock: 1375 Mhz
Core Volts: 1150 mv
Mem Clock: 2000 Mhz
Idle Temps: Low 40's
Load Temps: Low 60's
The problems start when the system uses anything above the stock vcore. 1375 is about the max i can manage to have stable on the stock 1150mv vcore. It might be able to use a little more (at my current 1375 settings it will sometimes stutter) but adding the minimum amount of vcore (+6), makes it unstable.
For any clocks that require additional vcore the result is the same, I get maybe about 30 seconds (I can get almost through the first pass of firestrike) and then the system freezes up, and has to be reset. It doesnt matter if im at 1400 and +20 or at 1475 and +100. It will seemingly run fine for ~30 seconds then freezes the system up.
Its possible that i got a turd chip, but I think there might be another issue with the card thats keeping me from hitting higher speeds. Any ideas are appreciated