Id love to but i get this error when i attach the rom:"AJAX response unable to be parsed as valid JSON object. "Originally Posted by gupsterg
No worries on info share.
I usually increased TDC as a % of what I increased TDP & MPDL, as highlighted in OP section How to edit PowerLimit . On Hawaii the values I found in an updated ROM for my card via Sapphire support service were ample for 1150MHz GPU with DPM 7 VID 1.325V, so VDDC was lower than that when GPU loaded as LLC/slope was stock. I never had need for higher so never tried. Several members have used PT roms TDP/MPDL/TDC (ie 999 for all 3), even if you use those values the "protection" features of IR3567B should kick (ie OCP, unless modified from stock).
VMAX at 66h will limit voltage at 1.48125V, so closer to 1.5V than 1.4V.
So lets say register 33 has data value 74h. Take 74h and convert to binary, 0111 0100 . Count the bits from right starting at 0, so bits [4:0] is 1 0100, convert to dec = 20, 20 x 2A = 40A. AFAIK on reference PCB out of the rear 6 phases only 5 are used by loop 1 for GPU (see image in OP How to edit PowerLimit) so basically 40A x 5 = 300A is OCP limit loop 1. Bits [7:5] are 011, convert to dec = 3, so OVP is +325mV. AFAIK OVP is relative to VID, so for example say GPU is requesting VID of 1.3V then IR3567B will allow a swing up of +325mV = 1.3325V, if I was meddling with LLC/slope I'd probably lower OVP to keep overshoot in control if you get what I mean.
I've lowered OCP in stages on my Fury X, this was handy to gauge roughly what IR3567B is seeing as monitor amps. Stock is 240A on my card, 204A resulted in card cutting out as soon as 3DM FSE loaded, 216A has been ample for all gaming/benching @ upto 1440P and done lot's of runs of [email protected] at 48hrs+.
I'm pretty sure you've latched on to wrong hex values. Any chance you can attach ROM to post so can check for you?