Do I still keep my cards with the modded timings from Polaris?
I've seen some YouTube Videos that say you can restore the cards original vbios since AMT takes care of on the fly memory timings / straps... I suppose this is a manual effort though right? So I probably should just keep my modded vbios.
UPDATE:
I kept my cards with the timings from Polaris one click and set the REF setting to 90 like you said and let it rip!!
Total mh/s is between 257-258 which is 2 more than Claymore!!!
It is rare, but early on in the command line I was seeing blue gpu lines with a really low mh/s because one to three cards were at 0.000 mh/s, but then they recovered.... Is this something that will keep happening? I haven't seen it happen since, but have only been monitoring for 10 minutes. If it does keep happening, do I leave it as is or would you recommend I feed these cards an extra mV?
I am currently running:
1170 / 850
2150 / 850
I am thinking upping to 2200 with Phoenix Miner will make a difference and possibly take me up another 2 mh/s, unlike with Claymore.
Do it in increments of 5 regarding memory, same goes for core. Keep the voltage same (1175/2155/850).
1180 for core should be sweet spot if you cards can handle on 850mV (most of them should) like Metroid said don't push them all the way up to 2200 (you will gain very little if it even works)
Also don't know in what environment you placed your rig but try to keep it @ 60C
As for the timing the PBE has a decent timing for Micron no need to use straps on the fly, but you can play with other settings in AMT but before that I highly recommend to read couple of threads here regarding GDDR5 memory (seriously don't change the value in AMT unless you know what you are doing cause you can brick your cards!)