The 12-19 firmware is great for the S3 'underperformer' as I call them. The units I have which barely push 440 with normal temps and a 2000w PSU with nothing else on it. Which is the only way I record any 'real' numbers. Changing the voltage in 12-19 does zip for me on the same units where it does have an effect on 10-24. But, the 12-19 seems to manage these units better. Maybe it is something I did in editing frequencies on the 10-24, not sure, but voltage no work for me and I have about the same hash.
10-24 firmware, well it is for everything else. I need an updated 10-24 version to include newer options and cgminer, but adjusting the vcore to the correct setting for the chosen freq does make a big difference and is especially noticeable in the S3+ units and some? S3 with DC2DC... I don't remember but you know what I mean.
The 10-24 firmware gives me overall higher, consistent hashrates because I am able to make adjustments to the freq and voltage to find the sweetest spot for that particular unit. I keep them clean, fans running, good power, no bs. I want the firmware to be the same
What I would love to see is someone who can look at both 10-24 and 1-9 and give us a hybrid with the good stuff. If anyone needs a unit to test with let me know
it is my understanding that the 12/19 firmware is the 10/24 firmware with the fixed reset button.. no other changes were made.
the newest one tho is completely rewritten.. it removes the auto voltage part and tweaks some other settings.. its made for those s3s that didnt come with the variable dc chips. this one performs really badly on my s3s.. i get X's and reboots.
I know this is what we have been told, but it is not true. There are other differences between these firmware versions. I cannot say from looking at the firmware what those differences are, but I can confidently say from trying both on several S3s and S3+ units.
If you want I can post numbers I've gathered from each unit running either version. It seems to me they made the change described with voltage and the "one style of hash board" as Dogie mentioned yesterday, but some change was made in 12-19 outside of the reset button.