Who is running at .75v?

At .75v 193mhz i get all x on first two rows of both chips at 193mhz
If i set a high timeout i get better ghs but xs still come just not as fast. Around 30-75ghs

How are you optimizing units some read .74 to .75 should they be more stable maybe remove some lead...

Mine is a jan or feb 2014 antminer s1 on the stamp on pcb are these different

I really want an extreme undervolt it was so stable overclocked. Should I go up to .8v

Also off topic i notice my fan on corsair 500 bronze doesnt spin anymore on the s1 since undervolting.  Is it because watts are so low or should I try another psu.  I believe I had same results on my gold psu with x's but fan spun on that psu.

Thanks for the excellent information
Blank or 0000 or 0725?  I think vdd disabled means all this is moot anyways but since i opt to keep my settings I wonder if I need to reset it to be fresh again.

This q is for people who have an s3 running good on latest fw. I have to underclock to 212 to stay under .01%

What do you do in voltage field

0109 out

what is 12.16 bug fixes

I emailed them about it and this is what I got...


I always check md5.  Please keep contacting them  I give up for now

sucks just as bad as 0103 with errors
you even have to reboot after updating config to have correct avg ghs value like last few updates...

try again  it might be better than 0103  i dont see what changed though still a lot of errors but so far just .01% and no x only 45min though

why wont someone post it
0108 just posted check it out at bitmain

hey thats pretty good if your running 0103 firmware i have .6% at 218mhz around 410ghs  only way to get no x or - on asics

new fw needs major work

let me get 1216 fw

upload 12.16 firmware for me

upload or pm me the 12.16 firmware 01.03 is absolutely terrible  hwe is .01+ compared to .0001 before

voltage doesnt seem to have much affect anymore on hwe like before

Make voltage changes
Power cycle psu
System-reboot from web interface
It keeps x's and hwe from popping up

Pm me link to beta firmware im having trouble finding it their email techs dont have access to it

Data gathered from bitmain emails

default value for S4 is 0725.

they also said s3 is 0760 or 0770 and s3+ is 0750

idk... hard to know without investigating firmware without custom settings

S3 is 441gh/s and S3+ is 453gh/s


Edit. (OCFREQ/REGFREQ)xAMPSxVOLTS×#chips=WATTS

It might be in cgminer file
Try ssh in
Then
cat /etc/config/cgminer
Thats where clock settings are

I will find file when I get home to see where voltage is stored.

What is default in october firmware and batch 1?

is the december firmware stable for us to run 0750 and 262.5 overclock or should I stick to october?  November was disregarded

firmware is same for s3 and s3+ to my knowledge

I also emailed bitmain and will post answer soon

We will figure it out but you've been very helpful. Thank you.  I will try the regvalue and see if it has a positive effect on hw errors.

For future reference I believe we still can use vi /etc/config/cgminer but theres no reason to as its in web interface.  Because that worked for me using vi when I changed my clock value and didnt touch timeout or regvalue which i will when i get home.  But I do have an extranonce copy of cgminer installed.  Though I dont think that matters.

I was under the impression the default voltage is 0785 which is apparently wrong it is 0725 according to you.  The datasheet just shows me using less power than a factory s3. Its all really confusing. What do i add to get actual watts like the control board uses added to the asics.  Im using a 750w gold rating thermaltake toughpower 2 pcie.  Guy i got it from said use 4 pcie but he gave me two pcie cables with 2 pcie ends on one side so i figured i shouldnt plug in the additional 2 since they probably are on the same wire