Topic: Hacking The KNC Firmware: Overclocking - page 24. (Read 144343 times)

So to confirm you updated to 1.0, then changed the cgminer.sh based upon this pastebin, did you do any web admin changes in the advanced section?

you can try this....http://pastebin.com/AsGZKu4E

no clue if it'll work, i just used the individual die setting to try n oc all your mods...i've set'em all at 291 for ya...Let me know if it worked


yes its working for me on 1.0fw

any ideas of what variables to change to make 5 boards take the OC settings.

edit: I have tried adding 4 to the end of 0 1 2 3 at the 2 or 3 points i could find this mentioned bellow, but it did not have an effect.

eidt: if anyone can edit the bellow for me so it works with 5 boards i would be extremely grateful and would offer a small reward

The Bermod 0.4 operates in the firm 1.0? Júpiter october 4vrm

The VRM are designed for 40W, many of us regularly push them to between 50-60W.
At 70W per VRM I think you are on your own in new territory!

Your screenshot shows 70W per die (per VRM also).
70W x 4 die = 280W per ASIC

Add AT LEAST 10% to that because the VRM's use that much before even cooking them by overclocking.

OVER 300 Watt per ASIC is what your power supply was asked to do before failure.
(you were asking for >1200W from a 1100W supply)

I suggest 300W per ASIC is possibly too much.
Almost definately too much for a single PCIe 6 pin power connector.
You can install another on each module, KnCMiner provided for that on the PCB.

YMMV

#!/bin/sh

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

use_bfgminer=
if [ -f /config/miner.conf ]; then
        . /config/miner.conf  #if bfgminer is enabled, this file contains: use_bfgminer="true"
fi
if [ "$use_bfgminer" = true ] ; then
        DAEMON=/usr/bin/bfgminer
        NAME=bfgminer
        DESC="BFGMiner daemon"
        EXTRA_OPT="-S knc:auto"
else
   DAEMON=/usr/bin/cgminer
   NAME=cgminer
   DESC="Cgminer daemon"
   EXTRA_OPT=
fi


set -e

test -x "$DAEMON" || exit 0

do_start() {
   # Stop SPI poller
   spi_ena=0
   i2cset -y 2 0x71 2 $spi_ena

   good_ports=""
   bad_ports=""

   # CLear faults in megadlynx's
   for b in 3 4 5 6 7 8 ; do
      for d in 0 1 2 3 4 5 6 7 ; do
         i2cset -y $b 0x1$d 3 >/dev/null 2>&1 || true
      done
   done

   for p in 0 1 2 3 4 5 ; do
      i2cset -y 2 0x71 1 $((p+1))
      good_flag=0
      ar="$(spi-test -s 50000 -OHC -D /dev/spidev1.0 0x80,3,0,0,0,0,0,0 | tail -c 13)"
                if [ "x$ar" = "x00 30 A0 01" ] ; then
         good_flag=1
      fi
      ar="$(spi-test -s 50000 -OHC -D /dev/spidev1.0 0x80,2,0,0,0,0,0,0 | tail -c 13)"
                if [ "x$ar" = "x00 30 A0 01" ] ; then
         good_flag=1
      fi
      ar="$(spi-test -s 50000 -OHC -D /dev/spidev1.0 0x80,1,0,0,0,0,0,0 | tail -c 13)"
                if [ "x$ar" = "x00 30 A0 01" ] ; then
         good_flag=1
      fi
      ar="$(spi-test -s 50000 -OHC -D /dev/spidev1.0 0x80,0,0,0,0,0,0,0 | tail -c 13)"
                if [ "x$ar" = "x00 30 A0 01" ] ; then
         good_flag=1
      fi

      if [ "$good_flag" = "1" ] ; then
         good_ports=$good_ports" $p"
      else
         bad_ports=$bad_ports" $p"
      fi
   done

   if [ -n "$good_ports" ] ; then
      for p in $good_ports ; do
         # Re-enable PLL
         i2cset -y 2 0x71 1 $((p+1))
         for c in 0 1 2 3 ; do
            cmd=$(printf "0x84,0x%02X,0,0" $c)
            spi-test -s 50000 -OHC -D /dev/spidev1.0 $cmd >/dev/null
            cmd=$(printf "0x86,0x%02X,0x02,0x91" $c)
            spi-test -s 50000 -OHC -D /dev/spidev1.0 $cmd >/dev/null
            cmd=$(printf "0x85,0x%02X,0,0" $c)
            spi-test -s 50000 -OHC -D /dev/spidev1.0 $cmd >/dev/null
         done
         
         # re-enable all cores
         i=0
         while [[ $i -lt 192 ]] ; do
            i2cset -y 2 0x2$p $i 1
            i=$((i+1))
         done
         spi_ena=$(( spi_ena | (1 << $p) ))
      done
   fi
   if [ -n "$bad_ports" ] ; then
      for p in $bad_ports ; do
         # Disable PLL
         i2cset -y 2 0x71 1 $((p+1))
         for c in 0 1 2 3 ; do
            cmd=$(printf "0x84,0x%02X,0,0" $c)
            spi-test -s 50000 -OHC -D /dev/spidev1.0 $cmd >/dev/null
         done
         
         # disable all cores
         i=0
         while [[ $i -lt 192 ]] ; do
            i2cset -y 2 0x2$p $i 0
            i=$((i+1))
         done
         spi_ena=$(( spi_ena & ~(1 << $p) ))
      done
   fi

   # Disable direct SPI
   i2cset -y 2 0x71 1 0

   # Enable SPI poller
   i2cset -y 2 0x71 2 $spi_ena

   start-stop-daemon -b -S -x screen -- -S cgminer -t cgminer -m -d "$DAEMON" --api-listen -c /config/cgminer.conf $EXTRA_OPT
}

do_stop() {
        killall -9 bfgminer cgminer 2>/dev/null || true
}
case "$1" in
  start)
        echo -n "Starting $DESC: "
   do_start
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
   do_stop
        echo "$NAME."
        ;;
  restart|force-reload)
        echo -n "Restarting $DESC: "
        do_stop
        do_start
        echo "$NAME."
        ;;
  *)
        N=/etc/init.d/$NAME
        echo "Usage: $N {start|stop|restart|force-reload}" >&2
        exit 1
        ;;
esac

exit 0

anyone who can upload modified cgminer.sh-backup?

The VRM are designed for 40W, many of us regularly push them to between 50-60W.
At 70W per VRM I think you are on your own in new territory!

Your screenshot shows 70W per die (per VRM also).
70W x 4 die = 280W per ASIC

Add AT LEAST 10% to that because the VRM's use that much before even cooking them by overclocking.

OVER 300 Watt per ASIC is what your power supply was asked to do before failure.
(you were asking for >1200W from a 1100W supply)

I suggest 300W per ASIC is possibly too much.
Almost definately too much for a single PCIe 6 pin power connector.
You can install another on each module, KnCMiner provided for that on the PCB.

YMMV

has anyone tried this with an oct junit with 8 activted VRMS? i wonder why everyone with  with 8 vrms boards oct reaching only 790Gh/s max.

Edit to say, after to put again the firm 0.99.1 tune, i have a little problem with voltages.. it was crazy.. now is working well after reset to factory defaults in advanced but a line 12v of my 1100w PSU now is dead, i got a screenshot, any idea of this?

I used the method of flashing 99.2E then back to 99.2, this enables the 8vrm's and then i just proceeded to tune and OC. Been running very stable with low HW and some buzzing noise for about a week.

the volts are pretty even among each pair, nothing additional done, no problems here.