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Topic: KNC ASIC Users Thread & FAQ (Read 8761 times)

full member
Activity: 196
Merit: 100
February 10, 2014, 03:48:36 AM
#67
thanks i post there.
legendary
Activity: 1666
Merit: 1185
dogiecoin.com
February 09, 2014, 12:36:13 PM
#66
do use multiple knc minor with same pool ?
should use different pool ?

any tip ?

Thank you =)
This is an older thread, see https://bitcointalksearch.org/topic/guide-dogies-comprehensive-kncminer-saturnjupiter-setup-456033
full member
Activity: 196
Merit: 100
February 09, 2014, 11:49:12 AM
#65
do use multiple knc minor with same pool ?
should use different pool ?

any tip ?

Thank you =)
sr. member
Activity: 476
Merit: 250
let's have some fun
October 18, 2013, 10:37:10 AM
#64
Code:
Filesystem                Size      Used Available Use% Mounted on
devtmpfs                245.1M         0    245.1M   0% /dev
/dev/mmcblk0p3          511.7M     88.0K    511.6M   0% /config


rootfs on / type rootfs (rw,relatime)
proc on /proc type proc (rw,relatime)
devtmpfs on /dev type devtmpfs (rw,relatime,size=251008k,nr_inodes=62752,mode=755)
sysfs on /sys type sysfs (rw,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
/dev/mmcblk0p3 on /config type vfat (rw,sync,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620)

As it seems the only persistent storage is device /dev/mmcblk0p3 mounted on /config.
Therefore cgminer.conf and passwords remain on the system during upgrades&reboots.

One would have to modify the firmware file.
legendary
Activity: 1098
Merit: 1000
October 18, 2013, 09:17:40 AM
#63
I see, thanks for letting me know
If somehow you could set that TZ variable during boot that may be a good solution but I know nothing about linux so no idea how.
sr. member
Activity: 476
Merit: 250
let's have some fun
October 18, 2013, 08:50:41 AM
#62
I see, thanks for letting me know
legendary
Activity: 1098
Merit: 1000
October 18, 2013, 08:42:29 AM
#61
if you want to change the timezone only, you can set your env var 'TZ=GMT'  (or whatever you prefer)
https://bitcointalksearch.org/topic/m.3337684

However it will not sync your time with ntp servers as the approach above from Tigggger

Tried that method as well, but although #date gave the correct response it didn't update the already running cgminer for me which was the thing that was annoying.

Be nice to have a permanent method, ideally an option in the GUI to select timezone.
sr. member
Activity: 476
Merit: 250
let's have some fun
October 18, 2013, 06:20:15 AM
#60
if you want to change the timezone only, you can set your env var 'TZ=GMT'  (or whatever you prefer)
https://bitcointalksearch.org/topic/m.3337684

However it will not sync your time with ntp servers as the approach above from Tiggger
legendary
Activity: 1098
Merit: 1000
October 13, 2013, 06:57:59 AM
#59
Added details of how to show the correct times into the first post

Modifications
Fixing the time.
Machines appear to ship with the time set to UTC, although it's not important it did annoy me not having the correct time, these instructions came from Nanners on the IRC channel and worked for me, replace 'tigggger' with whatever you want.
Quote
1. cd /config
2. mkdir tigggger
3. cd /config/tigggger
4. wget http://www.angstrom-distribution.org/feeds/v2012.12/ipk/eglibc/all/tzdata_2012d-r3.0_all.ipk
5. opkg install /config/tigggger/tzdata_2012d-r3.0_all.ipk
6. rm /etc/localtime (NOTE this gave an error for me as the directory wasn't there, but not important just carry on)
7. ln -s /usr/share/zoneinfo/YOURTIMEZONE /etc/localtime (In my case it was /usr/share/zoneinfo/Europe/Belfast)
8. cd /
9. /etc/init.d/ntpd reload
10. ntpdate -b -u pool.ntp.org

Now if you look at cgminer the time should be correct.
newbie
Activity: 15
Merit: 0
October 12, 2013, 08:28:06 AM
#58
Someone knows what does it mean "FAULT 17" on status of VRM's?


https://i.imgur.com/c8tDprM.png

never seen before. how many cores are enabled for that die/asic?


Now upgraded from 0.90 to 0.95 and the errors went off, but the cores disabled on that core were 48 in total, that's the reason because that core ran much cooler than the others. Dropped to 430w.
legendary
Activity: 2408
Merit: 1004
October 12, 2013, 04:15:12 AM
#57
Which is stable and which is unstable ??with 0.95

The 4 or 8 version?
legendary
Activity: 1848
Merit: 1001
October 12, 2013, 01:40:45 AM
#56
.95 firmware for me is a little slower but more stable... Really torn here between loading .91 back and keeping .95?

Don't know how KNC is going to fix my issue if they are shipping 4vrm per module now and I have 8. It's like I have a different product.

Not always best to be first!

also very interested in the 8 vs 4 VRM boards....

seems to be the difference between a stable 550 and an unstable 400+

sr. member
Activity: 322
Merit: 250
October 11, 2013, 11:46:00 PM
#55
.95 nets me around 275/257 GH/sec for a Saturn on cgminer

the crazy thing is the onboard temps don't read above 48C, and i'm not seeing ANYTHING - VRM modules, caps, etc above 55C at the most.

Makes me think they're not thermally limited for clock rate.  Maybe the buck converters can't push enough current to clock higher or there's not sufficient decoupling capacitance/other voltage issues?

Or do these have untapped potential?  I am ignorant to how these devices are clocked, if cgminer / etc software can adjust the clock frequencies or if it's a hard-soldered oscillator / clock divider or what.

301 watts at the PSU line in

this is also with the cover off, but no external fans
newbie
Activity: 28
Merit: 0
October 11, 2013, 09:34:35 PM
#54
.95 firmware for me is a little slower but more stable... Really torn here between loading .91 back and keeping .95?

Don't know how KNC is going to fix my issue if they are shipping 4vrm per module now and I have 8. It's like I have a different product.

Not always best to be first!
newbie
Activity: 28
Merit: 0
October 11, 2013, 05:59:07 PM
#53
Upgraded from .91 to .95

Erratic first hour, it would go up to 550ghs then crash to 300 something and back. It looks to be settling now at about 450ghs. Will update
hero member
Activity: 518
Merit: 500
Manateeeeeeees
October 11, 2013, 04:51:48 PM
#52
Just got my jupiter and installed 0.95.  After 30 minutes or so of running and slowly creeping to 420GH or so, cgminer restarted and the unit now is averaging 475GH or so, with spikes above 500 being rather common.  Lots of the cores are going off and on due to hardware errors over and over again.  Overall, I'm pretty happy, but I wish it was over 500GH consistently.  It's pulling 2A @ 220V from my PDU, so I'm assuming it's rounding down and it's just above 500W.
hero member
Activity: 560
Merit: 517
October 11, 2013, 04:35:48 PM
#51
Just updated to 0.95; seems to have fixed my problems.  Went from 440GH/s, 16% errors, 900W to 530GH/s, 5% errors, 620W.  Much better!

As I suspected, this update dropped my voltages from 0.92V to ~0.73V, thus the drop in power usage.  Obviously they must have also fixed something else that corrected whatever hashrate issues units like mine were having.
legendary
Activity: 1260
Merit: 1008
October 11, 2013, 03:45:40 PM
#50
Someone knows what does it mean "FAULT 17" on status of VRM's?




never seen before. how many cores are enabled for that die/asic?



fw 0.95 was just released. give it a try.

legendary
Activity: 1260
Merit: 1008
October 11, 2013, 02:21:09 PM
#49
Someone knows what does it mean "FAULT 17" on status of VRM's?




never seen before. how many cores are enabled for that die/asic?
newbie
Activity: 15
Merit: 0
October 11, 2013, 02:18:23 PM
#48
Someone knows what does it mean "FAULT 17" on status of VRM's?


https://i.imgur.com/c8tDprM.png
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