Let’s use this thread as a possibility to help users and not rant about iChicken to much, someone can open a rant post later please.
It started all on a cloudy evening when the doorbell rang…
tl;dr
- 4 x iChicken arrived
- no DOA (dead on arrival) all where working
- 2 out of the 4 working only with 50% hash rate compared to the other 2 working ones.
- one power supply did die after 48h
Hardware
Some pictures are taken from the arrival day and some unboxing pictures.
For a full unboxing experience 
please check our the video by Tromp - https://www.youtube.com/watch?v=9dl1DOQGl9o seen now over 10k times by GRIN community?
(I liked the golden engraved letters)
(instructions well written in English and Chinese)
(iChicken vs box)
(Network port, possible SD card slot, some buttons and led’s)
(test setup for the first 24h burn-in phase)
Closeups of naked iChicken
Disclaimer:
No animals where harmed during the disassembly and all iChicken are kept in
species-appropriate husbandry
A few closeup photos of iChicken internal designs
(closeup of Network port, possible SD card slot, some buttons and led’s)
(trying to get rid of the hard shell)
(first glance of the internal workings of an iChicken)
(just pull a bit harder)
(top view … a lot of fans …)
(closeup top view )
(some harmless damage on the iChicken (disclaimer still applies
) )
(top view closeup)
(bottom view)
_( iChicken back in his natural habitat ) _
_( iChicken back in his natural habitat ) _
_( iChicken back in his natural habitat ) _
Mining with iChicken
Based on our obervations within the last few days , we can clearly see two of the 4 iChicken are not working at full speed.
(Big thank you to https://www.grinmint.com/ for the statistics.)
UI from #4 iChicken which is not working correctly and is mining with aprox 1/2 of the speed.
in comparison with #2 which is mining normally
All iChicken are configured the same, except for their hostnames and internal IP addresses.
We did reset all iChicken multiple times and did try different configurations, but with no success.
Software
The iPollo miners are based on OpenWRT software OpenWrt SNAPSHOT, r6467-8165c02 which is great as they are supporting an open-source software stack.
SSH login is available and active and you can login with the default credentials admin/admin:
BusyBox v1.27.2 () built-in shell (ash)
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
OpenWrt SNAPSHOT, r6467-8165c02
-----------------------------------------------------
You are welcomed in a normal BusyBox system with the available tools.
At the moment the system is mounted as read only which means you can not push changes to it if they are running.
partitioning
admin@iHaehnchen01:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 6.0M 6.0M 0 100% /rom
tmpfs 122.4M 440.0K 122.0M 0% /tmp
/dev/mtdblock5 6.1M 3.4M 2.6M 57% /overlay
overlayfs:/overlay 6.1M 3.4M 2.6M 57% /
tmpfs 512.0K 0 512.0K 0% /dev
The root partition is mounted in /rom
/dev/root on /rom type squashfs (ro,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,noatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
/dev/mtdblock5 on /overlay type jffs2 (rw,noatime)
overlayfs:/overlay on / type overlay (rw,noatime,lowerdir=/,upperdir=/overlay/upper,workdir=/overlay/work)
tmpfs on /dev type tmpfs (rw,nosuid,relatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,mode=600,ptmxmode=000)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)
tbd
- disassemble further, the not working or poorly working iChicken and check for Chip defects or missing chips , which could cause the low cycle rate.
- send some closeup shots of the disassembly
- make use of the SD card slot if possible
- dump whole file system to make possible changes
- to UI (overlay)
All pictures will be uploaded with high resolution on the Grinnode.live Github page.
