Here is a copy of the M122

I tried again to capture before it went into Warn loop but even sitting with wireless keyboard in hand to try and stop the process as soon as the loop started it would clear the putty terminal history.

M122 right after boot

M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.3beta running on Duet 3 MB6HC v1.01 or later (SBC mode) Board ID: 08DJM-956L2-G43S8-6J1D8-3S46S-9V2LF Used output buffers: 1 of 40 (10 max) === RTOS === Static ram: 149784 Dynamic ram: 59500 of which 100 recycled Never used RAM 141288, free system stack 178 words Tasks: Linux(ready,149) HEAT(blocked,299) CanReceiv(blocked,865) CanSender(blocked,365) CanClock(blocked,326) TMC(blocked,50) MAIN(running,1260) IDLE(ready,20) Owned mutexes: HTTP(MAIN) === Platform === Last reset 01:05:58 ago, cause: power up Last software reset details not available Error status: 0x00 Aux0 errors 0,0,0 Aux1 errors 0,0,0 MCU temperature: min 21.7, current 33.4, max 33.5 Supply voltage: min 24.4, current 24.5, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 12.2, current 12.2, max 12.3, under voltage events: 0 Driver 0: position 0, standstill, reads 15592, writes 11 timeouts 0, SG min/max 0/0 Driver 1: position 0, standstill, reads 15592, writes 11 timeouts 0, SG min/max 0/0 Driver 2: position 0, standstill, reads 15586, writes 17 timeouts 0, SG min/max 0/0 Driver 3: position 0, standstill, reads 15586, writes 17 timeouts 0, SG min/max 0/0 Driver 4: position 0, standstill, reads 15592, writes 11 timeouts 0, SG min/max 0/0 Driver 5: position 0, standstill, reads 15592, writes 11 timeouts 0, SG min/max 0/0 Date/time: 2021-01-30 19:40:17 Slowest loop: 0.63ms; fastest: 0.05ms === Storage === Free file entries: 10 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, maxWait 0ms, bed compensation in use: none, comp offset 0.000 === MainDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === AuxDDARing === Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1 === GCodes === Segments left: 0 Movement lock held by null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause is idle in state(s) 0 Code queue is empty. === CAN === Messages queued 15761, send timeouts 0, received 47228, lost 0, longest wait 2ms for reply type 6049, peak Tx sync delay 172, free buffers 48 (min 47) === SBC interface === State: 4, failed transfers: 0 Last transfer: 1ms ago RX/TX seq numbers: 3432/3432 SPI underruns 0, overruns 0 Number of disconnects: 1, IAP RAM available 0x2d584 Buffer RX/TX: 0/0-0 === Duet Control Server === Duet Control Server v3.2.0 Code buffer space: 4096 Configured SPI speed: 8000000 Hz Full transfers per second: 35.81 Maximum length of RX/TX data transfers: 4756/32

config.g

; Configuration file for Duet 3 (firmware version 3) ; executed by the firmware on start-up ; ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Duet 3" ; set printer name G21 ; Set units to Millimeters G4 S1 ; wait for Daughter Boards to start ; Drives M569 P40.0 S1 R1 ; External driver board (40): driver 0 (X) goes Backwards ( T1.25:1.25:1.25:1.25 ) M569 P41.0 S1 R1 ; External driver board (41): driver 0 (Y) goes Backwards M569 P20.0 S1 R1 ; External Toolboard (20): driver 0 (E) goes Backwards M569 P2 S0 D3 H35 V35 S0 ; physical drive 2(Z1) with StealthChop (D,H,V) and goes forwards M569 P3 S1 D3 H35 V35 S1 ; physical drive 3(Z2) with StealthChop (D,H,V) and goes Backwards ;M915 P2 T32 ; additional setting for SealthChop on Drive 2 ;M915 P3 T32 ; additional setting for SealthChop on Drive 3 M584 X40.0 Y41.0 Z2:3 E20.0 ; set drive mapping M350 E16 Z16 I1 ; configure microstepping with interpolation M350 X1 Y1 I0 ; configure no microstepping without interpolation M92 X200 Y200 Z1200 E415 ; set steps per mm E392.5507 M566 X900.00 Y900.00 Z150.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z700.00 E3000.00 ; set maximum speeds (mm/min) M201 X5000.00 Y5000.00 Z1500.00 E2000.00 ; set accelerations (mm/s^2) M906 Z3500 E600 I10 ; set motor currents (mA) and motor idle factor in percent M84 S3 ; Set idle timeout ; Axis Limits M208 X-260:266.7 Y-135:138.5 Z-.5:310.73 ; set axis maxima ; Z-Probe M558 P9 C"20.io0.in" H5 R.02 F120 T3000 ; defines probe type, pin, Starting height, .02 seconds settle time, FeedRate, Rapid Speed (mm/min) M950 S0 C"20.io0.out" ; defines GPIO servo pin for BLTouch Control G31 X-4.25 Y46 Z4.12 ; defines Probe offset M557 X-132:108 Y-97:90 S20:20 ; define mesh grid size, and probe point spacing M376 H2 ; Mesh bed compensation taper, tapers off adjustments by specified height in mm ; Filament Sensor ;M591 D0 P2 C"20.io2.in" S1 ; defiens filament monitor on Extruder 0, simple switch: low when present, no toolboard io2, works when printing from SD Card ; Endstops M574 X1 S1 P"io0.in" ; set X minimum endstop to microswitch on io0 M574 X2 S1 P"io3.in" ; set X maximum endstop to microswitch on io2 M574 Y1 S1 P"io5.in" ; set Y minimum endstop to microswitch on io5 M574 Y2 S1 P"io7.in" ; set Y maximum endstop to microswitch on io7 M574 Z2 S1 P"io8.in" ; set X minimum endstop to microswitch on io8 ; Heaters M308 S0 P"temp0" Y"thermistor" T100000 B3950 H2 ; configure sensor 0 as thermistor on pin temp0 and adjust ADC High Gain M950 H0 C"out0" Q20 T0 ; create bed heater output on out0 and map it to sensor 0 M307 H0 B0 S0.50 ; disable bang-bang mode for the bed heater and set PWM limit (0-1) M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M308 S1 P"20.temp0" Y"thermistor" T1073 B-450 ; configure sensor 1 as PT1000 on pin temp0 on tool board and adjust ADC Low Gain (M308 S1 P"20.temp0" Y"pt1000") (M308 S1 P"20.temp0" Y"thermistor" T1073 B-450) M950 H1 C"20.out0" T1 ; create nozzle heater output on out1 and map it to sensor 1 M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H1 S300 ; set temperature limit for heater 1 to 300C ; Fans M950 F0 C"20.out1" Q25000 ; create fan 0 on Toolboard(20) to out2 and set its frequency M106 P0 S1 H1 T40 ; set fan 0 off, bind to heater 1, triggers on at 50 deg.C Resumes after pause. M950 F1 C"20.out2" Q10000 ; create fan 1 on Toolboard(20) to out1 and set its frequency M106 P1 S0 H-1 R1 ; Sets Fan 1 to off with no heater binding M950 F2 C"!out4" Q25000 ; create fan 2 on pin out4 and set its frequency M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off ; Tools M563 P0 D0 H1 ; define tool 0 G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ; Custom settings are not defined ; Miscellaneous M501 ; load saved parameters from non-volatile memory