Kernel panics during boot cab be observed in files ttyUSB1 and ttyUSB5 In each case the FEE64 successfully completed reboot c. 5 minutes later
Attachment 1 - FEE64 temperatures illustrating (we assume) a faulty PSU temperature sensor for aida07 Attachment 2 - FEE64 temperatures following replacement of aida07 Attachment 3-5 - 1.*.W waveforms for aida01 - aida03 - LED settings for aida02 incorrect, aida01 adaptor PCB incorrectly aligned Attachment 6-7 - 1.*.W waveforms for aida02 and aida04 Attachment 8-9 - aida01 - aida04 1.8.L spectra full range and expanded scale pulser peak width c. 15-20 channels FWHM Attachment 10-12 - good events stats for all FEE64s and all statistics for aida01 and aida05 Note aida01 - aida04 show rates expected, all other FEE64s show very rates due to noise aida01 - aida04 adaptor PCB are well grounded to FEE64 copper mezzanine/cooling plate, the other FEE64s are not Attachment 13-14 - aida01 - aida04 rate spectra before and after correcting alignment of aida01 adaptor PCB Attachment 15 - aida01 - aida04 1.8.L spectra, expanded scale Attachment 16 - illustrates high frequency noise (period 5 samples = 100ns) for aida01 which is not observed for aida02 - aida03 subsequently determined that this is not due to a possible adaptor PCB fault by changing the adaptor PCB Note that with bias turned on this noise did appear when Bias was on but all the other groudning connectors for aida05-aida12 were not in effect. Attachment 17-19 - PuTTY connection to CAEN 1419ET 4ch high voltage supply illustrating PuTTY, N1419ET configuration and leakage current with 100V applied to adaptor PCBs (no input cabling or DSSSD connected) Note the CAEN N1419ET appears as a 'USB ACM' device and we connect using /dev/ttyACM<n>.