> Currently seems to be a problem with the memory check in the system wide checks that produces the message shown
> - attachment 1
> 
> DAQ is being run with the following options - attachment 2 and 3
> 
> The PSU Temperature readout in aida07 appears to not be working. Shows a permanent value of 160 degC - attachment 4
> Water inlet and outlet feel cold so believe it is an artiface
> aida07 also appears to quite often take longer to mount than the others. Often coming in 5 minutes later than them.
> 
> Only tested aida01 - aida04 for noise as we lacked the required HDMI type c cables to set up a full MACB branch
> structure.
> 
> We appear to have considerable noise issues in the FEE modules with adapter boards on but no DSSD cables
> connected but test input loop and pulsar connected.
> The pulsar appears to be the circuit of doom for this noise. With all test input ports connected to a pulsar
> chain each FEE is seeing in the region of 800k rate of good events with discriminator thresholds set to 255.
> Removing the pulsar cable from the end FEE but leaving the chain in place reduces this to around 500k.
> 
> Grounding an adapter board to the copper cooling plate also further reduces this noise somewhat but still leaves
> rates of around 300k.
> 
> If an adapter board is isolated from the chain so that it has nothing connected to it the rate drops to around
> 300-400 which is just the rate of the sync pulses.
> 
> For the following screenshots aida01 and aida02 are isolated adapter boards.
> aida03 and aida04 are connected via lemo cables via the test input to other FEE modules in their chains.
> Waveforms for the 4 FEEs - attachment 5-8
> Full statistics for the 4 FEEs - attachment 9-12
> Good events comparison - attachment 13
> 
> It appears we need to provide a low resistance path between the FEE cooling plates like we do in RIKEN.
> Currently the measured resistance between FEE 6 and 10 is around 2 ohm.
> 
> Also we may need to isolate the pulsar signals themselves
> 
> A potential difference of 5mV was also measured between the chassis of the NIM modules and the cooling plates.
> Resistance was 0ohm when the power was on.

Re:- Memory check problem..... the required log file is not at /MIDAS/XilinxLinux/...... The file is a log file placed
in the FEE64 root file system. The code will be altered in time to reflect the new location by using a local variable.

Re:- aida07. This module should be urgently removed and sent back to Daresbury for repair. This measurement could be
indicative of the worse problems with this module.

Re:- Earthing. Please could you add some photos of the installation. ( apologies if they are already here ;-) If I
recall it is worth adding a low resistance connection ( big copper braid ) from the NIM bin to the adaptor board earths.