h2susb78 (FMY) remains unstable. We have been making incremental changes to pin down the problem: Reattached to Dolphin network only run the IOP model reseat all ADC/DAC cards rearrange ADC/DAC cards to LHO CDS standard (ref Rolf's IO Chassis document) We have been stable for 2.5 hours with the latest configuration: Dolphin attached, IOP model only, LHO-CDS card layout. Will run with this overnight.