As long as no checkpoint is made, yes, the task will resume from zero percent. The cep2 sub-jobs were reordered to run the longest at the start, so know what you have to do. Check task properties to verify a task has checkpointed or switch on the checkpoint_debug logging/printing in the event log to choose a good moment to power cycle. And when doing one, best to exit boinc core agent completely prior to doing that. If the os is too quick, cep2 might not have enough time to save the intermediate results properly.

Thanks for both responses.... had to power down since my RAM chips came in.

The cep2 progress is a proration against the maximum runtime of 18 hours, not how many jobs in the package were processed, but this could have changed, although, there was no new app version launched with for the latest library, yet.

The thing you were describing about the 18 hour cut off point and the task had reached 98% complete this has happened to a few people. I can understand how annoying it is however this is perfectly normal behavior. Completely out of interest can you remember how many jobs had the task completed when it reached the hard limit