Worthless post, very poorly researched and poorly written. I have checked your tasks, you haven't cheated anything - you received zero credits for those failed tasks which your faulty machine thrashed.

On the other hand, you managed to compute 24 valid CUDA PPS Sieve tasks and your RAC climbed a little because of that. PPS Sieve tasks are short but yield most credits (proportional to average runtimes) because you cannot discover a new prime number by crunching Sieve tasks, you are just doing 'preparation work' for LLR applications (which are more demanding and which can indeed uncover a new prime).

Posting poorly researched articles like this is usually the quickest way to get flagged. Join our Slack, we have a channel there called 'crunch-tinkering' (dealing only with BOINC crunching), you would get plenty of info there for a quality Steemit post.