We slipped back to 4th by about 800 points. We have competition!
Edit: I put my MSI Radeon HD 7790 back to work. It will turn about 75,000 ppd. ($35.00 on eBay)
Edit2: I cloned the SSD to a SSHD after a second lockup of computer 4HD7990. When I removed the SSD SATA cable from the MOBO after cloning, I found that the SATA cable was much too easy to remove (almost disconnected). I had wanted to remove the SSD from crunching duties anyhow. I hope this cures my lockups. The ASUS B250 Mining Expert is usually reliable. If it locks up again, I will remove the Beta video drivers.
Edit3: Installed WHQL drivers.
Edit4: Clean installation of Windows 10 Pro, updated BIOS, set optimizations and personalization. Running BOINC 7.15.0. Crunching, but had only 1/2 of daily output today due to lost time. I am going to get more RAM (16GB vs current 8GB). It was pushing my 75% RAM limit for BOINC and it had many hard faults because I was running 24 WUs at a time. I reduced it to 16 WUs, 2 per GPU.
Edit5: Replaced a
PCIE Riser 1X to 16X Graphics Extension adapter card for one of the video cards. This seems to have fixed the lockup problem.