(Nope - didn't run the pump dry - hooked it up wrong.(
okie dokie ... been a bit quiet lately, but I haven't given up yet!
Burned out my pump last week, so had to wait while a new one came in:

My new pump + 1 with the obligatory Petra's pen and note pic. Decided to get two pumps, cause I might as well do another loop.
Here's one pump opened up. I watched the installation video on Petra's site, so figured I couldn't screw this up - note the large O-ring left in the old top - gotta transfer that to Petra's top:

That was so easy, I installed the top on the other pump as well. Tested out the first pump in my old loop - all works well.
Now - on to the new stuff. Decided to go back to my ASUS P5N32E-SLI board:

Since I was taking everything apart, thought I'd try these:

And, all the blocks mounted on the motherboard:

Hey - wait a minute, what's this on the floor under the table:

Crikees $#@%& ... so much for me knowing how to install the tops on my pumps. Took apart the one I hadn't tested, sure enough - it was missing the O-ring. Whew, glad I found that before I hooked it up.
And now ... a couple pics of my new loop during leak testing:


Slight problem with my loop. The small loop connecting the mosfets isn't going to work - gotta figure something else out - made the loop a little longer and it works okay now:
Wellllll ... with every step forward, we have the potential to go back two...
Got the loops set up for testing in the case:


Everything was working fine ... turned of the PSU, hooked up the fans on the fan controller ... turned PSU back on, started then stopped ... now no power coming from the PSU. I have a spare, but wondering what I did????
EDIT: hooked up the spare PSU, hooked up the pumps, all works fine. Turned it off, and plugged in the other fans just like I did with the other PSU ... everything worked fine and is still working. Guess I'll have to check on a warranty repair for the PCP&C 750W PSU - dang, it's the one that was custom sleeved by Perf-PC's.