So I wired up all the temp probes, pumps and flow meters and did some measurements.
I have more to do, but I have enough data to post the first set.
- vcore- 1.4 in bios, screenshots show actual on each test
- CPU multiplier at 44
- CPU loaded using Prime95 with the blend option
- GPU2 loaded with windowed Heaven with max settings
Each screenshot shows fan level, fan RPMs, water average, ambient, flow from each pump, pump level and pump RPMs.
Here we're at the bottom of the scale, fans at 20%, pumps at 10% (although I think 0-25% is the same for the pumps). Delta T was 8.7. Noise was non-existent. CPU temps were at the upper range of desirable; I don't see using this as a long term level.
The next test I did was to see if pump speed made any difference; from what I saw the answer is no.
Here I did 30% on fans and pumps, Delta T was 5.9, noise level very very low. Also, CPU temps were much more inline with what I wanted. This may be my day to day level, although I need to redo the OC to see; for max benching of course I'll max pumps and fans.
Here I upped the fans to 40%, fan noise still very bearable, Delta T was 4.3. CPU temps dropped a few degrees from 30%.
Heading to bed so did one final test with fans and pumps at 100%, noise was ok but very undesirable for any length of time. Delta T was 2.7, confirming last night's findings. CPU temps were fantastic, Po is very pleased.
I will post more results Thu. Good news in that my sleeving arrived so this weekend should be cable cleanup!