[pHaestus]

Temperatures taken with Digitec 5810 and YSI 700 series dual linear thermistors (0.01C res). I get better delta T numbers than you'd expect because I am lucky enough to have two probes that read EXACTLY the same over the 20-30C range (maybe a longer range but I haven't tried). Air temperature was monitored but not tabulated here because (a) the waterblock is going to have its springs swapped out this week, and (b) I could tell that there were some secondary losses at low flow rates so I wasn't as religious about writing down all the other temps.

I can take a picture tonight of the loop. I have it currently set up for maximum convenience in plumbing and so I could use one probe for measuring both rad out and wb in (plumbing is res -> pump -> T1 ->rad ->T2 ->wb -> T3 -> flowmeter -> valves ->res). I have another probe though and so it is trivial to replumb so wb in and out are measured very close to the wb. I may need to insulate the hose in that region too.

On how was data obtained:
System was allowed to equilibrate for exactly 60 minutes, at which time I would record the wb in and out temperatures every ten seconds over a one minute period. While I was writing these down in Excel my MAX6655 diode reader was recording CPU temperatures at 4Hz sampling rate. By 60 minutes the numbers track exactly and the delta T was never changing over the measurement period (the absolute value of wb in and out would go up or down by 0.01C in some cases though).