Air Cooling Setup
For CPU air cooling
AS3 w/ a SK7 and a TT SFII are used.
Sometime a Vantec Tornado is used for testing oc. The fan running 5700 rpm pushing 84.1 CFM can lower the die temp by as much as 5C loaded. But it cannot be used regularly due to excessive fan noise, unless a 10 Ohm VR is added to adjust its speed.
Will soon switch to a SLK-800U for further testing. The SLK-800U should lower the die temperature by 2-3 C at heavy load. The SLK-800U has a thermal resistance 0.23 C/W, whereas the SK7 being 0.25 C/W. E.g. for cooling a 100W CPU, the temp would be 2C lower.
With the SLK-800U and Vantec Tornado, I estimate it can lower the die temp by 5-8 C under heavy load, and would bring the die temp under 40 C, which is an important temperature to keep the CPU below. I find that the 1700+ DLT3C begins to increase its leakage current drastically around 40 C.
For case cooling:
Three/four case fans are used, plus the PSU fans.
1. There is a 120 mm fan about 64 CFM in the front for intake to push air to cool the motherboard and the video card GPU side, to lower the system temperature. (80/90 mm fan is OK if 120 mm does not fit).
2. There is a 80 mm fan about 32 CFM on the side panel for air intake to the CPU area.
3. One/two 80 mm fan about 40 CFM at the back of the case for outtake.
4. Also the PSU has two fans outtaking air from inside the case to exterior through the back fan.
Each case fan has noise level around 32 dBA or below.
Temperature and fan speed for daily usage
Objective is to keep CPU temp under 40C and fan around 3200-3500 CFM for continuous regular usage. This is much more enviornment friendly than trying to run and stress the last 100 MHz out of the CPU.
At this level of die temp and fan speed and fan noise, the 1700+ DLT3C should still be able to deliver 2.4+ GHz.
E.g. 2.4 GHz stable using 1.65V, 38 C load, 3000 rpm fan
I got two 0310 1700+ DLT3C, one XPMW, one WPMW, they are able to meet the objective of 2.4 GHz stable, under 40 C, 1.7 V, 3200 rpm. They both can be oc'ed to above 2.5+ GHz stable, but with higher Vcore (~1.9V), temp and fan rpm.