The Results (Farenheight)

After we reapplied OCZ Ultra II thermal paste, we waited several days (as before) to let the paste fully "set." Room temperature remained constant during all tests we ran. This page is in Farenheight format, a Celsius version is availble here.

The idle CPU temperatures as reported by MBM.

Idle CPU temperature was measured one hour after the full load temperature reading was taken. A significant difference before and after the lapping is present. We especially notice the difference when the fan is on low, which is where the heat disapating power of the heatsink is most stressed.

Full load CPU temperature as measured by MBM.

For out full load test, we ran Distributed.net's RC5-72 Client, benching for no other than the Official Gideontech.com RC5-72 Team. The client was run for one hour before temperatures were taken, after we recorded all the temperatures the client was shut down to start the idle CPU temperature test.

For this graph we converted seconds into minutes (i.e., .666 minutes is 40 seconds).

While we knew that lapping the heatsink would surely bring better temperatures, we also wondered just how fast it would bring us down to the lower temperatures in comparison. So, idle and maximum temperatures were measured with the stock heatsink and stock thermal compound. Then, we timed how long it took the CPU to go from max to idle temperatures. We then applied the OCZ Ultra II paste and timed it again (from the new maximums to the original minimums of Low-98F Med-98F High- 96F). Finally, we timed it again once after we lapped the heatsink and reapplied the thermal paste. As you can see, the lapping did bring a dramatic decrese in the time it took for the temperature to go down.