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Originally Posted by bigben2k
Well, I'm sorry to say that I took part in that too, and I probably didn't help any either. I have stacks and stacks of measuring instruments, but I do plan on putting it to use.
Honestly JD, I think you were on the right track with measuring Max Overclock.
Hopefully, what we went through has taught us that there is still a lot of variables, and what they are. For example, the cooling effect is going to depend on the exact position of the core on the chip (so you can't just swap processors, and call it all the same). Also, if you're going to do this on a regular basis, take some time and re-test some blocks that you tested previously, once in a while, to make sure that your measurements are still the same (processors do wear out).
I put my testbench on hold because of the expense, but also because I needed to refocus on what I was trying to accomplish.
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I have tried the CPU/Mobo but find it real difficult to unmount the blocks. The large IHS combined with the thermal compound keeps ripping the the CPU out of the socket when trying to pull it off. The pins on my test CPU are pretty worn just after a few mounts.
This last week I have spent a lot of time comparing my new die sim results with the results from CPU combo. Here are the results with the Danger Den Maze 4 and AquaXtreme MP-05-SP LE.
Maze 4
AMD Sempron A64 2500+ Stock 1400mhz 62watts
@2GPM 11C
@1.5GPM 11C
@ 1GPM 12C
@ .5GPM 13C
Maze 4
AMD Sempron A64 2500+ 1862mhz approx. 82watts
@2GPM 14C
@1.5GPM 15C
@ 1GPM 15C
@ .5GPM 16C
MP-05 SP LE
AMD Sempron A64 2500+ Stock 1400mhz 62watts
@1.5GPM 8C
@ 1GPM 9C
@ .5GPM 9C
MP-05 SP LE
AMD Sempron A64 2500+ 1862mhz approx. 82watts
@1.5GPM 10C
@ 1GPM 11C
@ .5GPM 12C
Maze 4
72 watt 14mm square aluminum die
@2GPM 16.1C
@1.5GPM 16.5C
@ 1GPM 17.2C
@ .5GPM 19.0C
MP-05 SP LE
72 watt 14mm square aluminum die
@1.5GPM 13.5C
@ 1GPM 13.7C
@ .5GPM 14.4C
The results are pretty damn consistent between the 2. Close enough for me to justify using the die sim not only because the results are consistent but also not ruining a CPU after a short time. Also mounting is easier on the die sim and more accurate with with my
Cole Parmer thermometer and YSI probes.
Therefor I think either a CPU/mobo combo or a die sim would be fine. I am thinking a Intel socket 755 pinless for the CPU/mobo combo though as those are pinless CPU's. On the bad side of that Intel has some serious thermal protection. The throttling may make your overclock an unreliable measurement if that is what you want to go by.
I think you are better off testing your CPU at various overclocks using the stock cooler that comes with the CPU and calculate the approximate wattage used and repeat those on every block/cooler tested. You can also find the max overclock for the hell of it.
In other words do it how you want as the results will be pretty much be the same in the end. The order of which block is best will not vary much. That is advice for reviewers. If you still want to design coolers then you will want to get a lot more precise I imagine. However at this point in the game trying to design new coolers is pretty pointless.