To compared these two gigantic coolers, I
installed each of them on our P3-450 running at 580Mhz. The P3-450 has a temp
probe taped about 1mm from the CPU core. The temp probe sends its temp reading
to a
Super Cooler EC2-2E system monitor. This allowed me to run my torture test
and monitor the CPU temp at a glance.
P3 with temp probe
The test consist of running Prime 95 and
Unreal demo loops for 30 minutes. During that time, I noted the average and
highest temperature readings. Just to show how high a level these two coolers
perform at, I toss in some readings from a few mere mortal coolers, namely
the AMK SECC80 and SECC80+ coolers, AMK 2X60, Vantec P3-D5030 and a
Global Win VEK 32 modified for P3 use.
Installation of either heatsink takes some
care. The VOS32 came ready to be installed on Pentium 2 or an Athlon. I had to
install the Pentium 3 mounting hardware. The Alpha comes unassembled and
does take longer to install. Ease of installation would have to go to the Global
Win. However, the best mounting system would have to go to Alpha. The Global Win
use clips to mount on to the CPU. Alpha uses bolts to get a super tight fit. Way
tighter than the Global Win clips. Both coolers blocked off DIMM slot 1of the
Abit BE6 motherboard. I had to move the RAM to slot 3.
|
Cooler |
Highest Reading |
Average Reading |
|
Global Win VOS32 |
34.4C |
33.0C |
|
Alpha P3125 |
34.5C |
33.0C |
|
AMK-2X60 |
39.8C |
39.3C |
|
AMK-SECC80+ |
41.3C |
40.5C |
|
Vantec P3-D5030 |
45.5C |
44.5C |
|
AMK-SECC80 |
44.6C |
44.1C |
|
Global Win VEK32 |
42.9C |
41.5C |
The Alpha P3125 and Global Win VOS32 easily defeated the
other coolers. They recorded the lowest temp readings among the coolers tested.
The performance is simply outstanding. However, you can still improve it more if
you mount the unit without the Pentium 3 backplate. There are many different
ways to attach the heatsink to the P3 without a backplate.
Click here to see how I did it. Here are the no backplate results:
|
No Backplate |
Highest Reading |
Average Reading |
|
Global Win VOS32 |
31.2C |
29.5C |
|
Alpha P3125 |
31.5C |
29.8C |
|
AMK-2X60 Without Rear Fan |
35.2C |
35.0C |
|
AMK-2X60 With Rear Fan |
34.8C |
33.6C |
|
Global Win VEK32 |
40.9C |
39.8C |
Without the backplate, both the Global Win VOS32 and Alpha
P3125 were able to keep the CPU below 30C. It is possible to improve the
performance of the VOS32 even more because its clipping system allows for the
installation of a fan to cool the back side of the Pentium 3. That might make a
good future project.
Next Page: The winner is!
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