We tested the cooling system synthetically and with a 2.0GHz Pentium 4 processor for overclockability. Sound levels were also measured and compared to a reference Pentium 4 system in an Antec SX1030B case.
Starting off at the default speed of 2018MHz we wanted to see just how high we could take the 2.0GHz Pentium 4 we had in this system. For reference, we used a VIA P4PA motherboard, MSI Geforce 3 Ti 200 video card and 256MB stick of Corsair XMS 2400 DDR memory under Windows XP professional.
With the same really aggressive settings that our pal Colin used in PCstats's review of the excellent VIA P4PA motherboard we were able to easily reach ahead and get Windows to load up at 2.250GHz (112x20), then 2.267GHZ (113x20), 2.290MHz (114x20), and finally up to 2.308MHz (115x20). For a Williamette core Pentium 4 that is a really great overclock! Yup, it's a Swiftech :)
Sound Level Measurements:
The sound measurements were obtained with an Omega HHSL-1 sound level meter (range 35dba-130dBa). These are ambient measurements and indicate how quiet the the two types of cases and cooling systems are. The Swiftech case uses liquid cooling and is by default pretty quiet at about 43 dB in our tests. The Antec case was originally measured at 47 dB and it used a standard fan and heatsink for cooling. Only with the addition of some good quality after market sound absorbing materials was it able to quiet down.
We didn't have an opportunity to test out those same materials on the Swiftech Quiet Power case but you can probably guess the results would have even more quiet.
Keep in mind that a in most acoustic tests a drop of 3 dBa is hard to notice to the average human ear, but anything more should be easily perceptible.
Synthetic Temperature Test Results: *Ranked according to 100W small interface die test results.
The tables are little bit stacked up against the reference heatsinks because none of them are anything other than standard heatsinks. the Swiftech Quiet Power system did remarkably well on our synthetic temperature test platform. On both the small interface die and the larger Pentium 4 like interface die the thermal results were pretty damn good for simple air cooling.
Naturally, we have to look at the rise above ambient temperature results to see where things really stand!
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