Zalman CNPS7000A-AlCu Review - Testing
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I compared the CNPS7000A-AlCu on both silent and normal mode to the boxed Intel cooler and the Arctic-Cooling Super Silent 4Pro L. All three coolers are relatively quiet versus everything else on the market. All coolers were tested on the same CPU and same motherboard in the same closed case: P4 2.4GHz@3.0GHz, Abit IS7, and Cooler Master WaveMaster. The last variable is the side of the case has been modified to fit an 80mm blowhole over the CPU area. The same 80mm fan was used in all testing.
Temperatures and fan speeds were recorded from Winbond Hardware Monitor. Data was taken at 20-30 minute intervals. A combination of Prime95 and CPU Burn (burnp6.exe) was used to simulate load. Room temperature was maintained at 22 degrees Celsius.
Intel Pentium 4 2.4GHz @ 3.0GHz (166 FSB)
| HS/F | CPU Temp Idle (°C) | CPU Temp Load (°C) | Fan Speed (RPM) |
| Stock | 46.0 | 62.0 | 2219 |
| 4Pro L - Low | 44.0 | 59.5 | 2009 |
| 4 Pro L - High | 41.5 | 56.5 | 2909 |
| 7000A-AlCu - Silent | 47.5 | 60.5 | 1360 |
| 7000A-AlCu - Normal | 46.0 | 55.0 | 2557 |
It's interesting to see the stark contrast between the 7000A-AlCu's idle versus load performance. In comparison to the boxed cooler and the 4Pro L, the 7000A-AlCu performs better under load than idle. The flower/thin fin design must have something to do with this, considering there is just a 1.5 degree gap between Silent and Normal Mode at idle but a 5.5 degree gap under load. Silent Mode is inaudible in a closed case and Normal is just a low pitched hum.
Next: Conclusion >>
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