Zalman CNPS 12X review -
Baseline testing the cooler
Testing The Cooler
Time to test. The cooler will work good with any processor from low to high-end (Core i3/Core i5/Core i7 quad-core and even six-core included up-to 130W) at default operating speeds, and there's room left for overclocking as well.
Now what we always do (for a little more serious testing), is test it with the processor and motherboard set at defaults AND with higher requirements, mildly overclocked as a reference. We change the processor frequency and voltage.
Methodology -- We use an eVGA p55 Classified 200 motherboard, equip it with a Core i5 870 (2.93 GHz) processor, which we overclock to 3200 GHz/1.3 Volts. Now we'll test the cooler in two utilization stages:
- Actively cooled - The CPU has nothing to do (IDLE)
- Actively cooled - Four processor cores / 8 threads 100% stressed (LOAD)
Test 1 - The Baseline Performance
Above we show two baseline temperatures modes. The cooler is set at PWM regulated fan RPM in this stage.
The processor at default processor settings with Speedstep CE1 enabled etc (clocks down in frequency and voltage in IDLE). Now if you do not plan to overclock, that is your baseline temperature at 25~26 Degrees C in IDLE and 46 Degrees C under full load.
Then in dark blue you can see the results done with a slight overclock at ~3.2 GHz on the processor, we apply 1.3v on the CPU and still get excellent temperatures. Roughly 46 Degrees C when we stress all the processor cores, nice that's smack down performance cooling.
Test 2 - IDLE Temperature
Let's have a look at the results compared to other coolers we tested under the same conditions. Below, the IDLE temperatures, thus your processor is doing barely anything. Just sitting and waiting in your system.
Now we compare all cooler based on that small overclock and fixed 80% fan RPM. As you can see, the cooler positions itself in the upper spectrum of the performance range of heatpipe based coolers (with one fan), 29 Degrees C. The two entries are tests based on normal and quiet (with the resistor wire and thus lower fan RPM).
We review the Zalman CNPS 9900 DF CPU cooler with Dual Fan. It's 2012 and Zalman is going strong on the concept and just when you think they can't change anything on that design ...
Zalman CNPS 12X review
The one that everybody remembers and still is going strong where the initial CNPS (Computer Noise Prevention System) CPU cooler, the copper somewhat rounded "butterfly" based coolers. That model has been the biggest success of all their coolers. Anno 2011 Zalman is still going strong on the concept and just when you think they can't change anything on that design they proof that a top notch new cooler based off that old design can still work out well and look gorgeous. The Zalman CNPS 12X comes with Zalmans heat transfer solution by utilizing composite heatpipe technology allowing a Q-Max of roughly 300W, along with a bigger design Zalman claims this cooler to be offering quiet operation and broad compatibility for Intel 2011/1156/1155/1366/775 & AMD AM3+/AM3/AM2+/AM2.
Zalman CNPS 9900 MAX review
Zalman decided to reintroduce the CNPS 9900 model one more time, slightly updated tagged with MAX.
Zalman CNPS 10X Quiet and Extreme review
Zalman recently released a new series of CNPS (Computer Noise Prevention System ) heatpipe based coolers. The new 10X coolers include five nice big heatpipes being cooled by a grotesque120mm fan. The PWM Fan comes with RPM Control which allows you to fine tune the cooler to your specific cooling requirements. And all that in a nice design and not too huge (in dimension) sized cooler. We will put two out of the three to the test namely the CNPS10X Extreme and CNPS10X Quiet. Both coolers impressed us a lot.