Zalman CNPS 9900 MAX review
Posted by Hilbert Hagedoorn on: 12/16/2010 02:00 PM [ 0 comment(s) ]
Extended overclock sessions versus temperatures
Since we have such high-end cooling in the house we definitely should have better tweakability on the processor.
As such I was wondering where I'd end up with a quick overclock session. So we use a Core i5 750 processor for a good reason, we had a peek at a selection of stages in overclocking and their respective temperatures, have a look at the following results please.Overclock results Performance mode - temperatures in Degrees Celsius
Overclock results Silent mode - temperatures in Degrees Celsius
Okay so these are the four tested stages:
- Core i5 750 @ default | fan regulated by motherboard (dynamic PWM)
- Core i5 750 @ 3.3 GHz with 1.3 volts on the CPU | unit set to performance mode
- Core i5 750 @ 3.8 GHz with 1.4 volts on the CPU | unit set to performance mode
- Core i5 750 @ 4.2 GHz with 1.5 volts on the CPU | unit set to performance mode
So when we take this Core i5 processor from default to 3800 MHz/1.4v @ CPU we see that the temperatures are not at all an issue -- whatsoever. With the processor stressed we max out at roughly 54 Degrees C. That is just really very acceptable.
Mind you that we measure at a room temperature of 21 Degrees C here. In hot countries the ambient temperature obviously will also have a (negative) effect on overall cooling performance.
We also take the processor to 4200 MHz with 1.5v on the CPU, when 100% stressed the CPU would reach roughly 61~63 Degrees C. That for a heatpipe cooler, is just downright impressive. Please bear in mind that the 1.5 volts we used is high for a 4200 MHz CPU clock. Typically 1.35~1.4v would be fine as well. We use a slightly higher voltage to show you that the cooler can cope with the additional heat coming from the CPU.
What we can conclude here is that the thermal dissipation, or even better stated, the cooling capacity under high stress, is very good.
We also like to note that the difference in-between performance and silent mode is slim, as such we recommend you just to go for better noise levels and install that resistor wire.
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.