ZALMAN CNPS6500A-CU HSF Cooler Review
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Picking out the right heatsink can be fairly tough, especially if you want to overclock your PC and still have a nice quiet system. If you see yourself stressed over finding a good quality heatsink that can handle an overclocked system and remain fairly quiet, then Zalman would be the heatsink you’re after. Today we have the Zalman CNPS6500A-Cu to test out, and see if it can carry out what it’s made to do.
Manufacturer: ZALMAN
Price: $50.00
Availability: Now
Reviewed: poiuy223
Edited by: SPeeD
INTRODUCTION:
Picking out the right heatsink can be fairly tough, especially if you want to overclock your PC and still have a nice quiet system. If you see yourself stressed over finding a good quality heatsink that can handle an overclocked system and remain fairly quiet, then Zalman would be the heatsink you’re after. Today we have the Zalman CNPS6500A-Cu to test out, and see if it can carry out what it’s made to do.

ZALMAN INFO:
A little information about Zalman products before we move on to the details of the CNPS6500A-Cu:
1.) Zalman's CPU Coolers do not generate noise and vibration in Silent Mode.
2.) The heat dissipating material of the Flower HeatSink (FHS) is Pure Copper.
3.) Separation of the FHS from the CPU fan prevents transfer of the fan's vibration to the CPU.
4.) By utilizing a 92mm fan, both the CPU and the motherboard chipset are cooled.
5.) The cooling fan can be mounted at any desired location, making it compatible with virtually all computer cases and motherboards
(Note: computer cases that have the power supply covering the CPU can not be used).
6.) With the included adjustable fan speed connector, the user can freely adjust the CPU fan's RPM.
7.) CPU can be cooled to a temperature sufficiently below the temperature required by the CPU manufacturer in Silent Mode.
8.) Zalman's CPU Coolers enable very stable operation of a CPU in an OVERCLOCKED environment.
| Zalman's CNPS6500A-Cu coolers have extended heat dissipating area and include a new fan assembly (FB123) with an adjustable bracket and a bigger fan for maximum cooling performance. The FB123 fan assembly can be positioned to provide optimal cooling in almost any motherboard/standard case configuration and allows an additional fan to be installed for cooling a NP(Noise Prevention) VGA Card. |
Zalman labels all their heatsinks with “CNPS”. What does “CNPS” stand for you may ask? “CNPS” stands for “Computer Noise Prevention System”. Zalman’s main goal in the computer business is to make your computer completely silent. They make CNPS CPU heatsinks, northbridge and gpu heatsinks, and power supplies. Checking on the Zalman site gives you their suggestions of hard drives for complete noiseless systems.
CNPS6500A-Cu:
The CNPS6500 comes in a couple of flavors. There are two variations with heatsink material—the aluminum copper hybrid or the pure copper. Then there are two variations in mounting system—through the motherboard holes via screws or with the use of the socket 478 heatsink bracket that comes with all motherboards. We were fortunate enough to receive the CNPS6500A-Cu. The “A” denotes the mounting system, which in this case, was mounted through the motherboard holes. The “B” would mean that the heatsink mounts through the use of the socket 478 heatsink bracket. The “Cu” denotes that the heatsink is all copper while the “AlCu” denotes the aluminum copper hybrid.
The Zalman CNPS6500A-Cu comes neatly shrink-wrapped in a cardboard box. The heatsink itself is massive. The fins spread out like a flower design. Heh, I guess that’s why they call it the flower Zalman for short.

Looking closely, you’ll be able to see “Zalman” written across the copper fin.

Opening up the package reveals the mounting parts, a 92mm fan, the fan bracket, installation instructions, a small tube of white grease, the Zalman fanmate (adjustable fan speed connector), and a bag of extra screws.

The bottom of the heatsink is fairly shiny and smooth. What I found most interesting about this heatsink was the copper base. Instead of having a copper block as the base and soldering all the fins to the base, the base is made of separate fins connected together. I figure it should prove pretty useful when transferring heat. The heat will go directly to the fins. The heatsink weighs a hefty 914g. According to Intel, the maximum weight for a heatsink is 450g. That’s more than twice the standard! Luckily this heatsink installs through the motherboard holes and should be pretty stable after installation.

FAN:
The 92mm fan that comes packaged with the heatsink is rated to run very quietly. In normal mode, it only produces 33dBA. In silent mode, it produces a measly 20dBA. There was no real point in running the fan in silent mode as the normal mode is already pretty much silent. I could hardly hear a thing. I think my power supply was louder than the heatsink fan. Attaching the fanmate and powering the fan to max speed produced more CFM but sacrificed quietness. The fan could be heard but it’s definitely not annoying. And DEFINITELY no Delta.

Next: Testing and Conclusion page 2 >>
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