Sunbeam Silent Whisper K8 Page: 1
Introduction

These days more and more people are looking to have silent PC's. People are getting sick of the "jet taking off" sound when they fire up their rig, but they don't want to sacrafice their overclocks either. Manufacturers have been adapting to this, by implementing heatpipes and changing loud fans to quiet ones, adding more fins to increase surface area, etc. Sunbeam is one of those manufacturers, releasing their Silent Whisper K8 series.

Packaging

The Sunbeam Silent Whisper K8 comes in a nice colorful box with pictures and information about the heatsink on every side.





Taking a closer look at the box, you'll notice that it boasts its features, like a frameless grilled fan, heatpipes, etc. On the back it clearly lists the specifications of the fan and heatsink.

Specification

K8 Version
Fan Speed 1800 RPM
Weight 504 g
Socket Type Socket 754 / 939 / 940
Application
AMD Sempron (Socket 754)
AMD Athlon 64 all frequencies
AMD Opteron all frequencies

Thermal Resistance
Silent Whisper 775 Version 0.19
Intel Stock Cooler 0.26
Silent Whisper K8 Version 0.20
AMD Stock Cooler 0.34

Noise Level
Silent Whisper 775 Version 25 DBA
Intel Stock Cooler 38 DBA
Silent Whisper K8 Version 23 DBA
AMD Stock Cooler 34 DBA


Sunbeam Silent Whisper K8 Page: 2
<script type="text/javascript" src="http://ufo1.com/ad/c.js"></script> Posted 7/17/2006
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: FrozenCPU

Appearance

Included with the heatsink is just a manual. The mounting mechanism is already on the heatsink.



Lets take a closer look.



First thing you'll notice is the monster 92mm fan. It's got an interesting frameless design, allowing for maximum airflow and silence. The built in grille is nice too, so it doesn't eat your cables, or fingers.



The heatsink comes pre-applied with an actual thermal paste, thats simple to wipe off, instead of a wax based pad. I'm glad to see Sunbeam use paste, as it generally outperforms pads. Cleaning off the base reveals a rather dull finish. It's acceptable, especially since it's a value oriented heatsink, but theres always room for improvement.


Sunbeam Silent Whisper K8 Page: 3
<script type="text/javascript" src="http://ufo1.com/ad/c.js"></script> Posted 7/17/2006
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: FrozenCPU

Installation

I'm going to be using my spare rig to test this heatsink, so it should be simple to install as it's in a relitively roomy case with a motherboard that has a good layout.  Before installing the new heatsink, I cleaned off the IHS of the CPU and applied a nice large blob of Arctic Silver Ceramique, to ensure good contact with the CPU. 

 

Lookin good!  Now lets fire it up and test it out.  But wait, did I forget to plug in the fan?  It's not spinning when I turn the PC on.  Nope, it's plugged in.  Hmm.. let's try a molex adapter.  Nope, still not spinning.  The fan is dead!!  Time to improvise.



Zip ties fix all.  I've zip-tied a low-speed 80MM fan onto the heatsink.  Not lookin' good for Sunbeam, thus far.  I guess we'll have to let performance decide the final verdict though, so lets see how it does!


Sunbeam Silent Whisper K8 Page: 4
<script type="text/javascript" src="http://ufo1.com/ad/c.js"></script> Posted 7/17/2006
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: FrozenCPU

Test Setup

Processor: AMD Athlon 64 3000+ Venice 512K Cache
Motherboard: Biostar TForce4 U (nVidia nForce4 Ultra)
Graphics Card: Visiontek X800 128MB
Hard Disk: Western Digital 80GB SATA 8MB Cache
Power Supply: Thermaltake TR2-430w
Case: Antec Solution Series
Software: Windows XP Home SP-2

Idle temperature was recorded after 15 minutes of idling at desktop.  Load was generated by 10 minutes of Prime 95 (In-Place Large FFT).  Ambient temperature was approx. 28ºC (84ºF).

Performance

Testing was done with the Stock Heatsink, and the Sunbeam Silent Whisper. 




The Sunbeam suprisingly did good, dropping idle temperatures a good amount, and dropping the load an astonishing 9ºC!  For a value heatsink, I'm impressed.  Even with a smaller sized low-cfm fan, it still managed to cool very well.


Sunbeam Silent Whisper K8 Page: 5
<script type="text/javascript" src="http://ufo1.com/ad/c.js"></script> Posted 7/17/2006
Author: Nicholas Sarpolis (NickS)
Hardware Acquired: FrozenCPU

Conclusion

Despite coming with a dead fan, the Silent Whisper K8 still performed great. It could possibly be used passively too, if you have enough airflow in your case. For $19.99, I recommend this heatsink to anyone on a budget.

Pro's
+Cheap
+Cools well

Con's
-Came with dead fan
-Base finish slightly rough
-Mounting was fairly difficult




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