Coolermaster Jet 4 ICB-V83 Pentium 4 Heatsink Review
that Coolermaster's Jet4 heatsink measures in
at 136mm tall, and belts out almost 60 dBA at full speed, you can bet
that overclockers are lining up for it... For the rest of us, it's a good
thing that Coolermaster equipped the ICB-V83 Jet4 with a fan speed controller to quiet things
down. Dial up the speed of the squirrel cage fan for heavy duty cooling, and
when quieter times are needed, dial down the speed to 1900 RPM and relax in moderate
noise levels of about 45 dbA the Jet4 produces.
Squirrel cage fans have an added bonus in that the dead spot normally found
under a standard fan is not an issue. The way the fan works, a steady stream of
air is exhausted down into the heatsink providing excellent airflow at the outer
edges and center as well.
The Coolermaster ICB-V83 Jet4 looks like a miniature
aircraft engine, and comes with a small potentiometer hardwired directly into the
squirrel cage fan hidden behind the chrome. The potentiometer enables
you to manually adjust fan speed between 1900RPM-3500RPM. The upside to this configuration
is that we can tune the computer to be as noisy or quiet as
desired. The downside is that this is not a dynamic adjustment - meaning that if
the computer is put under load and the processor thermals increase, the heatsink
won't automatically compensate and kick up the fan's RPM.
Still, it is better than having a fixed speed fan grinding away all night
like a vacuum cleaner on speed.
fan draws quite a bit more current than a typical vaneaxial fan, and
so power is pulled from a standard molex pass through connector instead of the motherboard fan header. A separate
three-pin jack plugs into the motherboard to deliver the single RPM signal so online ran
monitoring software doesn't assume your processor is seconds away from thermal
Along with the Coolermaster Jet4 heatsink comes a 3.5" aluminum bay cover, and standard
steel expansion slot PCI bracket so you have your choice of where to mount the fan-speed controller.
The fan-speed potentiometer has lead wires that are about 19" long, so the user can control
the fan speed without cracking open the case to poke around inside.
If you have
an aluminum case, you'll be pleased to see that the 3.5" aluminum bracket is
tastefully done, and should fit in nicely. By mounting the dial on
the PCI bracket you can put the fan speed controller in a less obvious location at the
rear of the PC. However, since the potentiometer is not removable from the heatsink, it
has to go in either one of these locations.
the most noticeable aspect of the Coolermaster Jet4 is the
jet engine like appearance it has. With a heavy dose of chrome,
this baby looks pretty damn fine, although you're going to need a case window to take
full advantage of its good looks. The rear of the fan even has a little
embedded red LED, to give that engine look extra credence.