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The
attention to detail ePower Technology has put into this power supply is obvious
with many aspects such as the individual drive/accessory power leads. Care and
time have been spent to twist each of the four wires into an almost loom like
pattern to try and keep cable clutter to a minimum. To further reduce clutter,
The Cheetah has a reduced number of power connectors to meet the most popular
demands of the modern enthusiast. There are only two main power leads with three
Molex connectors and two floppy style connectors on each, for a total of six
Molex and two floppy.

Since
Serial ATA hard drives have become so popular, most modern power supplies now
feature dedicated power connectors for those drives. Placing these connectors on
their own power lead helps to reduce wire routing and length problems. The fact
that there are only two connectors is somewhat disappointing, but then again not
many computers have more than two SATA drives installed in them anyway. From the
cable clutter issue, wires you're not using have to be stowed and by only
including enough to use, you won't be stowing any. Speaking of wires that AREN'T
included, the old set of 12Volt Auxiliary connectors (the long flat one) that
were re-introduced on some Pentium-4 board (RDRAM capable) are not included with
this power supply either. If you're still using a motherboard with that kind of
connector, it is time to consider an upgrade anyway!

Most power
supplies do offer some type of loom wrap over the large ATX connector but ignore
the 4-pin auxiliary line. ePower has taken the time to include the same
attractive UV reactive wrap over this connector as well. The other connectors
seen in the above picture are "FAN ONLY" power connectors meant to be connected
to case fans. There are three Molex and three "3-pin" connectors for either/or
case fan power connection. These fans connectors are part of the "Top Silent"
technology set in place by ePower.

Now this is
just cool! A little redundant to call it a Hard Disk drive connector since the
power supply also has SATA power connectors on it. Since most high-end video
cards now have a Molex power connector, we know exactly where the enthusiast
will be plugging this. Also wrapped in the reactive UV loom, this particular
connector also has an iron loop around near the Molex connector to further
reduce EMI emissions. I know I've already said it, but the attention to detail ePower has put into this power supply is outstanding.
TESTING
Now that I've established that The
Cheetah certainly looks cool, it's time to prove that its worth installing into
your computer. To test this unit, I will be installing it into a Cooler Master
ATC-201B-BXT enclosure. For those of you not familiar with it, it is a pre-mod
case with a side panel window mod and a "blow hole" on top. Two 80mm fans up
front, one 80mm out the rear and the top blow-hole has an 80mm fan in it also. All
of these fans are STOCK and rated for approximately 36 CFM. The power supply
will be bringing juice to an Asus P4C800-E Deluxe motherboard with an Intel
Pentium-4 2.8"C" overclocked to 3.5GHz. A Sound Blaster Auidgy-2 sits in a PCI
slot and an ATI Radeon 9800Pro will be connected to the power supplies "VGA"
connector. A pair of Western Digital Raptor hard drives will utilize the SATA
connectors with a Plextor: PlexWriter Premium and DVD multi-format PX-708A drive
along with a TEAC DVD-ROM hogging up 3 more Molex connectors. Oh, let me not
forget the 3.5 inch floppy drive too. To round off the case mod angle, I'll have
a conservative light array plugged in that consists of 4 CCFL tubes along with a
CCFL case badge.
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Taking a
sample of the voltage sensor at idle reveals what I believe to be a little bit
of Asus Fudge because the P4C800 series boards are known to have some voltage
saturation issues. The -12V and -5V rails are WAY off course and the +12V rail
is just a little low. The vCC voltage is set to 1.60 in the BIOS for the
overclock and comes in at .03 volts over.

Using the
Hi-Lo feature of Motherboard monitor, I tracked the voltages throughout
different stages of system use. Voltage levels remained within specification,
but I have an issue to expand upon. With the power supplies FAN ONLY connectors
providing power to the chassis intake/exhaust fans, the fans were nice and quiet
but I encountered system instability during extended game-play sessions with
games like: Generals Zero Hour and Battlefield: Vietnam. I had a digital
thermometer's sensor positioned to record exhaust temperature from the chassis
fan. This was reading only 98°F degrees while the internal thermometer was
nearing almost 120°F. When I moved the probe to the power supplies exhaust fan
port, the temperature reading jumped to 125°F. In an overclocked scenario,
especially with a high end video card in the AGP slot, the FAN ONLY headers to
not allow the fans to spin up to a speed high enough to provide adequate
ventilation. After replacing the chassis fans with normal full-power connectors,
internal temperatures returned to normal and system stability was returned to
100%.
CONCLUSION
There is a LOT to like about this power
supply, starting with the great looks. UV wrap on all the major cables, and a
nice twist in the wires of the drive/device power leads adds a unique look that
separates itself from the rest of the power supplies on the shelf. The window
mod in the chassis of the power supply, though very nice looking, isn't viewable
in some enclosures that don't have full window mods in the side panels, or that
have a support structure around the power supplies mounting point. The voltage
supply is clean enough to support overclocking operations in a PC rigged for
gaming. While the FAN ONLY header ports are a great idea to reduce fan noise, I
can NOT recommend using them due to the heat choking that was exhibited during
my testing routines. Had the FAN ONLY headers reacted better to the increase in
temperatures then the performance rating would have been much more favorable.
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Club
Overclocker Rating |
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Innovation: |
9.5 out of 10 |
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Performance: |
7.0 out of 10 |
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Quality: |
9.5 out of 10 |
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Stability: |
9.0 out of 10 |
|
Overclocking: |
NA |
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Software Pack: |
N/A |
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Value: |
8.0 out of 10 |
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Overall Rating
8.5 |
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Skill Level |
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Project Skill Level
(10 being hardest) |
3
out of 10 |
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