Posted:2006-04-13 By harwdare review Number of View:10203
ZIPPY EMACS PSM-6600PE (600W) -
ZIPPY EMACS PSM-6600PE REVIEW
By :harwdare review
Posted:2006-04-13
xtreview is your : Video card - cpu - memory - Hard drive - power supply unit source
Zippy Emacs PSM-6600PE (600W)
and here is the last psu in our round up this is from Zippy Emacs
Zippy Emacs PSM-6600PE (600W)
Although this is the topmost model of the Gaming Power series, it looks even more like a server power supply than the HP2-6500PE: an unpainted
steel case, a punched-out fan grid, lack of any auxiliary elements – there is
not even a power on/off switch here. That’s not how we’ve come to think of an
expensive power supply for a home PC. Well, you cannot admire the beauty of a
highlighted PSU fan anyway unless you have a system case with a transparent
panel, so why spend extra money for it? Let’s better talk about things that are
really important. I mean the parameters of this power supply.
Zippy Emacs PSM-6600PE (600W)
Zippy Emacs PSM-6600PE (600W)
Zippy Emacs PSM-6600PE (600W)
This model differs internally from the 500W model, although they are based on
similar platforms. The PSM-6600PE uses an ML4800CP chip, too, as the main
controller.
A steel bracket with a gray insulation on top is fastened to the heatsink
with the diode packs. It drew my attention, but I could find no purpose for it
other than providing more mechanical robustness to the PSU. It cannot take any
great part in cooling the PSU since its thermal conductivity and the thermal
conductivity of the PSU’s panel it borders upon is too low.
Zippy Emacs PSM-6600PE (600W)
The specification says the allowable load on the +12V rail has grown more in
comparison with the previous model than the total wattage – by 120 watts, to be
exact. The load capacity of the +5V rail has diminished to 30A, but you
shouldn’t worry about that. As I have repeatedly said in my reviews, modern
computers do not consume much power from the low-voltage rails anyway.
The PSU offers the following cables and connectors:
Mainboard cable with a 24-pin non-splittable connector; 52cm
Cable with a 4-pin ATX12V connector; 56cm
Cable with an 8-pin EPS12V connector; 55cm
Two cables with 6-pin graphics card connectors; 60cm each
Two cables with two SATA power connectors; 70cm+20cm
One cable with a Molex connector and one floppy mini-plug; 55cm+20cm
Three cables with two Molex connectors on each; 55cm+20cm
So, like with the HP2-6500PE, there are all the necessary cables present, but
you’ll have to use an adapter if you own an old mainboard with a 4-pin CPU power
connector.
There is no plastic ring around the wires where they go out of the PSU case.
Some users have reported they have seen wires losing their insulation due to
such design, but I do not think this is a really big problem. It’s really hard
to cut the thick and durable insulation with a smooth rolled-in metal edge of
the PSU case.
The cables are all hidden in plaited tubes.
The cross-load diagram for this power supply is a treat to my eye. Featuring
independent voltage regulation, the PSU never allows any output voltage go out
of the acceptable range. Moreover, the output voltages do not deflect by more
than 2% from the nominal value, the allowable deflection being 5%! That’s an
excellent performance, among the best results I’ve ever seen in my tests.
At full load (600W) the output voltage ripple was 22, 50 and 15 millivolts on
the +5V, +12V and +3.3V rail, respectively. The pulsation spectrum differs: only
high-frequency pulsation on the +5V and +3.3V, and mostly low-frequency, 100Hz
pulsation on the +12V (the lower oscillogram).
When working with an APC SmartUPS SC 620, the UPS would indicate overload at
a load of about 365W (AC power source) and 250W (when switching to the
batteries). The result is 70W worse than that of the previous model. So when
there was a load of 250W on the PSU, the UPS’s overload protection woke up when
switching to the batteries and the UPS shut down the computer.
The PSU is rather quiet at power loads of 250W and less (but I can’t call it
silent because the hiss of the air is distinctly heard; most PSUs with 120mm
fans are much quieter). When the load goes up, the PSU is not just noisy, but
actually loud.
To make it clear, I’ve got two regular system cases on my desk and four
powerful fans (two 92mm Thermaltake and two 80mm Delta Electronics) to cool the
testbed. This arrangement isn’t very quiet even in the big room where there are
a few more people and half a dozen more computers besides myself and mine. And
the PSM-6600PE managed to make itself heard and prominent above everything else
with its irritating loud high-frequency hiss of its fan! By the way, a Sanyo
Denki SanCooler 80 fan (part number 9A0812S402) is installed in it.
The PSU is as efficient as the HP2-6500PE (about 84% at the maximum), and its
power factor is higher at 0.99.
So, the top-end model in the Gaming Power series leaves an ambiguous
impression. It really has excellent electrical parameters like super-stable
output voltages, good efficiency, low voltage ripple at high output power, but
it is so loud at high loads that I doubt you’d want to use it not only at home
but even in office. The problem is not about the noise as such, but about its
spectrum, which is shifted upwards and is thus distinguishable against the
common chorus of PC fans. It is really annoying for the human ear. You can also
encounter problems using this power supply with an UPS. I’d recommend a
high-power and high-quality UPS for this power supply for the switching-over to
the batteries was done correctly.
On the other hand, the noise factor becomes less important if we talk about a
powerful gaming machine with two graphics cards. Few people who own such
computers do anything to improve their cooling while the stock coolers of modern
top-end graphics cards are generally rather noisy. In this case, the excellent
electrical parameters of the PSM-6600PE may outweigh its noisiness.
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