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28.07.04, 04:11
Power Supply
Recommendation: OCZ Power Stream 520W
The first thing that most overclockers learn is that the power supply does
matter, because the first wall most overclockers run into is the inadequate
power supply that came with their white-box computer. Overclocking demands
much more of a computer system than running the system at stock speeds. If
you think a Prescott at 3.4Ghz demands wattage, then you quickly realize a
Prescott at 4.0Ghz demands even more power. The same is true of video cards.
If a 6800 Ultra Extreme demands a decent 470W power supply, then you will
need even more power when you overclock that 6800 Ultra to higher GPU and
memory speeds.
You also quickly learn that all power supplies are not created equal. Most
power supply ratings are combined ratings, as regular readers have learned in
Power Supply reviews at AnandTech. This means that as some of the power
supply rails are driven, other rails drop in power, and may end up supplying
less than ideal power under stress. The very best power supplies individually
control the power rails. They, therefore, usually handle the stress of
overclocking much better than a PS with a combined rating. These are the
power supplies that are most coveted by overclockers
A superb example of a power supply geared to overclockers is the new OCZ
Power Stream 520. It was designed from the ground up for overclockers, and
features individual rails that are even tweakable for higher output or exact
values. There are even LEDs on the rear of the black chrome case that tell
you if the PS is operating in spec, under spec, or over spec. These same LEDs
can even be used to tweak individual rails for optimum power.
520W sounds like a lot of power and it is, but truthfully, this power supply
would probably be rated at 700 watts by a manufacturer who was trying to
impress with specs.
The 520W rating is conservative and this PS can easily handle almost anything
an overclocker wants to throw at it. While the OCZ Power Stream are new to
the market, they have quickly become favorites of the extreme overclocking
community.
You will also find a stock 24-pin ATX power connector that will work with the
new Socket 775 motherboards and servers, as well as a 24-pin to 20-pin
adapter to use with motherboards requiring a standard 20-pin connector. There
are also extra long SATA and 4-pin Molex connectors to power anything you
might put in a full tower case or the CM stacker, as well as special heavy
duty cables for the demands of hard drives and the latest high-end video
cards. You can find out more about the Power Stream power supplies at the
Power Stream product page.
www.anandtech.com/guides/showdoc.aspx?i=2138&p=13