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4850, Required PSU

Last response: in Components
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March 17, 2010 7:04:40 AM

Yeah so i bought a Sapphire HD4850 GDDR3 as an upgrade from a Nvidia 9600GSO now i wonder if it would run on this PSU

I have a Jeantech 405W PSU PUFP-405
+5v=20A
3.3v=24A
+12v1=17.0A
+12v2=17.0A
-12v=0.3a
+5VSB=2.5A

Thanks in advance

More about : 4850 required psu

March 17, 2010 7:50:46 AM

The recommendation from the manufacturer is a 450 watt or greater power supply. It might work but I wouldn't count on it working for long. Also, I've never heard of jeantech sounds like an offbrand PSU (correct me if I'm wrong). I would recommend something like this: http://www.newegg.com/Product/Product.aspx?Item=N82E168.... A good power supply is a necessity, cheap PSUs with heavy loads are known to cause major problems.
a c 248 ) Power supply
March 17, 2010 11:58:38 AM

The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency.

A high quality 500 to 550 watt psu will have a +12 volt rail rated at 40 amps. A high quality 700 to 750 watt psu will have a +12 volt rail rated at 60 amps.

In addition the power supply should be at least 80+ Bronze certified for energy efficiency. There are some models available which have achieved 80+ Silver and 80+ Gold Certifications.

Before purchasing a new psu you will need to decide whether you will eventually have a pc with one or two video cards.

Corsair and Seasonic are two of the brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty. Lately we've been seeing a few other brands offering some high quality units.
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