psu suggestion?

C

cr8zyboy20

New Member
So I want to upgrade the psu for sli with the same card and run a raid 0. Not sure how much wattage i need? I know there a site out there somewhere that will tell u, but sadly can't find it...
 
Depending on budget go for maybe a 650W/750W Coolermaster. If they are a bit too much maybe an Antec 600W Neopower..
 
It has nothing to do with wattage. I would suggest you need in the realms of 50A on the 12V rail - correlates to around 600W. If you want to then add your additional HDs and future hardware, get a Corsair TX750W. BTW you are currently underpowered.
 
bigfellla said:
It has nothing to do with wattage. I would suggest you need in the realms of 50A on the 12V rail - correlates to around 600W. If you want to then add your additional HDs and future hardware, get a Corsair TX750W. BTW you are currently underpowered.
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If wattage is not relevant, then I'm wondering why graphics card manufacturers will often put a minimum watts rating in the requirements.
 
netrick said:
If wattage is not relevant, then I'm wondering why graphics card manufacturers will often put a minimum watts rating in the requirements.
Click to expand...

Because they are selling the card to Mr Joe Smo who goes into some large brand chain store and says give me a graphics card. With quality brands, wattage is a fairly safe indication, however most people also buy the cheapest PSU they can find within the recommended wattage rating - thus problems.

Also, imagine if that graphics card said instead of "minimum of 450W":

"You require a PSU with a minimum of 48A on the 12V rail, but remember, under most ATX design standards 12V +1 is dedicated to the CPU, so exclude 12V+1 from your calculations, make sure you have sufficient amperage on 12V +2 (unless of course your PSU is EPS 2.91 certified or has the very latest ATX design)."

Can you imagine the shit-fight? The point here is (like SLI certification which also means very little), graphics cards and PSU manufacturers only care about sales. Unlike this forum, which is here to give solid advice.

Said another way -

This 450W PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817709009) has 10A LESS - yes 10A less on the 12V rail than this 400W PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008)

So as you can see here, a 450W PSU that has 10A (33% less) amperage on the 12V rail than a PSU that has 50W less (ie 400W). Wattage is irrelevent.
 
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