Wha?

G

gjpeterson

New Member
Well. I'm looking to buy a nvidia 7800 gtx...problem is my power supply does not meet the 400 watt req. So obviously I need to get a new power supply for the video card. And as I was looking at the requirements for the 7800 gtx I noticed that it says you need a power supply with 12V current rating of 26A or more...I'm dumb. I don't really know what that means and as I looked at psu's that said things like "+12V1@14A, +12V2@15A" I found myself wondering if the two +12v combined to meet the 12V current rating of 26A or more or if you have to find a psu that has the 26A on only one rail...so if anyone could help me that would be wonderful. Oh and if its at all possible and anyone knows could you show me an example or two of power supplies that would meet the 12V current rating of 26A or more requirement?

Thank you.


Oh yes, I don't know how much it matters but my computer apparently wont take psus over 450 watts...hope that doesnt mess things up.

Thanks again.
 
Hey

What Nvidia is referring to is the combined Amps. If the other were true, you would need to get an amazingly good PSU at a really high price. It would be best obviously to use the stronger 12V rail for the 7800GTX. Now you asked for some examples which could work and here are two (SLI ready):

Antec Truepower 2.0 550W
http://www.newegg.com/Product/Product.asp?Item=N82E16817103932

OCZ PowerStream 520W
http://www.newegg.com/Product/Product.asp?Item=N82E16817711002

Obviously, there are many more great brands like Enermax, Fortron etc...

JAN :D
 
Last edited:
thank you.

Hay man thanks alot. Well another question then. What's a good 400-450 watt psu that would go along with the 12V current rating of 26A? I really don't know a whole lot about hte world of psu's what are some of the better brands?
 
gjpeterson said:
Hay man thanks alot. Well another question then. What's a good 400-450 watt psu that would go along with the 12V current rating of 26A? I really don't know a whole lot about hte world of psu's what are some of the better brands?
Click to expand...

Hey, as I have mentioned above, I would look for brands like ANTEC, OCZ, ENERMAX, FORTRON and possibly even AKASA.

I would recommend you to have a look at Praetor's PSU 101 which is the best guide that you could wish for regarding PSUs:

http://www.computerforum.com/showthread.php?t=10764

Now here's a good example of a 450W PSU:

http://www.newegg.com/Product/Product.asp?Item=N82E16817103936

However, if I were you I would still want more amps than most 450W supplies have. Have a look at the PSU 101 recommendations.

JAN :D
 
Last edited:
Hehe

gjpeterson said:
Well what do you think about this?

www.newegg.com/Product/Product.asp?Item=N82E16817104954


Is a 50 dollar 450 watt power supply a crappy power supply?
Click to expand...

That is what I would call a good PSU....and on top of its features and ratings, it's a Fortron, so definitely not crappy. In fact, Fortron makes some of the best PSUs and the quality, from my personal experience is great. It has 36Amps on the combined 12V rails which is very good and will work great.

JAN :D
 
Last edited:
yeah it looked pretty good and the vast majority of people reviewing it said it rocked and I really can't complain about hte under fifty bucks. Oh lord after replacing the damn psu in my computer my girlfriend is borrowing, I really can't complain about just shy of 50 bucks.

But thank you very much for the aid. I can't say how much I appreciate it.
 
Really dumb question...I was under the understanding for some reason that this had the PCI Express supplementary power connector, does it not?

The only reason why I ask is that in the connectors sections it doesnt list the PCI express sup. power connector....yet it says pci-e in the title for some reason.
 
Last edited:
Hey

I am almost sure that when they list PCI-Express, they do mean that the supplemental PCI-Express power connector exists. I would not worry about it anyway, as most PCI-Express cards requiring supplemental power will come with an adaptor just in case you do not have it. Good luck :)

JAN :D
 
You must log in or register to reply here.
Back
Top