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vert305
10-09-05, 05:39 PM
i have a ky-520atx 420 http://www.targetpcinc.com/Details.asp?Res=5&ItemID=2636 that is a link to its specs and pic

pretty cheap i see to, it came with my case ... so anyway .. i currently have a 9800 pro 256mb running now .. i am upgrading it to a 7800GTX will my PSU be able to handle the power?

upgrade 7800GTX and one more stick of OCZ 1gb .... 2gb total

keith33
10-09-05, 06:05 PM
Your computer will be more unstable than a woman on her special day. :)

You'll need a power supply with at least 24-25a on the 12v rail to run a Geforce 7800GTX with a decent CPU and room for a few drives. As long as you're getting a new PSU, you might as go for 30a for some headroom. It might cost around $100 though.

Roliath
10-09-05, 06:07 PM
13A on the +12v!!
That's a no no..Buy a better PSU.

vert305
10-09-05, 06:09 PM
http://www.newegg.com/Product/Product.asp?Item=N82E16817148008

what do you think about this one? good enough? not a bad price and alot of good reviews on it ..

toxikneedle
10-09-05, 06:18 PM
I love cheap PSUs, 600W for $10, YAY!

Tell us how much money you have to spend on a PSU, remember it's not good to cheap out on a PSU

vert305
10-09-05, 06:22 PM
i really dont know how to read PSU specs ... if you can suggest a few good ones on Newegg or something ..

vert305
10-09-05, 06:23 PM
70$ is as high as i would like to go ! ..is that bad?

|MaguS|
10-09-05, 09:28 PM
Yeah your not going to find a very good quality one for that price that will support high end equipment, at that price range your scratch budget setup.

Rytr
10-09-05, 09:43 PM
Here (http://http://www.newegg.com/Product/Product.asp?Item=N82E16817104934) is a good one for $98 shipped.

It supplies the system in my sig. It has provided power to an SLI setup as well as other various system setups both for testing and gaming.
I also have a 550W and 600W Enermax but much more expensive and this one does what they can do.

nas82
10-09-05, 10:07 PM
http://www.newegg.com/Product/Product.asp?Item=N82E16817101111

You do not need to spend $100 for a PSU. The PSU that i just linked you to will provide you plenty of amps to power your system with ease.

Despite not having sleeved wires or a nice paint job or have a flashy light that blinds you, this PSU will serve your every need.

It has 30A(360W) of combined 12v rail amps. Solid quality with silence.

vert305
10-09-05, 10:16 PM
ok cool .. let me ask .. what should i look at that tells me it is a good PSU what are the numbers that tell me its better then the next? also what is a SIG? lol i know thats a newbie question but i just dont know what it means ..

nas82
10-09-05, 10:28 PM
A "SIG" is the guys details about his system after each time he post's something, also known as signature.

What you want to look for is a PSU with 25A or more on the 12v+ rails, now some PSU's will have dual 12v+ rails, with lets say 12v1 15a and 12v2 18a, you can not just simply add these two rails an d see how much amps you have on the 12v rail.

Most quality units will provide you the amps plus the amount of wattage the 12v rail provides, thus telling you the actual amps.

Now the 3.3v and the 5v rails no less than 20a and having more than 30a on these rails are worthless, so between 20a and 30a on the 3.3v and 5v rail.

Ignore the other numbers, they aren't important.

The PSU i suggested would be perfect for you.

vert305
10-09-05, 10:50 PM
Thanks man your helping me out alot .. but just to say i have a ATX midtower (Thermaltake Tsunami) would that PSU even fit my case?

plus the wires look really long on that .. wire mang. would look to be a big issue

nas82
10-09-05, 11:01 PM
Any quality PSU will have longer wires than the cheapy.
Yes, it would fit, I don't see why it wouldn't, it's designed for mid-towers.

Plus, i use one in my mid-tower, but actually i use the higher wattage one.

vert305
10-10-05, 02:49 PM
OK OK >. HERE IS WHAT I CAME UP WITH !!! trying to keep the price DOWN!

let me know what you guys think and what would you go with!

1. ntec TruePower 2.0 TPII-550 - power supply - 550 Watt (for SLI).
i have found this one for $83.00 shipped!

http://www.newegg.com/Product/Product.asp?Item=N82E16817103931 here are the specs and reviews


2. COOLER MASTER Real Power RS-450-ACLY ATX12V 450W
i have found this one for $65.00 shipped

http://www.newegg.com/Product/Product.asp?Item=N82E16817171001

i have read a few reviews on this power supply.. it should support the 7800GTX with no prob. also comes with a silly little metter .. but im not buying it for that.

There is a $18.00 differ b/w the 2 PSUs


what would you go with ...


My rig!

ATX MIDTOWER (Tsunami)
2Gb OCZ (2 X 1Gb)
7800GTX
2 HD 250GB
and some other things to ..

nas82
10-10-05, 03:06 PM
Don't even think about the cooler master, it only has 22A on the 12v rail. Plus it's not that good.

Antec would be your only option.

So i assume the one i suggested is out of the question? I assume because it doesn't "look" good.

vert305
10-10-05, 06:40 PM
Well a big thing that led me to the 2 PSUs were the reviews on how little noise they made... the one i have now looks just like the one you selected and its noisy as hell .. the small fan on it kind turned me off...

The Ntec's 120mm fan is looking real nice 2 me..lol
but the differ in price is only $20.00 b/w it and the one you selected .. so i think i will go with that one

but i do have to say thank you.. i now understand alittle more about psu's .. thanks for all your help!

Roadhog
10-10-05, 06:50 PM
I was looking at getting a Seasonic S-12 600W. I heard its a good psu, so maybe you might like it. I think you can get it for $140 USD, so thats not to bad of a price.

It also has dual 12v rails with 18amps each, and a high efficiency

nas82
10-10-05, 11:09 PM
Well a big thing that led me to the 2 PSUs were the reviews on how little noise they made... the one i have now looks just like the one you selected and its noisy as hell .. the small fan on it kind turned me off...

The Ntec's 120mm fan is looking real nice 2 me..lol
but the differ in price is only $20.00 b/w it and the one you selected .. so i think i will go with that one

but i do have to say thank you.. i now understand alittle more about psu's .. thanks for all your help!

Actually, almost $30 more than the one i selected.

Also, here is a review of the unit i suggested. http://www.slcentral.com/dual-12v-psu-shootout/page3.php

I'll also say it, it is a very silent unit. The loudest thing in my system is my GPU fan, and even that is hardly heard.