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Can i use a seperate PSU to power a GTS250 - Page 4

post #31 of 54
Quote:
Originally Posted by Speedster159 View Post
GETTING CONFUSED!!

Really getting confused on what to do..
The longer you keep asking the more you will hear "buy a better PSU". This is OCN, we dont like to see those low quality units but like I said, it will work on the 600w. Having a higher quality PSU = less chance of breaking your computer
    
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post #32 of 54
To summarize the thread responses. Get yourself a good PSU as soon as you can afford it. The sooner the better. There is a for sale thread here on OCN. There may be some inexpensive used but good PSUs there. Check it out.
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post #33 of 54
Quote:
Originally Posted by Defoler View Post
I'm using dual PSUs.
Its no problem power other cards or fans or anything with a second PSU.
But if you main PSU is enough, just get a molex to 6-pin connector, or get from one of your friends who has a newer card (almost every card nowadays comes with a molex to 6-pin or 8-pin cable).
The GTS250 barely takes any power. More like 150W, so a 300W PSU should be more than enough.

About a 300W not giving 300W but 200W, its a bit odd thing to say.
Even an old tired 300W PSU, as long as its ok, will give a lot more than 200W.
It will not be very efficient, or it will ripple a bit, but not enough to cause any issues with the gts250.
Well your using 2 PowerSupplies because your running Quad 480's. A 980x and a ***** load of other stuff.
post #34 of 54
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post
1.) That Apex PSU is a piece of crap and you should NOT run any computer on it PERIOD. Kill it with fire and spend more than $10 on your next PSU. The Radius2 is also a piece of crap. The AGI (HEC) is slightly better, but still pretty poor.


2.) Most power supplies under $70 and all cheap generic PSUs use what's called group regulation, where +12V and +5V share the same regulation coil. This means if you have a heavy load on the +12V, but none on the +5V (like when running a graphics card) the +12V voltage will drop and +5V voltage will spike. +12V may drop as low as 11.2V on a poor design if no +5V load is present. ATX specification requires +12V be above 11.4V; I have observed instability in systems when +12V goes below 11.6V.

3.) Crap PSUs (which seem to be what you're working with) are simply dangerous to run, because in addition to crap voltage regulation they can provide out of spec ripple (microsecond fluctuations in voltage) which can damage components, and if a crap PSU fails it's unlikely that it has the necessary protections to prevent your system from being totally fried.



Summary: DON'T DO IT
This
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post #35 of 54
Quote:
Originally Posted by Speedster159 View Post
Hmmm...

How about get the card first and hope for the best, and get the PSU when i get the cash..
That's like saying:

I think I"m gonna put this lit cigarette into this here half full gas canister, and hope it doesn't catch fire or explode .

Seriously, get a quality PSU before you worry about your GPU. You can ALWAYS add a GPU later. Those things never go out of style. But you can't replace hundreds of dollars worth of hardware (as easily) because your PSU blew up and took something with it.

Seriously, spend more on the PSU. Buy the GPU later. Your rig will thank me.
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post #36 of 54
WHERES PHAEDRUS?????? Hes usually in here wanting to choke me by now, same thing with smokinwaffle, they hate me, and if i ever post another thread like this then theyll hunt me down and kill me. 99% sure.
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post #37 of 54
Quote:
Originally Posted by Kirby1 View Post
The longer you keep asking the more you will hear "buy a better PSU". This is OCN, we dont like to see those low quality units but like I said, it will work on the 600w. Having a higher quality PSU = less chance of breaking your computer
False. It's probably no more than a 300W at best.
post #38 of 54
Quote:
Originally Posted by Phaedrus2129 View Post
False. It's probably no more than a 300W at best.
You've reviewed your fair share of Antec PSU's in the past. What about the VP450 that I found on his site that he buys from? I can't come up with any information on it, but its the best thing I could find that was anywhere near his budget.

And the sticker on his 600w shows 216w PEAK power on the 12v rail. I wouldn't trust that to power any modern machine honestly.
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post #39 of 54
Here's the solution. The only sane thing to do. Throw out the Apex PSU, the Radius2 PSU, and the AGI PSU. Smash them with a sledgehammer, or sell them for P500 each. Then buy a quality ~400W PSU for P2000-P3000.
post #40 of 54
Quote:
Originally Posted by pioneerisloud View Post
You've reviewed your fair share of Antec PSU's in the past. What about the VP450 that I found on his site that he buys from? I can't come up with any information on it, but its the best thing I could find that was anywhere near his budget.

And the sticker on his 600w shows 216w PEAK power on the 12v rail. I wouldn't trust that to power any modern machine honestly.
Agreed on the 600W.

The VP450 is going to replace the BP line, but it isn't available in the States yet and hasn't been reviewed.
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