for a 470... i know this is a cheap psu but i dont have the money for a good one at the mo.. i have a [email protected] arctic freezer pro and 1 hdd
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Cic 750w psu be enough?
- Thread starter Renni 95
- Start date
so itl be ok?
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Incorrect, you can't just add up the rails and assume that's the maximum output, it doesn't work like that.
@OP, you need to replace the PSU as that looks like a generic.
Wrong.
Yes you can his maximum output is 24 on Rail1 and 24 on Rail2.
To OP. This guy has no clue your psu WILL BE FINE provided you use both RAILS.
THats where it gets tricky if it only has one single 6pin because you dont know what rail its running on. and which rail you need for the molex connector for the other.
Heres breakdown of my PSU that is running a 580GTX OC fine with 8GB and 4.06mhz quad core.
Bottom OCZ 700W
oh god :S what would happen if i just chanced my luck plugged the 6 pin in used the adaptor on 2 spare 4 pin plugs and pluged them into the 470 - what would happen if i got the same rail as the 6pin? would it just not boot (then i would just try all my 4 pins til i got 1 that worked)
You see I got 2 rails also providing 25A each. Thats a little bit more than yours.
But my PSU has 1 6pin adaptor and 1 8pin adaptor. 1 is running on rail1 and the other on rail2.
Your problem is only got 1 6pin which probably is running on rail1. Now you need to find the rail2 v12 connection.
But your PSU spec wise is absolutely fine.
Dont listen to atiornvidia, he hasnt got a scooby.
But my PSU has 1 6pin adaptor and 1 8pin adaptor. 1 is running on rail1 and the other on rail2.
Your problem is only got 1 6pin which probably is running on rail1. Now you need to find the rail2 v12 connection.
But your PSU spec wise is absolutely fine.
Dont listen to atiornvidia, he hasnt got a scooby.
What would happen?
Probably it would boot, and when your try running some 3d in full speed it would crash.
But, but, but PSU are a tricky subject. Depending on your PSU build some have voltage lockout and might stop it from booting. So I cant guarantee anything.
Easy way to find out is to locate where the cables leave the PSU. Find which cable leads out of the PSU for the 6pin and find 12V cables and see if they are the same. There should be a distinct difference as they both exit the psu from different points.
That.. your a star il have a look tommorow/ open her up
thanks for all your help your a star
Quote from another forum, which is only saying the same thing I've heard many times before:
Absolutely wrong about multi-rail psus now. There were old protection rules regarding 20A long ago. These days most psu makers go way above 20A. Like the Antec HCP-1200 has ocp limits of 30A on it's 8 rails. While the lower power HCP's have OCP at 40a on each of it's 4 rails. Good luck getting over that limit, there aren't enough connectors on each rail to get over unless you're doing something insane. Single rail vs multi-rail does not matter whatsoever now unless you're buying a junk psu.
From everything I've read, load balancing across rails seems to be totally unnecessary. There is only one lot of circuitry to generate the +12V on all the rails, so they aren't genuinely independent rails. They all get joined together inside the PSU.
The only reason for multiple rails is to have multiple lots of over-current protection (OCP). The impression I get is that on any decent PSU the OCP value on any single rail is likely to be a lot higher than the gfx card can draw.
Absolutely wrong about multi-rail psus now. There were old protection rules regarding 20A long ago. These days most psu makers go way above 20A. Like the Antec HCP-1200 has ocp limits of 30A on it's 8 rails. While the lower power HCP's have OCP at 40a on each of it's 4 rails. Good luck getting over that limit, there aren't enough connectors on each rail to get over unless you're doing something insane. Single rail vs multi-rail does not matter whatsoever now unless you're buying a junk psu.
From everything I've read, load balancing across rails seems to be totally unnecessary. There is only one lot of circuitry to generate the +12V on all the rails, so they aren't genuinely independent rails. They all get joined together inside the PSU.
The only reason for multiple rails is to have multiple lots of over-current protection (OCP). The impression I get is that on any decent PSU the OCP value on any single rail is likely to be a lot higher than the gfx card can draw.
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