Getting PSU help

[nymph4]

Can anyone tell me of a good Power Supply place to get new ones?

I found some but they have no phone numbers and I need to talk to someone.
Thank

[patio]

Uhhh where are you located ? ?

[nymph4]

PA. USA  but I use to buy from Tigerdirect.com  but if I buy a PSU they realy can't talk to me about anything they just sell.

[patio]

What type of questions do you have ? ?
PC Power and Cooling is a great resource for PSU info but it can be a little overwhelming...
Still if you have time to read you will come out of it with a good handle on things...

[nymph4]

I am looking at a 270 Watt PSU that says it has
One ATX 24 pin connector.
One 12V connector for a P4 Motherboard.
Two I.D.E connectors.
One Floppy Drive connctor.
One SATA connecotor.

IN The specs it says.
+12V at 0.3A
+12 1.  at 16A
+12V 2.  at 16A
+5V at 18A
+3.3V at 17A

Now am I right that all the 12V ones here are all within the 24 Pin connector that goes to the Motherboard?

[homer]

Now am I right that all the 12V ones here are all within the 24 Pin connector that goes to the Motherboard?

no.

please provide a link to the power supplies spec sheet because i think there is an error in the specs that you gave us.

[nymph4]

Here is the link
http://www.atxpowersupplies.com/270-watt-power-supply-fsp270-50sav.php

[homer]

i thought there was an error...

IN The specs it says.
+12V at 0.3A
+12 1.  at 16A
+12V 2.  at 16A
+5V at 18A
+3.3V at 17A

thats supposed to be -12V. the negative 12V is in the 24pin mobo connector, the other two are just your standard 4 pin 12v molex connectors.

[nymph4]

Well this is what I want to know?
Is +12V always in the 24 pin Malex Connector that goes to the Motherboard? How did you know what Voltages go to what connector?

If a PSU has a 12V Rail then how do you know what 12V goes to what? If there is -12V and +12V

[Dusty]

How did you know what Voltages go to what connector?

You don't need to know, plugs can only be inserted in sockets one way.

ATX/ATX-2 pinouts are shown here and *Blocked Russian URL*/Power/atx_v2_pinout.shtml]here..[/url]

[nymph4]

Well like I see the 24 pin connector for the Motherboard has a -12V wire and a +12V wire.

So I would gess that when you see the specs for a PSU and it says -12V at 16A and +12V at 8A  this means that the connector can give this mucth to the Motherboard.

But because I see that the other wires in the 24 pin connector also have -5V and +5V and things like that that I am not RIGHT.

So I gess I will have to ask my Q  in another way???

If you find a PSU and it has a 24 Pin connector it is for the Motherboard. And if it has a lot of 4. pin connectors they are for Hard Drives and things like that.
And if the PSU says it's a 320 Watt PSU that is the Wattage it can output.

OK I get this but when ever you look at any PSU specs they say.
-12V at 16A
+12V at 30A
-3.3V at 8A
+5V at 8A

So I want to know how to read these numbers what they tell me
Thank you

[Dusty]

So I would gess that when you see the specs for a PSU and it says -12V at 16A and +12V at 8A  this means that the connector can give this mucth to the Motherboard.

But because I see that the other wires in the 24 pin connector also have -5V and +5V and things like that that I am not RIGHT.

But you are right, the quoted figures show the voltage supplied and what the maximum current drawn can be.  Some connections are rated higher/lower than others depending on what voltage they deliver to components and how much current can be expected to be drawn by those components.

[nymph4]

I think I have it now??

Whenever you see the specs for any PSU it tells you the Voltage and Amps for  3.3V   and5V   and 12V

So in any of the Connectors from the PSU has a YELLOW Wire it will supply the  12 Volts at what ever Amps the Specs say RIGHT?

And this goes for the other Voltages

[patio]

Did you visit

PC Power and Cooling is a great resource for PSU info

yet ? ?

[nymph4]

OK but do I have it RIGHT befor I go there?