New PSU Rail Balancing - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Hardware Repairs and Troubleshooting
Closed Thread
Thread Tools Display Modes
Old 11-16-2008, 01:36 PM   #1 (permalink)
Newb Techie
Join Date: Nov 2008
Posts: 1
Default New PSU Rail Balancing

The New PSU would be this: - Antec earthwatts EA500 500W ATX12V v2.0 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC Power Supply - Power Supplies

Now, this new PSU includes TWO rails. Unlike the epic fail Delta 300W that came with this computer, it has TWO 12v rails with 17A on each. Since I've never worked with duals before (infact, I have never worked with power supplies before >.<) I'll need help on distributing loads.

On my GT5432 computer, there are:
AMD Athlon 64 X2 5000+ @2.6GHz
Integrated Nvidia Geforce 6150SE
Unknown DVD/CD R/W
a USB Hard Drive Bay
1Gig Memory (512MBx2)

Now normally this PSU can power all those on a single rail. But heres the catch. I'm adding in the following:

EVGA Geforce 8800 GS 384MB
1 Gig Corsair Memory single stick

Now, I heard that 8800's take about 12A. That leaves me 5A on a single rail, and probably would not want to add in everything else into that single rail. I couldn't find out the amperage of others, so I'm asking.

So, if you kindly please, in format of:

(list hardwares here)
(list hardwares here)

list the hardwares there so I dont nuke my system.

P.S.: One 4 Pin leads to DVD Drive, 15-pin Sata leads to HDD, 20-pin leads to MOBO, 4 Pin leads to CPU, and an unknown pin leads to the USB Drive Bay. Will connect 6-pin to 8800 GS.


Another question, how do you know which cables belong to which rails (on the PSU's, I heard my PSU will have an abnormal # of cables and no sleeving at all, go green...)

Shindy is offline  
Old 11-16-2008, 01:45 PM   #2 (permalink)

Baez's Avatar
Join Date: Sep 2005
Location: Toronto, Canada
Posts: 6,985
Default Re: New PSU Rail Balancing

Since you do not have much to power it is fairly straight forward.

(DVD Drive)

Hard Drive
(DVD Drive)

The rest is plugged into your motherboard so the first rail will power them when needed. I put the DVD Drive under both in brackets because it can be run by either. They do not take much power.

There are usually 2 connections of each. CPU and motherboard power are on Rail #1. As well as 1 of the 2 molex and 1 of the 2 SATA power. The other molex and SATA connections are on Rail #2 as well as the PCI-E power. This is just a generic layout. Every PSU is different.

Baez is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
PSU like acting like a vehicle... Chrysamere Hardware Repairs and Troubleshooting 4 07-01-2008 01:27 AM
PSU Trouble! Flipip Hardware Repairs and Troubleshooting 7 04-24-2008 03:19 PM
psu, and the 12 v rail Chrysamere New Systems | Building and Buying 10 01-02-2008 04:13 AM
Question regarding mini ITX and recommended PSU 96300NAZ New Systems | Building and Buying 0 12-16-2007 09:29 PM
In Depth PSU Guide: Please Read. Oreo New Systems | Building and Buying 18 10-13-2007 10:54 AM

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:38 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.