Help about the rails in PSU - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Closed Thread
Thread Tools Display Modes
Old 12-27-2006, 07:33 PM   #1 (permalink)
Newb Techie
Join Date: Dec 2006
Posts: 27
Default Question about the rails in PSU

qhi guys..

with my new pc set.. i decided to buy a Cooler Master Real Power Pro 850W over the TT Tough power 850W
because of the reviews posted in newegg

but i been reading about the rails and im very confused...

my set includes 2 8800GTX but it seems like these cards need a Minimum 450W or greater system power supply (with 12V current rating of 30A) each one

And the cooler master psu provides:

+3.3V@25A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+1 2V4@18A,+12V5@18A,-12V@0.8A,+5VSB@3.5A

6 rails of 12Volts + 18Amp each
so... how my video cards work on these rails?

can some one help me to understand that?

i also noticed ... the TT Tough power has two of the 4 +12V ratings pushing 30Amps

janoloco is offline  
Old 12-29-2006, 09:03 AM   #2 (permalink)
Newb Techie
Join Date: Dec 2006
Posts: 27
Default hello

any body knows about this?

janoloco is offline  
Old 12-29-2006, 10:06 AM   #3 (permalink)
disgruntled ex-moderator
Nagasama's Avatar
Join Date: Oct 2006
Location: probably on the lake
Posts: 6,956

multiply the 18A by 6(the number of rails)= 108A = no problem.
read this, it wil will also tell you that you don't need that much power, but with those two cards having good headroom is a good idea:
"nagasama no longer drinks tecate, or streaks out of the night for anything, and he has a fine wife so he has no use for your girlfriend...she is safe..."
Nagasama 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

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 11:29 PM.

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