The Corsair User Forums  

Go Back   The Corsair User Forums > Corsair Product Discussion > Power Supplies

Thread Tools Search this Thread Rate Thread Display Modes
Old 01-11-2019, 12:41 PM
RobK7 RobK7 is offline
Registered User
RobK7's PC Specs
Join Date: Jan 2019
Posts: 2
POST ID # = 989287
RobK7 Reputation: 10
Default Power supply for older system

Unlike modern mainboards, old ones draw most of the power they need from 5V and 3V3. For the one I'm currently working on, 35A on 5V and 20 on 3V3 with a combined power of 180W are recommended by the manual. One can get by with 30A on 5V but thats the bare minimum.
For total power, 400W is entirely sufficient.

The system I need the supply for is similiar to the one in my profile and power consumption is roughly the same, its a dual K7 with a midrange AGP graphicscard, 1-2 HDDs, an optical drive, NIC, USB mouse and keyboard.

So far I've found the AX(i)1200 to be the smallest PS to deliver enough amps.
Can they be safely loaded primarily on the 3,3 plus 5V rails with little load on 12V? Are these supplies individually regulated?

Any help with this is highly appreciated.
Reply With Quote

Old 01-11-2019, 02:35 PM
Corsair Notepad Corsair Notepad is offline
Corsair Employee
Corsair Notepad's PC Specs
Join Date: Nov 2018
Location: Fremont, CA
Posts: 30
POST ID # = 989309
Corsair Notepad Reputation: 10

Hi RobK7 for detailed specifications you can look here

Other than that our PSU's are multi rail and not single and the mentioned PSU should be more than enough to supply power to your system.
Reply With Quote

Old 01-11-2019, 03:36 PM
RobK7 RobK7 is offline
Registered User
RobK7's PC Specs
Join Date: Jan 2019
Posts: 2
POST ID # = 989318
RobK7 Reputation: 10

Thanks for your promt answer. Nice to hear that the 1200AXi can handle such a 5/3,3V heavy load.
Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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

Forum Jump

All times are GMT -4. The time now is 08:22 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.