Solved

Power small fans with USB

Posted on 2012-03-21
7
306 Views
Last Modified: 2012-08-13
I wanted to check with the hardware gurus here if it would be possible to power old, small CPU cooling fans using the power from a USB 2.0 port.

I have a AIO system that I would like to throw some more air in thru the bottom. I  have several small old CPU fans ((80286, 80386, etc.) that I could mount to bottom of the system, but would prefer not to have to open the system to get power to them.

Therefore, I was wondering if I could wire the fans to a USB connection & plug it into one of its ports. I have more than enough USB ports.

Thanks!
0
Comment
Question by:Blinkr
  • 2
  • 2
  • 2
  • +1
7 Comments
 
LVL 83

Accepted Solution

by:
Dave Baldwin earned 150 total points
ID: 37749799
Most of those fans require 12VDC and USB only supplies 5VDC at either 200mA or 500mA per port.
0
 
LVL 91

Expert Comment

by:nobus
ID: 37751245
as said - usb does not have the correct voltage; but i would not use it for that, even if it had the correct voltage - since you can overload the USB easyly - and then you need a new mobo

you could - if you still want to fan the system, look for 5V fans, with low amperage
0
 
LVL 69

Expert Comment

by:Callandor
ID: 37752218
I recommend that you bite the bullet and use case fans for they were designed for - connected to the power supply and moving air in the most efficient way.
0
Save on storage to protect fatherhood memories

You're the dad who has everything. This Father's Day, make sure your family memories are protected. My Passport Ultra has automatic backup and password protection to keep your cherished photos and videos safe. With up to 3TB, you have plenty of room to hold the adventures ahead.

 
LVL 91

Expert Comment

by:nobus
ID: 37753091
that may be difficult on an AIO
0
 
LVL 1

Author Comment

by:Blinkr
ID: 37754104
What about chipset fans??
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 37754409
They are usually 12VDC.
0
 
LVL 1

Author Closing Comment

by:Blinkr
ID: 37899711
Thanks for the help!! I am unable to find a 12VDC fan, so I tapped into the power of the system fan to power another small fan mounted on the outside.
0

Featured Post

Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
need to clone a white copy of a linux device 2 75
Top cover replacement dell latitude d620 12 72
Laptop keyboard tester 10 80
Zavio B7510 5M manual download 2 12
I use more than 1 computer in my office for various reasons. Multiple keyboards and mice take up more than just extra space, they make working a little more complicated. Using one mouse and keyboard for all of my computers makes life easier. This co…
In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
The viewer will learn how to successfully download and install the SARDU utility on Windows 8, without downloading adware.

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now