• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 187
  • Last Modified:

Power supply tester sometimes shows -5V is not on, but PC seems to work - normal?

Hi,

I often use a power supply tester to diagnose PCs that don't work right, and especially on Dell computers I often see the -5V LED not light up, even when the PC runs without problems.

What does the -5V do, and is there any possible issue with this, or is it just a silly Dell thing?

Thanks!
0
semmelbroesel
Asked:
semmelbroesel
1 Solution
 
CallandorCommented:
The negative voltages (-5v and -12v) are for legacy purposes and are not used in today's motherboards.  You don't need to worry about them.
0
 
semmelbroeselAuthor Commented:
Thanks, that's exactly what I needed to know :-)
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Introducing Cloud Class® training courses

Tech changes fast. You can learn faster. That’s why we’re bringing professional training courses to Experts Exchange. With a subscription, you can access all the Cloud Class® courses to expand your education, prep for certifications, and get top-notch instructions.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now