Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Dell Precision 390; Power on loud hum and yellow "indicator" on button

  • Please log in to reply
2 replies to this topic

#1 drwmbt


  • Members
  • 98 posts
  • Local time:05:14 PM

Posted 10 November 2011 - 12:05 PM

I have a dell precision 390 that im trying to get my companies old operating system off of and prep it for donation to a non-profit org. Im just wondering if this is a power supply issue im having with the machine where it makes a loud hum when i turn it on combined with the orange/amber indicator light (which is typicall green) inside the power button.

Is there a list of error colors dell provides in their manuals? I dont have the document on hand, I suppose i'll try a google search next just wanted to try the forums as well.

edit: there is also an amber light on, on the motherboard as well. this is prob a mobo issue

to recap i've already:
-reset cmos
-removed peripherals and pci devices
-removed ram and booted

dell's support site wasn't much help either as they didnt have an "advanced troubleshooting" page for this model computer.

Edited by drwmbt, 10 November 2011 - 12:39 PM.

BC AdBot (Login to Remove)


#2 computerxpds


    Bleepin' Comp

  • Moderator
  • 4,493 posts
  • Gender:Male
  • Location:USA
  • Local time:06:14 PM

Posted 10 November 2011 - 01:06 PM

On the back of the machine there should be a series of numbered circular discs that will light up. When you turn it on are any of them a light? If so which ones. Also yes that most likely indicates a bad mobo. Which I have seen from dells often. Also this assumption is based on some of the topics on dells own forum. I would see how much one is, I'm not sure where you would find a replacement from dell unless you called them. :)
If I have replied to a topic and you reply and I haven't gotten back to you within 48 hours (2 days) then send me a P.M.
Some important links: BC Forum Rules | Misplaced Malware Logs | BC Tutorials | BC Downloads |
Follow BleepingComputer on: Facebook! | Twitter! | Google+| Come join us on the BleepingComputer Live Chat on Discord too! |

#3 rotor123


  • Moderator
  • 8,093 posts
  • Gender:Male
  • Location:New Jersey
  • Local time:06:14 PM

Posted 12 November 2011 - 05:36 PM


See if that tells you anything.

From here: http://support.dell.com/support/edocs/systems/ws390/en/ug_en/html/geninfo.htm

The power light illuminates and blinks or remains solid to indicate different states:

No light The computer is turned off.
Steady green The computer is in a normal operating state.
Blinking green The computer is in a power-saving state.
Blinking or solid amber See Power Problems.

To exit from a power-saving state, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep states and exiting from a power-saving state, see Power Management.

See Diagnostic Lights for a description of light codes that can help you troubleshoot problems with your computer.


Fortune Cookie says: Fortune not Found: Abort, Retry, Ignore?

Sent from my All-In-One Desktop. Perfect for Internet, Not for heavy usage or gaming however.

How Does a computer get Infected? http://www.bleepingcomputer.com/forums/t/2520/how-did-i-get-infected/
Forum Rules,    The BC Welcome Guide

167 @ June 2015

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users