Go Back   Tech Support Forum > Hardware Support > Laptop Support

Annoying humming sound!!! (Dell Inspiron 1721)

This is a discussion on Annoying humming sound!!! (Dell Inspiron 1721) within the Laptop Support forums, part of the Tech Support Forum category.


Closed Thread
 
Thread Tools Search this Thread
Old 09-13-2009, 12:22 PM   #1
Registered Member
 
Join Date: Sep 2009
Posts: 5
OS: Vista



I have a Dell Inspiron 1721 and itís making a non-stop intermitent humming/buzzing sound in the background.

The only time it stops is when I unplug the charger from the laptop and the silence will last for about 5-10 seconds and then itís back. Iíve changed batteries, chargers, fan, DVD drive, played around temporarily removing the display screen, mouse, modem, cardsÖ and nothing makes that annoying noise go away for good.

Since the computer is out of warranty, Dell won't help w/o charging a fortune.

NEED HELP PLEASE!!!


Fred

__________________
EternalLonewolf is offline  
Old 09-14-2009, 07:36 AM   #2
TSF Enthusiast
 
Madcatz's Avatar
 
Join Date: Apr 2008
Location: Jackson, MI
Posts: 1,929
OS: XP/7/Server 2008

My System


first thing is where is the sound comming from? quite a few things that can make a humming sound. Does it seem like its comming from the from the front, back, speakers, lcd panel?

try to unplug the speakers, sound still there?

__________________

Microsoft System Center Configuration Manager Administrator
MemTest86+
PC Running Slow?
Virus/Malware Help
Madcatz is offline  
Old 09-14-2009, 08:08 AM   #3
Registered Member
 
Join Date: Sep 2009
Posts: 5
OS: Vista



Thanks Madcatz, I completely forgot to mention that...

The noise comes from the speakers & earphones. I tried using also a USB adapter for the earphones and the noise is there too.
__________________
EternalLonewolf is offline  
Old 09-14-2009, 08:16 AM   #4
TSF Enthusiast
 
Madcatz's Avatar
 
Join Date: Apr 2008
Location: Jackson, MI
Posts: 1,929
OS: XP/7/Server 2008

My System


have you tried muting the microphone? and updating the audio driver? and is it a really loud humming? does it go up and down with the volume?
__________________

Microsoft System Center Configuration Manager Administrator
MemTest86+
PC Running Slow?
Virus/Malware Help
Madcatz is offline  
Old 09-14-2009, 09:57 AM   #5
Registered Member
 
Join Date: Sep 2009
Posts: 5
OS: Vista



The noise is there if microphone & speakers/earphones are muted or active and it never changes intensity with the volume.

All the drives are updated.

The noise is not very loud, but enough to be noticed when the computer is on.
__________________
EternalLonewolf is offline  
Old 09-14-2009, 10:08 AM   #6
TSF Enthusiast
 
Madcatz's Avatar
 
Join Date: Apr 2008
Location: Jackson, MI
Posts: 1,929
OS: XP/7/Server 2008

My System


ok, one other thing to try, see if you can take the speakers out away from the laptop but leave them hooked up, see if you still hear noise that way.

Edit: and is it constant? do you hear it even when its not running windows?
__________________

Microsoft System Center Configuration Manager Administrator
MemTest86+
PC Running Slow?
Virus/Malware Help
Madcatz is offline  
Old 09-14-2009, 10:44 AM   #7
Registered Member
 
Join Date: Sep 2009
Posts: 5
OS: Vista



Will try removing the speakers soon as I get home in the afternoon.

As far as I've noticed, it's only present after Windows loads. It only stops for a few seconds while i unplug the charger regardles of the status of the battery's charge.
__________________
EternalLonewolf is offline  
Old 09-14-2009, 12:35 PM   #8
TSF Enthusiast
 
Madcatz's Avatar
 
Join Date: Apr 2008
Location: Jackson, MI
Posts: 1,929
OS: XP/7/Server 2008

My System


only in windows eh...that makes it more interesting, lol. before doing anything with the speakers, try disabling the audio card in device manager, see if that stops it.
__________________

Microsoft System Center Configuration Manager Administrator
MemTest86+
PC Running Slow?
Virus/Malware Help
Madcatz is offline  
Old 09-14-2009, 01:46 PM   #9
Registered Member
 
Join Date: Sep 2009
Posts: 5
OS: Vista



Just tried it and the noise is still there with the audio card disabled. Makes no sense to me...
__________________
EternalLonewolf is offline  
Old 09-15-2009, 07:52 AM   #10
TSF Enthusiast
 
Madcatz's Avatar
 
Join Date: Apr 2008
Location: Jackson, MI
Posts: 1,929
OS: XP/7/Server 2008

My System


nope, no sense at all, normally if its hardware/feedback from hardware you would normally get it constantly when the laptop is on. But some peices of hardware is only really used in windows, like some types of audio and the microphone.

Only things I can think of to try would be to update the BIOS and do a fresh install of windows. Only other thing may be a motherboard replacement.

__________________

Microsoft System Center Configuration Manager Administrator
MemTest86+
PC Running Slow?
Virus/Malware Help
Madcatz is offline  
Closed Thread

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off


Post a Question


» Site Navigation
 > FAQ
  > 10.0.0.2


All times are GMT -7. The time now is 04:14 AM.


Copyright 2001 - 2014, Tech Support Forum

Windows 7 - Windows XP - Windows Vista - Trojan Removal - Spyware Removal - Virus Removal - Networking - Security - Top Web Hosts