Alert from CNET Staff

 Attention forum users:  We want you to try out the new CNET forums platform! Click here to read the details. Thanks!

Dell forum: Why would all USB ports on DELL Dimension E521 stop working?

by: scalywag66 January 20, 2011 2:57 PM PST

Like this

0 people like this thread

Staff pick

Why would all USB ports on DELL Dimension E521 stop working?

by scalywag66 - 1/20/11 2:57 PM

As you may know already, the E521 has no PS/2 ports onboard and has pretty much rendered the machine an expensive paperweight since the USB ports have all ceased to operate. A lil bit of the machine can be found here

In any event, so yesterday I was replying to an email typing away just fine when all of a sudden the keyboard stopped working and Windows began to make the alert sounds it makes when you insert or remove a USB device for like 8-10 seconds straight. A message from Windows Vista popped up then that I failed to read exactly what it said since i was eying the ports and caught the last second of error message as i looked back up at the screen before the message faded away.

It said something to the effect of "the ports cannot work fast enough 'something something 2.0" or that it "can perfom faster 'something something' 2.0"

Next thing I know I try to click the message bubble in the windows taskbar to read it again but the mouse wouldn't move. Then I try to navigate using the keyboard and it didn't respond neither but i noticed all the light on keyboard(scroll lock - num lock - caps lock) were on and flashing off every 6 seconds. Since I have a plethora of mice & keyboards, I began to switch em out and would get the same result, power to the devices but no activity on screen. I thought it might've been the devices and connected them to my other 3 machines and they worked fine and dandy. Put them back on the E521 and they're dead.

I've searched online the symptons and apparently it's a common issue amongst owners on this model and have seem the finger being pointed the most at the motherboard. Attempts to follow suggestions from people like "remove battery & reset set CMOC" or "change 'such & such' setting in the BIOS" is futile because even during the boot phase, they keyboard still wont work despite me pressing F2 or F12. I have no idea how to use the machine since PS/2 ports were ingeniously left out. Thanks a lot, Dell...

So if the machine is waste now, I guess I have to accept it, but I want to know why would the USB hubs stop working. Is it a motherboard malfunction, the hub itself, maybe windows, what would cause it to cease operating?

Forum Icon Legend

  • UnreadUnread
  • ReadRead
  • Locked threadLocked thread
  • ModeratorModerator
  • CNET StaffCNET Staff
  • Samsung StaffSamsung Staff
  • Norton Authorized Support TeamNorton Authorized Support Team
  • AVG StaffAVG Staff
  • avast! Staffavast! Staff
  • Webroot Support TeamWebroot Support Team
  • Acer Customer Experience TeamAcer Customer Experience Team
  • Windows Outreach TeamWindows Outreach Team
  • DISH staffDISH staff
  • Dell StaffDell Staff
  • Intel StaffIntel Staff
  • QuestionQuestion
  • Resolved questionResolved question
  • General discussionGeneral discussion
  • TipTip
  • Alert or warningAlert or warning
  • PraisePraise
  • RantRant

You are e-mailing the following post: Post Subject

Your e-mail address is used only to let the recipient know who sent the e-mail and in case of transmission error. Neither your address nor the recipient's address will be used for any other purpose.

Sorry, there was a problem emailing this post. Please try again.

Submit Email Cancel

Thank you. Sent email to


Thank you. Sent email to


You are reporting the following post: Post Subject

If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.

Offensive: Sexually explicit or offensive language

Spam: Advertisements or commercial links

Disruptive posting: Flaming or offending other users

Illegal activities: Promote cracked software, or other illegal content

Sorry, there was a problem submitting your post. Please try again.

Submit Report Cancel

Your message has been submitted and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.


Your message has been submitted and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.


You are posting a reply to: Post Subject

The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to the CNET Forums policies for details. All submitted content is subject to CBS Interactive Site Terms of Use.

You are currently tracking this discussion. Click here to manage your tracked discussions.

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

Sorry, there was a problem submitting your post. Please try again.

Sorry, there was a problem generating the preview. Please try again.

Duplicate posts are not allowed in the forums. Please edit your post and submit again.

Submit Reply Preview Cancel

Thank you, , your post has been submitted and will appear on our site shortly.