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USB Port Failure Dell Dimension C521

Some chip on the motherboard failed.Do try what others mentioned.And in parting, your files are likely ok. by scalywag66 / January 20, 2011 6:57 AM PST As you may know already, the E521 has no PS/2 ports onboard and has pretty much rendered the machine an expensive paperweight Thanks. The posting of advertisements, profanity, or personal attacks is prohibited. More about the author

Or have you any other USB device that lights up when plugged in that you could use to check? Such opinions may not be accurate and they are to be used at your own risk. If I plug an optical mouse into one of the USB ports the infrared light doesn't light up until after the second screen is displayed. Jun 19, 2005 USB port broken on Dell latitude c600 Jan 1, 2008 Dell Dimension 4300 vs Dell Dimension 8100 Nov 8, 2010 Dell Dimension E521 help Sep 24, 2007 Add official site

Especially as it has the dedicated PS2 keyboard and mouse ports. so i assume removing he hub would also work. I'm not entirely convinced it's a PSU issue but you can never be completely certain something weird is not going on. Just what is it that is disabling the KB/Mouse until "Logon"?

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  4. Report • #2 musicmaker May 27, 2010 at 07:28:04 thats great, thanks very much.
  5. but it worked when i plugged it into my hub.
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  7. chrisjr View Public Profile Find More Posts by chrisjr 23-11-2012, 23:44 #11 dobbin231 Forum Member Join Date: Nov 2004 Posts: 443 Quote: Originally Posted by chrisjr Have you tried
  8. That was a Dell too, though different model.
  9. This computer does not have a floppy disk drive so therefore it was giving this error message because it was looking for it and couldn't find it.
  10. 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

i suspect it might have been when i got the hub and plugged the keyboard directly into the computer. I tried it with a powered USB HUB with the keyboard attached and got into the BIOS........ Is it a motherboard malfunction, the hub itself, maybe windows, what would cause it to cease operating? But now everything is hunky dory with the exception of the keyboard!

flavallee replied Jan 20, 2017 at 10:01 AM Downloading webmail's sent folder etaf replied Jan 20, 2017 at 10:01 AM file turned into 0kb in... Just doesn't recognise the keyboard...!!! Ask a Question See Latest Posts TechSpot Forums are dedicated to computer enthusiasts and power users. https://www.cnet.com/forums/discussions/why-would-all-usb-ports-on-dell-dimension-e521-stop-working-514461/ This site is completely free -- paid for by advertisers and donations.

are gone with the new CLEAN install of win 7! s2k View Public Profile Find More Posts by s2k 24-11-2012, 16:14 #20 dobbin231 Forum Member Join Date: Nov 2004 Posts: 443 Frustration continues. I have no idea how to use the machine since PS/2 ports were ingeniously left out. It did cause all sorts of false memtest errors so they may have taken it out on later bios versions.

Though as above we did get the keyboard working before, so I don't think i its that.We tried clearing the CMOS again and repeating the steps as before, but it wouldn't http://www.computing.net/answers/hardware/dell-e521-usb-known-bios-issue-workaround/66513.html I'm not really satisfied with your service. Which might make it a little more difficult to find a suitable card. You know anyone looking for a MoBo?

It should shouldn't it? my review here I have tried 2 different mouse, have tried different USB ports, have the mouse working on diff computers but I can't get it to work on my main desktop, consistently that Join our site today to ask your question. Thanks.

all though that could be possible as there is NO PS2 ports here!Is there a windows based program that will allow me to make bios changes?thanks again all chris cmangleJan 21, Won't you be able to get into the BIOS again with the hub, this time with the battery inserted ?. by R. click site There's should be a jumper on the motherboard which you temporarily move to different pins, but you'll need to read the motherboard manual.

So worth trying, assuming the replacement PSU is healthy of course. Has anyone else had this problem with the e521? About a few months ago, I started to experience a very strange problem with my mouse--which many have described before-- it is basically erratic behavior, hard to move it from left

Please try again now or at a later time.

Yes, my password is: Forgot your password? Sorry, there was a problem flagging this post. So it looks like there is a 5V rail there but perhaps it can't quite power the keyboard properly. TechSpot is a registered trademark.

We retried about 20 more times with Dell Windows XP service pack 2 iso file / image on CD and Dell OS Windows XP reinstallation DVD. I have tried various combinations for over 4 hours (very frustrated!) but I just cannot get past this point. (changing USB ports, disconnecting Floppy drive, disconnecting memory card reader, disconnecting Hard Operating Systems ▼ Windows 10 Windows 8 Windows 7 Windows XP See More... http://hcsprogramming.com/usb-port/usb-port.php chrisjr View Public Profile Find More Posts by chrisjr 23-11-2012, 17:18 #3 the gold room Forum Member Join Date: Nov 2010 Location: overlook Posts: 779 Quote: Originally Posted by

This seems to suggest that the USB ports are working and sending power to USB devices? More resources See also Maxed out Dell dimension E521 Dell Dimension E521 Will not turn on. About CNET Privacy Policy Ad Choice Terms of Use Mobile User Agreement Help Center Win XP ALL How-tos Win 10 Win 8 Win 7 Win XP Win Vista Win 95/98 Win The powered USB Hub has a small LED on which shows when it is powered up.

Login now. As you have tried disconnecting things already it doesn't sound promising! dobbin231 View Public Profile Find More Posts by dobbin231 23-11-2012, 23:14 #8 chrisjr Forum Member Join Date: May 2004 Location: Reading Posts: 27,996 Though they are not strictly speaking The kicker is that, my wireless card which is also USB related, works fine...

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. No audio input... Find More Posts by flagpole 24-11-2012, 11:53 #16 dobbin231 Forum Member Join Date: Nov 2004 Posts: 443 Quote: Originally Posted by hum Looking at your manual, I see there Do you think changing the Power Supply would have any effect (I have a spare power supply in the PC with the damaged motherboard)? dobbin231 View Public Profile

I would like a refund of the fee charged by your company. Hardware_Helper and 3 other Computer Hardware Specialists are ready to help you Ask your own question now Share I have tried mulipule keyboards. 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 Dell Dimension E521 NVidia GeForce 7300 le is not compatible for windows 10 on dell dimension e521 what is available replacement is the XFX ATI Radeon HD6670 also compatible with the

i do plan to try and do a bios update. flagpole View Public Profile Visit flagpole's homepage! Once it rebooted past the initial black error screen the keyboard light came on and we could use the keys again to select options for the Windows setup. It could also be affecting other devices on the motherboard.

Press F1 to continue. › [Solved] What part to replace in a Dell Venue 8 Pro 5468W › Toshiba Qosmio laptop does not boot See More ↓ #4 D-LUX December 12, You may also... The underlying cause might be a dead bios battery.