Dell e521 USB Known BIOS Issue - Workaround?

Dell Dimension e521 desktop
May 27, 2010 at 05:28:27
Specs: Windows Vista
Hi there,

I recently aquired this PC and it works fine, am happy with it. However, there is a known problem that the default BIOS setting (after the BIOS has been flashed, I assume) - is to not recognise USB keyboards! As the Dell has no PS/2 or serial ports (i.e. you HAVE to use a USB keyboard) this is obviously a stupid problem!

I'd like to avert the issue before it becomes an issue - is there anyway I can make the default BIOS setting automatically allow USB keyboards?

Otherwise, the slightest issue with this PC and it will curtains! - I don;t want to live on that knife-edge!



See More: Dell e521 USB Known BIOS Issue - Workaround?

Report •

May 27, 2010 at 06:50:33
From what I've read, the original Dell keyboard that came with the E521 will work to access the BIOS, provided it's connected to the upper left USB port (when viewing the tower from the rear). Updating the BIOS to the latest version (1.1.11) will fix the USB problem, then any old USB keyboard will work.

Report •

May 27, 2010 at 07:28:04
thats great, thanks very much. It's very odd that only the shipped keyboard will work with it....maybe it's a low power keyboard and they just never bothered to test the USB bootup with a more power hungry model......

thanks for the link. Is there any way of updating the BIOS outside of windows - I don't like the risk of conflicts within the OS resulting in a botched update and then a computer that won't boot?

if I just go into the BIOS and change the settings manually with this keyboard then I assume this will fix it 'forever' and I can then use any old keyboard at bootup?

sorry about all of the questions, I'm fairly happy with some of the theory behind all this, I've just never bothered to change stuff like this before so am a little more cautious than usual.

thanks again, Alex

Report •

May 27, 2010 at 13:19:58
Some of dells bios's had a selection for some odd named usb choice. It was to support usb devices until the OS took over. It did cause all sorts of false memtest errors so they may have taken it out on later bios versions.

If you flashed the bios and now it fails then go back to dell and get an older bios and return it to what you felt works.

I support the 'Everybody Draw Mohammed Day'. A religion doesn't deny my freedom.

Report •

Related Solutions

December 12, 2010 at 02:54:50
SOLVED WORKAROUND ... I was able to use a NEW PCI USB Card, picked one up from best buy for around 20 bucks. From there, I attached a hub to one port to regain several more ports. Hope this will help. I have included a link to the card that is working for me.â„...
I too lost all usb functionality on my dell E521, although it should also be noted that I can still not access the bios... i do plan to try and do a bios update. But for now I am content that I am able to access my machine as soon as windows starts up. And before the password screen.
Also... you must get a plug and play card that does not require driver installation. It will say so on the back of the box. Legacy USB PCI Cards may not work since they may need drivers that a newer OS may not have

Report •

Ask Question