We have a Dell Optiplex 755 which is freezing at POST and displaying what appears to be a hexadecimal string in the top-left corner of the screen, like so:


Any ideas on what is causing this?

  • I'd strongly suggest looking at the Dell website and/or contacting Dell support. – mdpc Dec 18 '12 at 19:56

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.