On 04/03/2011 12:18 PM, LAS wrote:
... on a Dell laptop using anything but the Dell diagnostics?

As others have said, Memtest86+ is the best solution.

Related questions
Does anyone have an old "Drivers and Utilities" disc that would work
with an Inspiron 5100? I'd be happy to pay shipping and "handling."

Even without a support contract, you should be able to download the
drivers individually from the Dell website.

Yousuf Khan