[Tfug] Memtest question

[earljviolet at deserthowler.com]

I have 2 computers that seem to be working OK.  I decided to run Memtest
on boh of them.  I use Ubuntu and run Memtest86 from Grub on both.

One is a Dell Poweredge 500 SC with I GB ECC memory.  I just began setting
this one up as a small printer and file server.  Memtest shows problems
immediately.  Is this a problem with EDD memory and Memtest?

The other is a P4 with DDR memory.  It doesn't indicate errors but only
runs to 20% of the testing and locks.  I have uptimes of 4 or 5 days with
this machine.  There is an occasional total lock up with DVDs using VLC;
this is usually with a bad DVD.  Could this be the DDR memory?

Earl