Since you are posting from another system, see if you can download and burn to an optical disc Memtest86:
download the latest bootable ISO, burn that to a blank CD or DVD, boot from that on the DH67BL system, and run the full test. It should do everything automatically, let it run the full test, which is 8 or 9 different tests. See what happens and report back.
Thanks very much for getting back to me.
Memtest has been running for ~8 hrs. Now into test #8. I am not sure how to interpret results, but the bottom third of the screen is constantly red, apparently listing failing addresses? In the line in the middle that begins with the running time, the next to last entry is Errors, and shows 7359744.
I don't know what I'm looking at, but this would seem to suggest problems, no?
I am about to leave for travel, so I may have to shut down the test before it finishes and not be able to get back to this for 7-10 days; but I shall get back to this machine eventually. I will post when I can. Much appreciate the help!
Thanks. I understand the logic, and I probably could do that. But, I don't have ready access to another machine, so it would not be easy.
Given the memtest results--which seem to indicate major RAM problems--wouldn't the easiest thing to try be just swapping in other RAM that is either brand new or I know is good, and running memtest?
The memtest results may indicate bad RAM. I've had memory problems where sometimes just rearranging the order of how the DIMMS are installed in the sockets will correct a memory problem. It really has worked for me.
If you're into further testing, power up the motherrboard with one DIMM installed and run memtest on that one piece. Do that for each piece and see if you can identify a single DIMM that has the problem. If you can do that then you've identified the fault.
Even if you are able to identify a single bad DIMM, you need to send all the DIMMS back for replacement as they were sold and only work reliably if they are a total matched set.