I did a memory test with memtest86 on boot, and I'm seeing this:
Is my RAM defective?
PS : My Ubuntu PC doesn't boot. Shows options in GRUB and then says there are errors in /
and failed loading /tmp
. My hard-drive was replaced with a new one and I still get this. So I was wondering if it's the memory that needs replacement.
If you have errors (you have above 18 million in the screenshot) your RAM is bad. Your RAM is likely to be good when the first pass finished without errors e.g. there is nothing red on the screen except the plus sign of the Memtest logo.
Yes. You can be lucky and it could be caused by a wrong connection, so remove the RAM clean it, plug it in and check again. But don't count on it, you will likely need to replace it.