If the test fails, then you'll know at least one is bad and should test them separately. Otherwise, they are both fine. IIRC correctly, if it is a memory issue it will likely transpire during a quick test anyway, and there's no real benefit to running the long test.
It's still not done after 5+ hours, but it seems to have flagged errors (65535+ apparently) already. Should I therefore assume at least one of the sticks is faulty and quit the test, then restart it with just one stick plugged in and run the (quick?) test?
Yeah, that sounds plausible. I don't really know much about memtest. I've never had memory fail the tests the very few times I've run it, I've had plenty of other problems to deal with, mostly drives and blown caps on the mb but (so far) not bad memory.
At least, not that you remember ;-)
I remember as if it were a meal ago.
That's more of a starter isn't it?
Yeah and not very filling at that. It's mostly just a bunch of licking the juices just hoping to get to the main course!