Flaky memory? Advice needed!

[GIBSON]

*Nevermind. Some switching around revealed one of the two sticks is as faulty as it gets.*

I've been experiencing problems with my laptop the last few days. Sudden bluescreens, restarts. Ran the diagnostics included in the bios from HP, memory came back 'ok' but it told me to replace my harddrive at the hd-test. So next thing I did was hook up my hd to my desktop to take an image of it.

Afterwards I started checking into finding a second confirmation that the drive indeed is the problem. So I ran hdtune on it. At first it seemed like it couldn't read out the smart data on it, but the error scan came back with one damaged block. Today the smart function suddenly started working, and hdtune says the drive is fine. It does however show a warning that the 'reallocated sector count' has reached the critical value once. So I suppose the drive is on its way out though?

Knowing the aforementioned I decided to pop a bootable memtest copy in my laptop and fired it up without the hd attached to the laptop. (Am I correct assuming this shouldn't make any changes to the outcome of the test?)

So far all results I've been seeing on memtest are marked in red and an insane amount of errors in the overview (say a 100 less or so than the test count being at around ~40.000 atm).

Am I right in assuming the memory is definately the culprit here, or could this have something to do with the drive not being installed? (Sounds hard to believe the thing even worked for more than half an hour without restarts/bluescreens with that amount of memory errors..)