vindicar replied to your post: Just disconnected a 2,5’’ HDD (120GB), lowering my total space to 200GB, but PC booted up…

may be it’s really PSU.

I do start to think that, yes. Problem is, I don’t have any to test it (I have a 300W one in another PC, but my PC needs 400W to work). And as always I have no money to buy a new one… *sigh*