Quad Core watercooling confusion

umm.. for that kind of heatsinkfan, id like to have some evidence who actually uses that in a "tower" PC.

the weight on it will be hanging quite bad off the mobo in a tower, so technically putting alot of stress on the clips/motherboard.

last year i bought a HSF roughly like that and the screws/clip went loss because it was so heavy, the pc started rapidly crashing because of overheating because it was sooo lose. ALSO a friend of mine had the same one im talking about and it actually BROKE his motherboard!!!

so.. basically im just asking before i look into that thing id like evidence if it is safe in a Tower pc and will hold very well?

if u buy a full tower you need to pay good money for it, that solves the issue of it falling apart. I wound up paying 300usd for mine, but it was WELL worth it, no question.