Summary: Look for a better cooler IMO. The inlet outlet port size is great, but I had to use reducers for my Thermaltake 1/4 inch hoses. I would use a 4 point mounting for Northbridge Southbridge chip sets if I were designing a motherboard.
Pros: Works....after using alternate mounting fasteners. Huge water ports keeps flow restrictions to a minimum. Petite design allows installation in tight area. North Bridge runs cooler than stock sink.
Cons: Wooed by the modest cost, was offset by the poor mounting design as previously stated by others. I installed on a ASUS MB that uses the push pin design. BAD idea here. Attach hoses and it flips all over loosing contact with chip....Very bad..I ended up using small nuts, washers, and bolts to secu...
Summary: No problems with any other Zalman parts. This block was part of an upgrade to my build as I was changing out the old water and hoses. It should be done yearly.
Pros: Solid aluminum, no leaks Fits in ecs A770M-A
Cons: I have all the Zalman water blocks and was exited to get this one because SLI ran north bridge at 80c. Very sloppy Mounting suppose to be using push pin stile. top heavy with hoses on causes it to rock on the NB chip temps now at 100c will have to lock it with nuts and bolts