Removing Northbridge HSF on Abit NF7?

How do I remove the HSF on the Northbridge without breaking anything....I'm having a heck of time with those little plastic things? Thanks for the help...

Just squeze them on the back side and push through. I just pulled them , the pins, thorugh the front with needle nose pliers, with another hand to keep the board from flexing. It's just that last one thats harder. Pulling on it could send the nb airbourne only to abruptly crash down on the mobo.

yup that's what i did. i kicked myself when i forgot to remove the NB HSF to apply AS3 BEFORE it went into my case. but it only took me 10 seconds to use needle nose pliers and wiggle the pins out.