I need some help on how I can OC my AMD rig to 3ghz NB. I can't seem to get past 2.4ghz without experiencing stability problems. I need some pointers. do I need a new NB cooler? mine seems to get pretty toasty even only at 2.4ghz NB. do I need one of those NB coolers with built-in fans?

I only OC via multi push so I'm totally clueless about this. TIA

system specs:

[AMD] Phenom II x6 1090T BE Motherboard
[Gigabyte] GA-MA790FXT-UD5P AM3 Memory
[Kingston] 2x2GB DDR3 1333 Graphics Card
[Sapphire] HD5970 OC Ed. + [MSI] GTX 460 1GB
Hard Drive
[Western Digital] Caviar Green 500gb 32mb cache Power Supply
[Corsair] TX850 Case
[Gigabyte] 3D Aurora 570
CPU cooling
[Corsair] H50 Push/Pull OS
Windows 7 Ultimate 64bit Monitor
[Acer] P241w 24" 1920x1200