Re: Just bought a Thermalright Ultra 120 extreme
I think 100 grit is unneccesary, unless your base/heatspreader is seriously uneven. I started with some 600 grit, then 800, then 1200, then 2000. Remember, you are not looking for a mirror shine, you are looking for flatness, so don't use metal polish. And don't push down whilst lapping. Let the wait of your hand do the work.
AMD Phenom II X4 955 BE @ 4.0GHz + TU120E lapped - MSI 770-CD45 AM3 - 2x2GB OCZ DDR3 1333MHz - Sapphire HD 4870 - Samsung Spinpoint 500GB 7200RPM 16MB cache HDD - Tagan TG600-BZ Piperock - (Currently open test bed) - Windows Vista Home Premium 64bit.