Having read up on a load of stuff, I finally went for my first lap attempt last night: Got hold of 240, 400 and 1200 grade silicon carbide (wet n dry) paper, and a mirror.
Went through the grades, got a lot smoother surface but had to bail out before finishing as I was getting a monster headache - temps on idle seem to be down by 4-5 degrees, however under max load the temp still hits 60 - Arctic Cooling Freezer 64 pro, fan on max.
The problem i was having however, is that i found it VERY hard to keep the heatsink stable/level on the abrasive paper - it wouldnt just stroke along it, it kept jumping... so it looks like I might have rounded the corners up, and it didnt seem to be as flat as I would have liked when placing the lapped cooler directly on the glass.
Any hints/tips as to how to keep the heatsink from "slipping" when grinding it? Might try again later on this week, see if I can get it flatter.
Went through the grades, got a lot smoother surface but had to bail out before finishing as I was getting a monster headache - temps on idle seem to be down by 4-5 degrees, however under max load the temp still hits 60 - Arctic Cooling Freezer 64 pro, fan on max.
The problem i was having however, is that i found it VERY hard to keep the heatsink stable/level on the abrasive paper - it wouldnt just stroke along it, it kept jumping... so it looks like I might have rounded the corners up, and it didnt seem to be as flat as I would have liked when placing the lapped cooler directly on the glass.
Any hints/tips as to how to keep the heatsink from "slipping" when grinding it? Might try again later on this week, see if I can get it flatter.