I've got AMD mind you but...
Checking it's flatness...
I think that you can see the difference. I'd pull it and see if you can't get it a bit closer to this. Try to start from where you left off gritwise. If you got to 2k and stopped then I'd use one sheet of 1500 for 30 reps per rotation, check it for flatness and if flat skip to 2000 to clean it up @ same per rotation. If not flat move up to 1800 and follow it up with 2k. Just 1 sheet each or how many you can bring yourself to feel comfortable with and check for flatness between each sheet to keep yourself from overdoing it.
Check it for flatness before you start it though. That way you can judge which grit you need to start or finish with. It may be closer than it appears to be.
Edited by Ceadderman - 7/26/10 at 12:22am
Originally Posted by cmeeks
Well I lapped my Q9550 and my h50 just last week - but honestly I don't know that my load temps are any different. Idle temps dropped 2-ish degrees - though it doesn't seem to make sense that my idle temps would drop while load temps remain the same...
I probably didn't do the best job, but it's certainly not bad. I would love to hear from somebody else who's done it to their Q9550 to see if it might be worth getting back in there to do a little more sanding
Currently, with my GT-AP15 running full speed I get load temps of ~60C running IBT with a 3000MB stress level (maximum doesn't equal same test everytime, so this is near max...)
Anyway, this seems to be my experience so far - shrouds, new fans, new fan arrangements, lapping, etc, etc... temperature drop = meh