lapping my Ultra-120 Extreme cost me $90 (to replace it)

[graysky]

Well, you certainly need to be careful. As long as you take it slowly, have something secure to hold the cpu and not bend the pin, and keep the razor blade at the right angle, you should be fine. I've done it so many times I can't even begin to count them.

Which type of CPU? I've heard they are soldered down on E/Q6600's and above.

[PhilDoc]

Which type of CPU? I've heard they are soldered down on E/Q6600's and above.

Good point, they've all been amd cpu's. Haven't tried an Intel since the 3.2G 478 pin. That went fine, but I do remember hearing that Intel started soldering down their IHS at aroung that time.

[M Diddy]

Which was my point.... There started to solder the core to the IHS with the Pressler's I believe, making it near to impossible to take off...

[PhilDoc]

Which was my point.... There started to solder the core to the IHS with the Pressler's I believe, making it near to impossible to take off...

Sorry, been so long since I've ran Intel, almost forgot they existed, lol

[NJDevilsFan21]

graysky I'm confused - you lapped and got better temps and you are wondering what you did wrong?

[TysonM]

graysky I'm confused - you lapped and got better temps and you are wondering what you did wrong?

Did you read the whole thread?

Correct me if I'm wrong, but he initially had a problem but then in removing it and putting it back in [or whatever he did] it fixed the problem and he reported that near the bottom of the first page of this thread. He edited his first post to show that lapping did improve his temps.

So, lapping did NOT screw up his heatsink. CORRECT ME IF I'M WRONG OP.

[andyisc00l]

Which type of CPU? I've heard they are soldered down on E/Q6600's and above.

Have you tried doing the heavy duty mounting tutorial that I think freecableguy had for the thermalright 120?? It involved using some more heavy duty hardware store stuff and TIM. I personally wouldn't mess with TIM, but I think it offered a few degrees in improvement.

[CyberDruid]

lol he should def change the title of this thread to reflect his "correction"

Lapping rarely if ever "screws" a HS or WB...just redo it until you get it right--there's a ton of material to work with.

A CPU could be a different matter...

[it_burns_when_i_pee]

i've lapped dozens of heatsinks in the past and you can make a right mess if you rush it

this is my ultra 120 which i did with 2400 silicon carbide sheeting. anything under is too course and will take too much away resulting in an un-even surface. took around 2 hours and lots of elbow grease, also lapped the cpu and although streeks can be seen they cannot be felt. the best technique is to put some water droplets on a kitchen counter (flat essential) put the sandpaper ontop and went the top of the sand paper. put the heatsink ontop and start off in your circular motions turning every few minutes. i used acetone to clean off the residue and washed the paper to get rid of any build up that would affect it. also i use bounty kitchen roll as cheaper ones tend to be very fibrous and tear

here is the results .... temps are 29-30 degrees idle with a nexus 12 can fan mounted and goes upto 41 playing fear or something similiar with all details rammed up

[it_burns_when_i_pee]

i've posted a thread about the lapping job i did

check it out :

http://www.xtremesystems.org/forums/...d.php?t=156216

[graysky]

Just curious... if anyone was "inspired" to try this on their chip after reading my guide?