Has anyone lapped a p3?

[trs80]

I have a p3 blued core and was curious if I have enough underneath to shave off the blueing. Or, will I blow electrical energy up its a**.

 

[vss1980]

Lapping will basically get the surface closer to the chip itself. The blue surface is pretty much there as protection. Once you start grinding it away you can get to the chip underneath. Once you get past the blue material, you start grinding away transistors.

Its your choice. Lapping only ever gives about 1 -> 2 'C benefit if done properly. I must say properly as its very hard to do properly. You must keep the surface flat after lapping and have no bumps or angles in it (ie. as much of the surface in contact with the heatsink) otherwise it will have the opposite effect.

I personally dont think its worth the risk if the chip has any slight value (and a P3 does).

 

[spamboy]

Lap the heatsink and sleep easy. Lap the P3 and cry yourself to sleep. 🙂

 

[bacillus]

<< Lap the heatsink and sleep easy. Lap the P3 and cry yourself to sleep. >>


nice sentiment spamboy! 😎

 

[trs80]

Thank you, Now that I have that straight I think I just might make room to splice in the air pump hose from the fish tank to the assembly to help pre-cool the lapped hs. I will drill the hs and silicone it to the stock hs, and this experiment will include the copper shim I just ordered. Air pump $3.75 at online pet store, shim cost me more. Invention is the father of nessecity(I never can spell that word).