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Brians256 · 05-23-2008, 06:46 AM

Cu should always work better than aluminum. So, the things that I would check are mounting and structural differences.

A heavier block could easily torque off of the CPU just a bit more. Mounting pressure can alter the CPU temp several degrees without being visibly noticiable. Finally, the block could just be settling in because of the thermal compound settling in.

Structurally, the new block could be less flat. Or, the new block could be marginally thicker at the base or the jets could be just a hair different than the older block. Check the flatness and contact patch. You've probably done this but newbies reading the thread should take note.

My bet is on the first set of issues. However, I've assumed that you have kept all other variables unchanged. Is the coolant fluid the same? Is the room temperature the same? Etc. etc..

05-23-2008, 06:46 AM	#12
Brians256 Pro/Staff Join Date: Oct 2001 Location: Klamath Falls, OR Posts: 1,439	Re: Please HELP Cu should always work better than aluminum. So, the things that I would check are mounting and structural differences. A heavier block could easily torque off of the CPU just a bit more. Mounting pressure can alter the CPU temp several degrees without being visibly noticiable. Finally, the block could just be settling in because of the thermal compound settling in. Structurally, the new block could be less flat. Or, the new block could be marginally thicker at the base or the jets could be just a hair different than the older block. Check the flatness and contact patch. You've probably done this but newbies reading the thread should take note. My bet is on the first set of issues. However, I've assumed that you have kept all other variables unchanged. Is the coolant fluid the same? Is the room temperature the same? Etc. etc..