I've got a iMac 233 MHz. Looks like the CPU can be upgraded and/or overclocked. The question: do I need a bigger heatsink for faster CPU? And, is it better if I use thermal paste or is it unnecessary?
A bigger heatsink might be a good idea, but even more importantly, the case will need better ventilation. You should consider installing at least one fan at each of the vents (top and back).
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I've got a iMac 233 MHz. Looks like the CPU can be upgraded and/or overclocked. The question: do I need a bigger heatsink for faster CPU? And, is it better if I use thermal paste or is it unnecessary?
First off, welcome to MacMod!
A fast CPU often means a hot CPU. The cooler the CPU, the more efficient the system. A bigger/better heatsink can help in this. Unless you're overclocking or doing it just for kicks, the oem heatsink should be sufficient.
When applying a heatsink, it is always best to use thermal paste.
Post edited by: shadowboxer47, at: 2005/11/30 21:51
Unless you lap the heatsink, always use thermal paste. I recommend arctic silver. As for the heatsink, bigger is always better and you should make sure there is airflow over it. -maestro
Yep. Thanks for replies. I realize now my question wasn't formed very well. Actually I'd like to know if those iMacs with faster CPU's came with bigger heatsinks than my 233 MHz?
Registered: 11/15/07
Posts: 1797
Loc: Florida, USA
After the 233MHz systems of the iMac Apple basicly rebuilt the iMac. Changed the logicboard layout so the CPU was on the backside of the logicboard and used a rizer heatsink that went from the CPU to the case chasie. So really and turely the case was part of the heatsink.
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