I replaced the LC's 68LC40 with Quadra's 700 68040, but without the heat sink as it was in Quadra. Is this ok? or it will overheat? is the 68040 much hotter than 68LC40 version?
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LC475 -replaced 68LC40 for 68040 CPU
- Thread starter slomacuser
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That's if you want to do it properly ;-) I ran a 475 web server for over 6 months with a full 040, no heatsink AND I disconnected the internal fan coz it was too loud. I eventually re-connected the fan but never bothered installing a heatsink. I then used that 475 for a further 2 years before I retired it to the garage (and set up a Q800 as a server instead) What I'm saying is that while a heatsink is recommended, it probably won't hurt you if you don't have one.
Just have a look at the clock speed specifications of processor and motherboard. If the mobo is stock (25 MHz) it should do no harm to a MC68040 specified to run at at least 25 MHz (as any 040 sourced from a Mac will be), even without a heatsink. Like Flash! I use a 475 with full 040 but w/o heatsink; no problems within five years. If you have a heatsink at hand, consider to throw it in as it should improve the long term reliability of the system, however
A good rule of thumb. :b&w:
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