That should work with everything before Tualatin chips (including your CPU).

For cooling, I suggest a low profile copper cooler from, for example, Startech, and an overkill fan, cable tied to the heatsink (or to something nearby).

I think the slotket is good to go, but might need to make sure the motherboard BIOS has latest microcode for PIII EBs

Yes normal 370/Socket A type heatsink that's not fat in the dimension at right angles to the clip will work. However, you probably want to bear weight in mind and use something on the lighter side of adequate. Interference with other things on the board might be possible with tall sinks like some of the orb variety too.

Thanks for everyone's response. Would this be a good option?

https://www.ebay.com.au/itm/355029558576

Too noisy. Look for small Intel OEM box cooler revisions or low-profile copper coolers.

Ok how about this? https://www.ebay.com.au/itm/126196806151

May be too wide for slotket - north bridge radiator will be in the way.

The best would be an Alpha PEP66(T) if you are lucky enough to find one. This one does also cool the north bridge which does help a lot when running FSB beyond 133. This one was made especially for Slotkets.

The coolers you've posted will work just fine. But I highly recommend the Startech copper cooler.

I've never seen that slotket you're using, so I can't comment on that. The silkscreens indicate coppermine compatibility, but usually coppermine slotkets have a voltage clamp IC on them.

frankmonk wrote on 2023-12-03, 14:26:

The best would be an Alpha PEP66(T) if you are lucky enough to find one. This one does also cool the north bridge which does help a lot when running FSB beyond 133. This one was made especially for Slotkets.

I have a Google search saved for that one. Thanks

smtkr wrote on 2023-12-03, 19:15:

The coolers you've posted will work just fine. But I highly recommend the Startech copper cooler.

I've never seen that slotket you're using, so I can't comment on that. The silkscreens indicate coppermine compatibility, but usually coppermine slotkets have a voltage clamp IC on them.

I think you are referring to this one. Only problem is its 3x the price of the CPU 🙁

https://www.amazon.com.au/gp/product/B00006B8 … X2GIMA114Z&th=1

My 1Ghz cpu on slotket runs fine with a stock Intel heatsink.

There is also a photo of such a combination in this article about the same " Eagle 30-900SP-000-43c" slotket that you have.
http://www.dansdata.com/slotkets.htm

If it fits, that box cooler would be more than enough for 1Ghz Coppermine. Intel fans are also quiet and more reliable.