idan182 wrote on 2022-06-20, 10:15:
Here it says it supports up to 733mhz max: https://computer.fandom.com/wiki/Intel_CC820
You can try to install a faster Slot 1 Coppermine. Tualatin will most likely not work, but may with the right parts and right BIOS version.
One issue is that the board was made by Intel and Intel had the habit back then to purposefully lock out faster clocked CPUs with many of their BIOS files.
Tualatin doesn't come in the Slot 1 package natively, so it would be a crapshoot whether or not it will work. At any rate, you'd need a slotket to even try a Tualatin.
Higher clocked Coppermines are usually easier to find in s370 package, but then you'd need to get a slotket that will work with your Intel-made board and still there's no guarantee it will work.
Personally, I think I'd at most try a faster clocked Slot 1 Coppermine and see if that works. If it doesn't, I'd stay put with the 733MHz Coppermine as that's still a nice CPU overall with very low TDP.
Concerning your board...what people like Dionb are mentioning is...well you could wsay that you are asking advice on how to use a vase properly, but it turns out your vase is actual Roman vase or something (I'm just trying to explain a bit here, don't take it too literally). It would be kind of a waste to expend such a little treasure for something like overclocking or blind experimentation. CC820 is really somewhat legendary if you ask me, in a somewhat similar way to how the earliest NVidia leafblowe...I mean FX5800 graphics cards are bad, so bad that they were few in numbers which makes them legendary today 😜
Your board was one of the recalled ones and it may be very rare. Heck, you could perhaps sell it and for that money you made get back 5 similar (but not exactly same) boards that will work with a 1GHz Coppermine (or with a Tualatin).
Your board is so uncommon nowdays, even if you were to run it with the Coppermine 733 with some benchmarks and post the bench results here, it would be appreciated.
I'd treat that board like a real treasure if I were you! It's very likely you will never get one like this one ever again, it's really that uncommon.