dionb wrote on 2025-05-05, 20:57:

Take the Asus P3B-F - some have it, some don't. It depends on the revision. Up to revision 1.03, it can't supply less than 1.8V, from rev 1.04 it can go down to 1.3V

Just saw this and wanted to point out that, while it's probably true that some have it & some don't, it's not as clear-cut as saying "rev 1.04 supports 1.3V while rev 1.03 doesn't." For instance, I have two Asus P3B-F rev 1.03 boards that do support Coppermine CPUs / 1.3V out of the box, since they both come with the HIP6020ACB VRM controller.
Also, looking on TheRetroWeb, that particular 1.03 board (seen in the photos) comes with a US 3007CW controller, which also supports voltages down to 1.3V (and, in fact, Coppermine is listed on the "CPU family support" tab).

Yes, on the borderline it can differ from board to board (and even in some cases from CPU to CPU on the dual boards). TheRetroWeb also has the definitive FAQ on that:
https://theretroweb.com/motherboard/manual/th … .pdf#p2b_f_vreg

dionb wrote on 2025-06-03, 06:03:

Yes, on the borderline it can differ from board to board (and even in some cases from CPU to CPU on the dual boards). TheRetroWeb also has the definitive FAQ on that:
https://theretroweb.com/motherboard/manual/th … .pdf#p2b_f_vreg

Ah, OK. So, based on that FAQ, it seems that all P3B-F boards with a revision >= 1.03 should support Coppermines with no exception. Makes sense, since I've never encountered one that doesn't (that said, I've only tested three or four rev 1.03 boards myself, so it's not exactly a large sample size).

Regardless, even the boards that don't support Coppermines out of the box, can easily be modded to handle them by replacing that buck controller IC (if you have soldering experience, it's a 10 minute job, and you can still find these ICs for sale, on eBay & co).

predator_085 wrote on 2025-06-02, 16:57:

Hm, I used to have an Asus CUV4X-CME before it broke. It was used as a home for my Voodoo 3 2000 AGP. It ran with a Pentium III 800MHz Coppermine, and there was nothing wrong with it. However, I couldn't compare it with other Socket 370 mainboards. The Asus was my first and only Socket 370 system. This means I cannot rule out that there might be better-running Socket 370 boards out there in the retro world.

Thanks. So you did run into any other particular problems when setting the system up. Did you run into any compability issues with your sound cards or was everything a rather easy path. the reason why i am asking is cause certain via chipsets have the reputation to be rather picky with certain sound cards?

this discussion here

bloodem wrote on 2025-06-03, 06:10:

dionb wrote on 2025-06-03, 06:03:

Yes, on the borderline it can differ from board to board (and even in some cases from CPU to CPU on the dual boards). TheRetroWeb also has the definitive FAQ on that:
https://theretroweb.com/motherboard/manual/th … .pdf#p2b_f_vreg

Ah, OK. So, based on that FAQ, it seems that all P3B-F boards with a revision >= 1.03 should support Coppermines with no exception. Makes sense, since I've never encountered one that doesn't (that said, I've only tested three or four rev 1.03 boards myself, so it's not exactly a large sample size).

Regardless, even the boards that don't support Coppermines out of the box, can easily be modded to handle them by replacing that buck controller IC (if you have soldering experience, it's a 10 minute job, and you can still find these ICs for sale, on eBay & co).

is also quite interesting since the p3b-f from Asus is not out the question too. It is great know what can be done to improve the board via modding. The fastest cpu without modding for the asus board would be something like this
www.cpu-world.com/sspec/SL/SL4C8.html right?

I am more inclined towards a board with intel 815e because it is sighly more modern but classic intel 440bx system is something i still see a viable option.