I think there are not many tests with SDRAM, so even though there is not much movement in this thread, I share my tests.
The CPU-Z voltage is wrong, my DMM reads 1.69v on the processor's VRM coils.
Since it is stable with less voltage and I think the limit is in the chipset, not the CPU, I made a small undervolt, that's why the voltage is low.
The graphics card is a Geforce 3 from Leadtek. The RAM memory is 7.5ns with Infineon chips.
It is not an extreme overclock, it is designed for 24x7 use and the computer case is closed. There are no modifications in terms of driver configuration, I had to use Powerstrip because the latest version of Rivatunner did not correctly detect the GPU frequency and I did not want to waste time. I will end up modifying the BIOS of the graphics card with these frequencies.
The motherboard is a polymoded Epox 4B2AE (https://theretroweb.com/motherboards/s/epox-pronix-ep-4b2ae).
CPU 16x128mhz, 512mhz FSB and RAM 170mhz.
The maximum stable FSB frequency is 136mhz but only with one RAM memory module, when adding the second one it starts to give errors in Memtest, I chose to stay at 128mhz because 128x4=512, and I found it funny, and I was looking for the stable 24x7 overclock to be able to use the computer calmly.
I opted for Windows ME because I thought it looked good on a Pentium 4 with SDRAM, both equally strange.
Edit, added photographs of the motherboard and graphics card.