Swapped the CD-RW drive with an Apple 32x CD-ROM drive (Matshita CR-589-B) on my 486 build as the CD-RW drive doesn't work with 486 systems when connected to the secondary channel. Tested my theory with a CR-585-B CD-ROM drive that my Packard Bell has installed externally with the 486 build and that worked. I kept thinking that it was a bad IDE cable, but it wasn't and not only does the system run better than before, it's basically complete and 1 thing to do is wait for the 512KB L2 cache to arrive (stuck in another state), the 5x86-P75 to arrive (for my Packard Bell to test my 3.3V CPU support mod), and swap CPUs around as the Kingston TC-5x86/133 is between the DX4-100 and Pentium 75 speed using NSSI to do benchmarks. Probably because it's WT cache or the slower version of the 5x86-P75, which is a possibility, but I digress.
Discord: https://discord.gg/U5dJw7x
Systems from the Compaq Portable 1 to Ryzen 9 5950X
Twitch: https://twitch.tv/retropcuser