* Saved an i815 motherboard with a P3 667 from the trash. * Added another Slot1 Pentium II to a HP NetServer completing this build. - Dual Pentium II 450 - 128MB RAM - 2x Ultra 320 SCSI 10K RPM HDDs - Plextor CD Burner - AGP Riva TNT2 - ISA Sound Blaster 16 Now to decide what to install on it :)

debs3759 wrote on 2021-03-04, 11:55: Pretty sure all revisions only support FPM. I know up to B4 is said to be FPM only. I don't know where this belief comes from... See: Copy code to clipboard 1 486 Green PC VESA/ISA/PCI Chipset 2 SiS 85C496/497 3 Preliminary 4 Rev 3.0 5 July 1995 Filename 2021-03 …

Sphere478 wrote on 2021-03-06, 05:46: Okay. What about a software option for overclocking to 83mhz? None, machines of this era never had such ability. Datasheet clearly shows your clock is programmed by the jumper settings and not via any communication bus.

According to the datasheet, this will screw up a ton of things. Your ISA bus clock, FDD clock, and if the motherboard has USB (looks like it doesn't) it will break USB as it requires a 48MHz clock. In short, changing the crystal is a bad idea.

Hi All, Been reading this forum for a while now, an excellent source of information, and really have enjoyed my stay here. Recently I built a Retro 486 Socket 3 SiS496 machine, however, I made a mistake and damaged it, blowing up the southbridge (dropped a screw into the open case while playing …