Thanks. The only reason why swapping the crystal may not work is that it’s a 20MHz part, so a 25% overclock may be asking a bit much. Certainly clocking a 25Mhz part up to 33 (ie 33% increase) was pushing it BITD. Since it’s a decade or two before I started overclocking (except my StrongARM) I was wondering if anyone had any real-life experience on an x86 of that vintage - closest I’ve come is upgrading the CPU on a SunPCi card!
Edit: Reading around the subject, it would seem the motherboard changes were typically to tell the BIOS whaich CPU was fitted, so it could use the cache?
The equivalent on the Aleph-1 card is to change which CPU is fitted in !PC’s config. Since the BIOS is held in the Arc’s RAM, a Beebug review at the time claimed this was the sole difference between 386 and 486.
Edit: Reading around the subject, it would seem the motherboard changes were typically to tell the BIOS whaich CPU was fitted, so it could use the cache?
The equivalent on the Aleph-1 card is to change which CPU is fitted in !PC’s config. Since the BIOS is held in the Arc’s RAM, a Beebug review at the time claimed this was the sole difference between 386 and 486.
Statistics: Posted by Boydie — Tue May 07, 2024 10:30 pm