the_patchelor wrote on 2021-08-29, 17:23:
switched cache to 2/5 (soldering iron...)
Ugh, forgot to reply. 😀
I think you meant 1/3, right? Because the 800 MHz Athlon already has the 2/5 divider by default, and the cache will generally not work at 400 MHz and definitely not beyond that.
Anyway, in other news, I came across a weird motherboard: the Acorp 7VIA71A ver 1.1 (with the VIA KX133 chipset)
I tested various CPUs with the Goldfinger device, including one of my modified 700 MHz CPUs with cache divider switched from 1/2 to 1/3 (and this CPU works great on AMD Irongate 75x motherboards at up to 1 GHz).
The behavior is very strange: the motherboard does not POST ("- - - -" on the POST card) when setting the CPU at 850 / 900 / 950 MHz.
However It will POST just fine at 700 / 750 / 800 / 1000 MHz 😁
Has anyone encountered something like this?
I mean, it's great that the board does post with a 1 GHz overclock and it's fast and quite stable (albeit, not as stable as my AMD 75x based boards, but faster than them), but I'm wondering what exactly might be causing this.
2 x PGA132 / 5 x Socket 3 / 9 x Socket 7 / 8 x SS7 / 12 x Socket 8 / 11 x Slot 1 / 3 x Slot A
5 x Socket 370 / 8 x Socket A / 2 x Socket 478 / 2 x Socket 754 / 3 x Socket 939 / 4 x LGA775 / 1 x LGA1155
Current rig: Ryzen 5 3600X
Backup rig: Core i7 7700k