I don't know much about (super) socket 7 cpu's so am I correct in the following?
It works on 400MHz with a 100MHz FSB and multiplier of 4 in Super Socket 7 boards but when you put it in a regular Socket 7 board, it runs with a 66MHz FSB and multiplier of 6?
If this is the case, can it be run with a multiplier of 6 in the Super Socket 7 board?
The CPU remaps the x2 multiplier to x6, so whenever you select the x2 multiplier setting (on any board), it will run at FSBx6 MHz.
Is it possible to get it running at 200MHz with a 100MHz FSB in a SS7 board?
And what about the 450AHX or AFX, do those also remap the x2 multiplier to x6?
Unfortunately not. Because of compatibility reasons AMD built the CPU so that it interprets the 2x multiplier on the mainboard as 6x. You will find that motherboards don't have a 6x multiplier. That's why AMD did what they did...
The Intel Pentium does something similar, but the other way round. It interprets the 3.5x multiplier as 1.5 which allows it to run at 100 MHz.
BTW, the K6-2+/K6-3+ CPUs have another trick up their sleeves: They remap 2x to 6x, but they also remap 2.5x to 2x, because they don't support the 2.5x multiplier.
Oh that's interesting to know 😀 Might drag out my K6-2+ and benchmark it will all the multipliers and cache settings...
According to this thread the multiplier of K6-2+/3+ chips can be set by software, even to 2x:
Overclocking software for AMD K6 CPUs
