First post, by UselessSoftware
I'm having a lot of weirdness trying to set multiplier jumpers on a K6-2/550 on this Soyo. I've found some conflicting information on how to properly set these CPUs.
After some trial and error, I ended up with the following configuration:
FSB: 100 MHz
Multiplier: 2.0x
And the BIOS reports 550 MHz, however when I boot Debian 8 on it, it says 525 MHz.
mike@k6-550:~$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 5
model : 8
model name : AMD-K6(tm) 3D processor
stepping : 12
microcode : 0x8b
cpu MHz : 525.723
cache size : 64 KB
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr cx8 pge mmx syscall 3dnow k6_mtrr vmmcall
bogomips : 1051.44
clflush size : 32
cache_alignment : 32
address sizes : 32 bits physical, 32 bits virtual
power management:
I was seeing the BIOS also report 550 MHz when I had the motherboard multiplier set to 5.5x, however it was extremely unstable and Linux crashed early during the boot process.
So, I guess three questions.
1. What is internally happening with the multiplier on this K6-2?
2. Why does Linux report 525 MHz instead of 550 MHz like the BIOS?
3. Is my jumper configuration currently correct? I assume so, yet I'm not sure why 2.0x100 to get 550 is correct 🤣
If anyone can shed some light on this, that'd be awesome!