RaiderOfLostVoodoo wrote on 2021-11-16, 17:49:
I did some research on overclocking Athlon XP and found out, that AMD started locking the multiplier at some point. Multiple sou […]
I did some research on overclocking Athlon XP and found out, that AMD started locking the multiplier at some point. Multiple sources stated that AMD started locking the multi in week 35 of 2003, but still sold CPUs with an open multi at this point. Starting with week 43, all CPUs had their multi locked.
So I got myself a sample from week 30, to be sure it has an open multi:
To my surprise I can't change the multi. I did lower the multi to 12 and it doesn't post.
Anyone got an explanation for that?
Might my CPU be a fake?
I've had a few socket A boards and all of them started without issues when I tried to set multiplier on locked CPU.
That's why I think that there might an issue with your motherboard BIOS. I would try few another multipliers - lower and higher than default one. If this won't change anything, then try another BIOS (newer or older one).
And if this won't help... you can always do mobile-mod and use software like WCPUID to change multiplier. It should be possible in range (IIRC) 3 - 24x for desktop CPUs.
Pentium 4 2.4C, ASUS P4C800-E Deluxe, 2 GB RAM, GF FX5700 128 MB AGP, SB Audigy, Chieftec GPS-400AA-101A, Win XP SP2
Athlon XP 2000+, MSI KT2 Combo, 512 MB RAM, GF FX5600 128 MB AGP, FM801, FSP 400-60PFN, Win 98SE