Hmm. I have found the pin on Pentium using an online source. Seems completely different to diagram in my book. I wonder why?
The Serpent Rider wrote on 2024-04-26, 15:44:If I remember correctly, for best throttle results without stuttering, CPU frequency must be divided by 8. So for Pentium 4 it's 1600Mhz or 3200Mhz CPU, because Pentium 4 multiplier can't go lower than 12x.
Where does this info come from and does 2000MHz or 2400MHz count? Or is it multiplier that must be divided by 8?
RetroPCCupboard wrote on 2025-01-06, 16:52:Hmm. I have found the pin on Pentium using an online source. Seems completely different to diagram in my book. I wonder why?
The original socket 5 pentiums, coming out at 90 and 100, and a few months later 75, had some pinout variations than later Pentium CPU. There's a couple of referenced online, the original 1994ish documents and then a 1996 specification update. In the earlier one you will see a much different treatment of the multiplier pin, singular, and then this is redefined by 1996 and another added, that's just the example I remember. Anyway, would not surprise me to find a couple of other signal differences between them either.
Edit: since I can't see BF0 or BF1 marked, which was the later multi pin designation, I'm gonna assume that is the 1994 pinout version. Forgot what it was called on that one.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.
BitWrangler wrote on 2025-01-16, 05:01:The original socket 5 pentiums, coming out at 90 and 100, and a few months later 75, had some pinout variations than later Pentium CPU. There's a couple of referenced online, the original 1994ish documents and then a 1996 specification update. In the earlier one you will see a much different treatment of the multiplier pin, singular, and then this is redefined by 1996 and another added, that's just the example I remember. Anyway, would not surprise me to find a couple of other signal differences between them either.
Edit: since I can't see BF0 or BF1 marked, which was the later multi pin designation, I'm gonna assume that is the 1994 pinout version. Forgot what it was called on that one.
Ah, yes. I forgot there was a Pentium socket prior to socket 7. That makes sense.
