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Anyone have experince with overclocking G4 Quicksilver
Posted by: GaiusIuliusCaesar on 2022-07-08 10:45:50 I saw that the clock speed and voltages on the CPU cards can be changed by changing the resistors on the board. Does anyone have experince with this? I know each chip is different, but is there a certain amount that is reliable to overclock to, say 90% of the time? I currently have the 800mhz card in there but I have a dual 1ghz board and heatsink on order.
Posted by: Byrd on 2022-07-09 00:08:17 As a rule, OEM G4 CPUs do not overclock particularly well, at most 10 - 20% without voltage and cooling mods. Dual CPU cards overclock less, I'd try a bump or two - for example your dual 1Ghz might get to 1.13 or single 800 to 933. PPC Overclocking Station - The House of Moth A consolidation of (eventually) everything regarding overclocking a PowerPC Mac. Updated hi-res graphics and detailed instructions where needed. thehouseofmoth.com There are members on the forum that can transplant later revision G4s onto your CPU cards which overclock nicely.
Posted by: herd on 2022-07-09 08:50:54 The early 7450 and 7455 chips do not overclock well; I usually swap them out for something newer. I would just install your new dual CPU/heatsink, add a fan, and call it good.
Posted by: alectrona6400 on 2022-07-09 09:23:52 I only got my dual 1GHz card to 1.07GHz.
Posted by: GaiusIuliusCaesar on 2022-07-10 16:54:45 As a rule, OEM G4 CPUs do not overclock particularly well, at most 10 - 20% without voltage and cooling mods. Dual CPU cards overclock less, I'd try a bump or two - for example your dual 1Ghz might get to 1.13 or single 800 to 933. PPC Overclocking Station - The House of Moth A consolidation of (eventually) everything regarding overclocking a PowerPC Mac. Updated hi-res graphics and detailed instructions where needed. thehouseofmoth.com There are members on the forum that can transplant later revision G4s onto your CPU cards which overclock nicely. Actually that site is what got me thinking about that. Thanks everyone for the info by the way
Posted by: Unknown_K on 2022-07-10 19:51:22 Early G4's are not overclocking friends like PC chips so I never bothered. The later ones (after Apple ditched then for G5's) seem to be better.
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