Skip to main content
Search titles, bodies, and author names
Found 21,435 posts across 1 forum.

G4 overclocking — #1

I was just thinking about overclocking my Sawtooth G4 400... Anyone got any ideas how far I should overclock my rev. 2.9 G4? From 400 to 450 seem safe? Obviously I can't go over 50…
MacNN Troubleshooting

G4 overclocking — #2

Ain't it fast enough already Cipher?? Well you've already limited yourself to 500mhz so it's pretty much trial and error for your chip between those speeds. I have heard of a G4 cl…
MacNN Troubleshooting

G4 overclocking — #3

heh, a computer can never be too fast . I would take it to 466, but the instructions I found only show how to make 350, 400, 450 or 500... If anyone knows of any decent instruction…
MacNN Troubleshooting

G4 overclocking — #4

I've clocked my sawtooth 350 to 450. Below is a link with the procedure I used. http://webusers.warwick.net/~u1034376/web/ -corwin
MacNN Troubleshooting

G4 overclocking — #5

Thanks - was it hard to do, soldering and all? I have experience with soldering surface mount chips, which are damn small - will that suffice for this job? Cipher13
MacNN Troubleshooting

G4 overclocking — #6

To get to 466 you would have to change the data bus to either 66 or 133, and that is likely more work than just changing the processor multiplier. Has anyone changed the data bus s…
MacNN Troubleshooting

G4 overclocking — #7

Thanks for that 'P'. I don't have a G4 so I wouldn't know............money for the poor??!
MacNN Troubleshooting

G4 overclocking — #8

I think you can actually OC the G4s to beyond 500Mhz...as someone pees did on their Yikes and had no problems with it. The HD bug was somewhat obscure, but had to be addressed none…
MacNN Troubleshooting

G4 overclocking — #9

This was the toughest mod I've done yet. You might blow the resisters by overheating them. I resolved that problem by using wire wrap soldered onto the resistor pads and then using…
MacNN Troubleshooting

G4 overclocking — #10

What about overclocked a G4 500 to 550? I took a look at the motherboard and the processor isn't even ZIF anymore. Really bumbed me out.
MacNN Troubleshooting

G4 overclocking — #11

Some managed to successfully OC their sawtooth to 550. The G4 CPU is on its own daughtercard, and is rumored that the pin-out for the daughtercard connectors of the single and the…
MacNN Troubleshooting

G4 overclocking — #12

I once had a powerbook g3 300 boosted to 450mhz in my hands. It might seem extremely fast, but in fact is wasn't. the cache was too slow to keep up. The result were multiple crash…
MacNN Troubleshooting

G4 overclocking — #14

so wait. Question. I have a copper G3 running at 333mhz. Im going to O/C it, but should I go to 400, or 433? If I went to 433 would my 512 k of cache not be fast enough, and I'…
MacNN Troubleshooting

G4 overclocking — #15

The cache speed is relative to the clock speed... the cache speed is defined by a ratio, not a specific figure, so if you have a 400 MHz Mac with a cache running at 200 MHz, and ov…
MacNN Troubleshooting

G4 overclocking — #16

I know that part Misha, but Micha (misha, micha, whatever hehe) said that the cache was too slow to keep up with the chip, which CAN happen. Thats what makes some athlons so easy …
MacNN Troubleshooting

G4 overclocking — #17

you can always underclock your cache to less than 2:1 speed if necessary to achieve stability...
MacNN Troubleshooting

G4 overclocking — #18

Are you sure you can underclock the backside cache all the time? I mean, what about durring startup when the rom is loaded and before any SCRI extentions? I thought that the cache …
MacNN Troubleshooting
mp.ls