![overclock mac pro 5 1 overclock mac pro 5 1](http://www.o0o.it/img/mp/20.jpg)
I’ve done 100MHz on top of the original clock speed but never pulled off 150MHz, typically I stuck with a 50MHz overclock for stability and reliability sake. With that in mind, here are the jumper settings and speeds: This will not change regardless of the speed you pick so you are left with 1-4 (red below) to set your new clock speed. Oriented just like seen in the photo, here is the jumper block: Now remember the notch on the blue block, this is pin/jumper number 1. If your G3 is a different clock speed, these jumpers will of course be different for you. The G3 used in this example is a 350MHz model. Remove the blue cap and turn it over, you should now be looking at something like this: Oh yeah! “SPEED/CTL”, it tells you exactly where to go to mess with the speed settings on this thing, isn’t old tech awesome?!. Now note the fun print on the board next to the jumper block: With that noted, go ahead and remove the sticker if present. Now even if you drop the blue cap and don’t remember in which orientation it came off, you can put it back the right way. This indicates the first pin in the jumper block that is hiding under the blue cap. One corner has a bump on the side and the number “1” printed n the board under it. There are systems where the jumper block is under a white cap but the rest of this article will use blue.īefore you remove the sticker and void your warranty, which may be almost about to run out at this point anyway. This sticker may be missing on your G3 but typically if it has never been removed and put back, the original glue is still holding this sticker firmly in place. Next to it is a blue block with a “VOID warranty if seal is broken” sticker over it. Open the Mac and locate the CPU heat sink. This was the first overclock I ever did back in 1999. Overclocking a G3 B&W is remarkably easy.
![overclock mac pro 5 1 overclock mac pro 5 1](https://kongtech.files.wordpress.com/2018/11/img_0882-2.jpg)
Overclocking the Power Mac G4 MDD (Dual-CPU).Overclocking the Power Mac G4 QuickSilver (Dual-CPU).Overclocking the Power Mac G4 QuickSilver (Single-CPU).Overclocking the PowerBook G4 (15-inch Double-Layer SD).The risks are yours and I am not responsible for any issues that come from using the information on this page. Also by overclocking your CPU, you may damage it beyond repair. While I have personally tested/used most of the information on this page, there may be wrong information.
![overclock mac pro 5 1 overclock mac pro 5 1](https://eshop.macsales.com/blog/wp-content/uploads/2012/06/DragMac.jpg)
If you want to know about power supplies have a look here for pinouts etc. This page will be updated over time as I overclock more. I figured I have enough materials to slap a page together with all the resources on it.