Now a short description how to upgrade an Apollo 4040 (3040) to 4060 (3060)
As usual the mandatory “Before” picture:
![](https://wordpress.hertell.nu/wp-content/uploads/2023/08/IMG_20230812_144308-1024x768.jpg)
This is equipped with a 40MHz 68040.
So upgrade is easy. you need to find the roms for the Apollo 4040-060 rom and program it to a 27C010 prom. (or I used a 27C1001) I will not include the files here but are not hard to find on the interwebz
Remove the 68040 cpu, it is in a socket. I have heard SOME boards have a 040 socket only in that case you need to add headers to fit the 060. I will not include instructions for that here.
Also remove the 2 (sometimes more) jumpers you see close to the cpu, it is marked “DO NOT REMOVE” but here do that. instead you add a voltageregulator similiar to one you need to use for a Apollo 1240 when upgrading to 060. Add a jumper for the “060” location and move the jumper close to the SIMM socket from 040 to 060.
Flip the board.
![](https://wordpress.hertell.nu/wp-content/uploads/2023/08/IMG_20230812_160312-1024x768.jpg)
Under the “060” socket there is a empty pad marked 060-R0 put a 0 Ohm resistor there.
also make sure “CLKEN” is connected to “GND” and remove the resistor below the CLKEN resistors.
And change the 80MHz oscillator to a 50MHz. and you are DONE!..
(you need to install 68060.library etc etc yadda yadda as usual)
OVERCLOCKING.
To overclock the board: move the CLKEN resistor to the pad to the right of it.
move the “040/060” jumper to the 040 mode. put a oscillator like a 80MHz and it will be 80MHz.
REMEMBER this will HALF the memoryspeed!
![](https://wordpress.hertell.nu/wp-content/uploads/2023/08/IMG_20230812_170701-2-1024x768.jpg)
While you are on it. replace all the electrolytic capacitors are they are starting to leak.
![](https://wordpress.hertell.nu/wp-content/uploads/2023/08/IMG_20230812_170710-1-1024x768.jpg)
And you are DONE!
And About MACH chips. 130 will work perfectly for 060. there are a roumor that you NEED to have 131 this is false!