I am completely new to ownership and maintenance of any pinball machines... My terminology may be completely inaccurate, I apologize if this is the case...

I recently purchased a Williams SlugFest cabinet and am attempting to repair some wire connections on the CPU. The CPU was changed by the previous owner for a Rotterdog CPU (Williams WCP98 CPU Board; Part Number MPU089). On the board there are what I now believe are called 'IDC connectors'. These connectors I believe are causing some issues with the functioning of the equipment. As a result I purchased what at the time I believed would be the correct part to resolve the issue (https://www.marcospecialties.com/pinball-parts/CKWMS-A-12742) however after the parts arrived I discovered that they do not appear to be what are currently on the board. I also purchased a 110 punch down tool thinking that it may be able to get the wires landed properly.

If anyone could point me in the right direction for what parts/tools I need to purchase to fix these issues, and/or any general advise for resolving the problem as I have never worked on any boards like this before, I would greatly appreciate it!

CPU Board Example 01 (resized).jpg

CPU Board Example 02 (resized).jpg

CPU Board Example 03 (resized).jpg

CPU Board Example 04 (resized).jpg

Rotterdog CPU 01 (resized).jpg

After crimping the wires and getting them into the female ends of the molex connectors, how does one attach them to the board? Is the connector holding the IDC connector in the same male end or would one need to somehow remove the old male end and replace it with a new molex male end?

Thank you for all of the advice! With your advice and the help of this 'Re-pinning Pinball Connectors' video,

I was able to fix the issue! New Molex Connectors (resized).jpg

The necessary tools & parts were: I used the 'HT-225D Full Cycle Ratchet Crimping Tool with interchangeable die set HT-225D', available at https://www.amazon.com/HT-225D-Cycle-Ratchet-Crimping-interchangeable/dp/B007JLN93S,Crimping Tool (resized).jpg and the Williams CPU Connector Re-build Kit, available at https://www.marcospecialties.com/pinball-parts/CKWMS-A-12742.Williams Connector Rebuild Kit 01 (resized).jpgWilliams Connector Rebuild Kit 02 (resized).jpg