Retrieving data from dead pc with Raid 10

I have a Dell XPS 420 that has a great deal of data that I want to retrieve. I hadn’t used it in a while, and in the midst of powering on, it died. Now after a bunch of diagnostics, I’ve concluded that either the power supply or the motherboard or both are damaged.
I don’t want to deal with replacing parts and debugging and all that, unless it’s the only way.

As far as I can recall, I had it configured to run raid 10, and I have 5 sata hard drives that I want to retrieve data from.

Can anyone recommend the best way to go about getting this data?