Today I connected the modified wiring: I added wires using spade connectors to parallel the original fans so no existing wires needed to be cut and spliced. Figured it would be easier to do and also easier to return to normal if and when I replace the fans.
It seems to be working so far, I'll watch the cooling for the rest of the day then post photos if it continues to do so.
One weird thing, the one still working fan didn't start up after I returned power. When this first happened, that fan had stopped then started working again. Maybe I should just hit it with a stick!
By the way, the new fans are 3 Watt fans, only draw 260mA each but they are much closer to the fins.
