z97i-plus

Hi, I've had my Z97I-PLUS custom build PC for about 3 years been working fine; last year it switched itself off and shows similar symptoms...Pressed Power button On, fan spins for a second and then stops, PC does not boot. So last year I removed the CPU cleaned up and applied new thermal paste...

I've recently moved my old system from the Asus Z97k to the mini-itx version Z97i-Plus. The only thing now is that the fans and pump aren't detected in corsair link, and they are spinning much quicker and louder than I would like. I've tried everything to get them detected with no success...