Help with gauge cluster on 89 325i

[jonmacs22]

I was hoping someone could give me an idea or two about this problem.
Currently my speedo works fairly well, the temp and gas work 95%, and the tach is non-existent. I tried to replace the SI board with a Programa remanufactured one, but it only caused my temp gauge to not work.
Any and all help would be highly appreciated. THanks.

Jon

[tankman]

i just had my cluster out a saterday and isnt there 2 computer boards? isnt the other one between the gauges and the back could be bad connections

my tach is fone but the speedo hardly works and the temp wont work till its warmed up and then i turn the heat on and it pops into place

but yeah check the conections on the board ide call the dealership as well asn ask a tech worth a shot