MacBook, New Logic board no fan

jw 1

macrumors member
Original poster
May 17, 2008
37
0
Hello, I just replaced my 2.2Ghz MacBook logic board with a 2.4Ghz 661-4709. I noticed that the fan is not coming on. Is this a compatibility issue? I tried a used 2.4Ghz board and the fan worked fine however the computer would not boot. I returned the board and purchased a new board and now the fan will not come on. The computer boots right up and everything (that I have tested) works fine. Everything except the fan. All the connections appear to be the same??? Any suggestions?
 

jw 1

macrumors member
Original poster
May 17, 2008
37
0
After closer inspection the fan appears to be working but it is very slow. Anyone know if his is normal? I had the fan hooked to another board ant it appeared to operate at a faster speed.
Thanks.
 

jw 1

macrumors member
Original poster
May 17, 2008
37
0
What should the fan speed be when the MacBook first starts?
 

jw 1

macrumors member
Original poster
May 17, 2008
37
0
Fan is max 6000 min 2000.
Install a stat utility like iStat that will allow you to monitor fan speed. IT might be on but very quiet.
OK. I'll check that out. I purchased a new fan just in case.
Thanks for the information.
 

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