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T42 fan

T40/T41/T42/T43 Series
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hixs
Posts: 1
Joined: Tue Sep 06, 2022 6:00 pm
Location: Mechanicville, NY

T42 fan

#1 Post by hixs » Tue Sep 06, 2022 6:14 pm

Need help Identifying fan wires on t42 fan to test the fan. 1) red----- 2) blue---- 3)orange--normally red would be pos+ while black is neg- I'm guessing orange is the signal wire?? I don't want to cook it if it's good. If it is there's other issues I need to look into. I've tried online but all I can find is how to replace it.

np247
Posts: 2
Joined: Fri Nov 04, 2022 7:59 am
Location: London, ON Canada

Re: T42 fan

#2 Post by np247 » Fri Nov 04, 2022 8:39 am

Get a multimeter and place the leads on the MoBo. Or just replace it.

I've replaced the fan before -- it's not worth it. Replace it + heat sink -- much easier.

kfzhu1229
Senior ThinkPadder
Senior ThinkPadder
Posts: 2340
Joined: Tue Sep 22, 2015 10:59 pm
Location: Toronto, Canada

Re: T42 fan

#3 Post by kfzhu1229 » Sat Nov 05, 2022 11:58 am

hixs wrote:
Tue Sep 06, 2022 6:14 pm
Need help Identifying fan wires on t42 fan to test the fan. 1) red----- 2) blue---- 3)orange--normally red would be pos+ while black is neg- I'm guessing orange is the signal wire?? I don't want to cook it if it's good. If it is there's other issues I need to look into. I've tried online but all I can find is how to replace it.
Pretty sure from when I tested them it's red and blue and then the fan will spin at full blast.
If the fan feels noticibly jammed you can carefully pry open the housing, pull the fan blades directly off and then lubricate the fan.
If the fan spins freely when you touch it but still won't spin on the laptop and gives you a fan error, and testing it directly with red and blue doesn't spin either, you gotta replace it.
Dell Lat CP MMX-233 64mb 40gb W2k
600 PII-266 416mb 40gb WXP
T23 PIII 1.13ghz 1gb W7
Precision M4300 X9000 8gb 160gb WUXGA Ultrasharp fp W10
T530i 15.6" i7 16gb fp W10
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A30p PIII 1.2 1gb W7 (IDTech)
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