I aquired this Toshiba A45 S121 with a known heat problem. Got a really good deal. After a while the system will shut down. After cooling off it always starts up. I believe the (CPU)cooling fan blows for a while but then seizes up or something. It is real hot where fan and fins are.
Anyway, I disassembled the machine and removed fan. Now I want to test it on the bench. I used a plug-in-the-wall 12V 800ma DC source and stripped back the red and black wires (so I can restore if necessary) and applied voltage and fan does not move. Polarity is correct. There is a third wire coming from fan, it is grey. I'm not sure what that's for, I suspect it is a temp sensor or control wire.
I don't want to buy a new fan until I'm sure it is the problem.
Can someone straighten my head out. Maybe my voltage source is not good enough or the grey wire needs something???
Thanks!
Anyway, I disassembled the machine and removed fan. Now I want to test it on the bench. I used a plug-in-the-wall 12V 800ma DC source and stripped back the red and black wires (so I can restore if necessary) and applied voltage and fan does not move. Polarity is correct. There is a third wire coming from fan, it is grey. I'm not sure what that's for, I suspect it is a temp sensor or control wire.
I don't want to buy a new fan until I'm sure it is the problem.
Can someone straighten my head out. Maybe my voltage source is not good enough or the grey wire needs something???
Thanks!