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#1
laptop fan issue
Lenovo B570 1068AHU -- upgraded to 8GB RAM
I heard a noise coming form inside my laptop which disappeared after a few seconds. It was a very rapid clicking noise which sounded like a spinning object contacting metal. My best guess is that the fan was rubbing the heat sink. Since the noise, the fan does not push air out of the exit vent as hard as it did previously. CPU temperatures which normally ran at about 105-120F now run at about 140F.
I have tried blowing out the case with compressed air with no noticeable change. Using Lenovo's field service repair manual as a guide, I have attempted to disassemble the laptop to gain access to the fan. I ran into a problem at the step where the keyboard must be removed. I was applying enough pressure to cause the plastic case to bend. I stopped at this point of disassembly in fear of breaking something.
I have found only one reliable local tech who is willing to go inside the laptop for repair. He insists that I provide him the fan at the time that I bring the laptop to him for repair. (He says that he has been burned every time someone has brought him a laptop without bringing the part(s) when bringing him the laptop.)
I am concerned about purchasing a compatible fan without the ability to see the existing one to get a part number. My research attempts have not returned anything I am confident is the correct part. Online retailers claim that they either do not sell laptop parts or give me two part numbers and cannot tell me which is the correct one. ( P/N 60.41H13.004 or P/N 60.4IH06.002) Lenovo tells me that they won't sell me the fan or offer technical assistance unless the computer is under warranty, or I am an authorized factory service rep. Neither applies to me.
I am on the verge or starting a project which promises to use most of the available processors' capability and available memory. I am quite sure this will generate more heat than under normal use. I would like to resolve the fan issue before beginning the project.
any suggestions?
drpepper
Last edited by drpepper; 03 Apr 2013 at 12:27. Reason: typo