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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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IBM ThinkPad A21m Thermal Problem
Hello everybody.
I need some help with an IBM ThinkPad A21m, 2628-D1S type. It have some problem with the CPU fan.After a long period to be off, it boots ok, and can work for a little while, but suddenly it falls off. After that, it enters in a quick boot-fail cycle. If i leave it off for a while, it can boot again, but go quickly do dead again.The cause is CPU overheating, because the CPU fan dont work. But, the fan is OK (i tested it ith direct poer supply (5V)), and occasionally it starts ok with the notebook boot up, but it stops and donīt restarts. It looks like some power management or thermal sensor failure, or maybe the BIOS... i don't know. Has anybody seen this kind of problem before? Can anybody put some light on this? Thanks from now. Juan Villagra. ERdM |
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