Repairing Laptop CPU Fan Manually

HOW TO REPAIR LAPTOP CPU FAN CIRCUIT

Laptop CPU Fan Not Working Properly | Laptop CPU Fan Making Noise | Laptop Cpu Fan Replacement | Laptop CPU Fan Diagnose

Laptop CPU Fan Not Working

If you have a working fan and it is properly connected with laptop motherboard and by bad luck it’s not spinning as usual.
First of all try to update laptop BIOS and if still nothing fixed then come down to CHIP LEVEL treatment of laptop. Now only two thing you can do to make laptop again working.

1. Check +voltage and senser track from fan connector, find out the CPU fan PWM controller circuit, cpu fan supply comes from output section of fan PWM circuit and this circuit not a smmiliar kind for all laptops and notebooks basically +5 voltage required on Vcc pin to spinning fan and to find out Vcc pin of CPU fan read my previous post no CPU COOLING FAN NOT WORKING
check cpu fan controller circuit and it’s all fusible resistor or small coil in circuit with a simple OME meter or continuity meter coil and fuse should be show zero continuity on there surface and if no continuity , found open component then you can bypass them using a unshielded Cooper wire.sure it will work again if other things are OK
and unfortunately no any coil and fuse you found on fan controller section then just resold this section using hot air-gun and check other components of fan PWM circuit if possible at your own way 🙂

2.now you try all you best and still have same problem then now a good news for you because we can power up laptop notebook cpu fan Directly without using PWM controller circuit..
just found out the +5v track on motherboard nearby fan supply track ,connect the fan Vcc pin with +5v track using shielded thin wire jumper on motherboard and some time you can make your fan alive as just remove only the sence pin of fan from it’s connector if + five volt is already coming on the power pin of fan.
..now your fan will start working but it will start spinning in a same speed non stop till the laptop is on. but doing this thing please confirm that which supply given to fan directly by jumper that will be generated after you turned on laptop.

Contact Info

C-1, Panditalay Building, Chunam lane, Grant Road East, Mumbai


+91-9820-6255-20

[email protected]

Himanshu Gehlot
Himanshu Gehlot
06:26 08 Aug 18
This guy (Mr Kishore ) the owner is amazing person with adequate knowledge to get your Laptop/PC repaired. I had perfect experience while getting my laptop get repaired in minimal cost. 5* from my experience. I myself a Software Engineer, Strongly recommend Students/Professionals to visit this guy if you ever have any kind of problem with your devices. And i would like to thanks Mr Kishore(Owner) for Staying late till 11PM , Just to get my laptop get repaired on the same day. For him Customer Satisfaction Comes First. Why i am telling this, because he him self called me two times to ask about the working of my laptop. Who does that in today's world ???
srijith kumaren
srijith kumaren
17:48 26 Sep 18
Thanks to Shanti Laptop service and the excellent service provided by Mr. Kishore ji, a very much knowledgable and honest man. I would recommend this shop as the first point of contact for any laptop or desktop repair in Mumbai. The repair process here is transparent and time saving, because my laptop was checked on the spot at the first time of my visit itself and that too each and every components were examined in front of me and the issue was resolved in a single visit. When other laptop repair shops including the authorized Asus service centre said that the motherboard cannot be repaired upon and needs to be changed, Kishore ji patiently examined my laptop and repaired the issue without having the need for changing the motherboard and that too within an hour, thanks to his expertise. The price of the parts are also very much affordable here. Thank you Kishore ji for making my day great. Your work speaks volumes of the kind of man you are – efficient, organized and result-oriented.
Aniket Kulkarni
Aniket Kulkarni
07:25 22 Aug 18
Mr. Kishor rightly diagnoses the problem in small amount of time. He is genuine and helpful... hats off sir !! Would recommend my friends
POOJA NAGWEKAR
POOJA NAGWEKAR
16:41 02 Aug 18
Best ever place to repair your laptop 👍👍👍👍 The owner is genuine and intelligent person. He is master of laptops yet down to earth person 😊👍✌✌
Ankur Thamke
Ankur Thamke
09:38 14 Jul 18
Have any laptop issues just visit this small shop. Mr. Kishor is the owner, really great guy, helps you fully with issue and does all the work infront of you by offering you a cup of tea. Pricing is reasonable here for all your laptop issues considering market rate.
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