Question Laptop fan will not start spinning

geo_5_

Commendable
Apr 19, 2017
9
0
1,510
0
Hello.

I recently had to reflow my laptop gpu to get it back to being functional. The reflow worked and I then started reassempling the laptop. Everything worked fine but I noticed I forgot to put back a component. So I had to take it apart again. After I reassembled it together I noticed the fan didn't spin. I got no error during post and booted windows.

Things I have tried :

Checking any loose cables.
Checked with bios l. (even did default setting and a hard reset cmos battery)

Checked with speedfan: I get 3000+ rpm and some other time I got 1000+. Though the fan doesn't spin a bit. I think these are false readings.

I changed power settings to default.
I even started a game to see if the fan started then, but nothing.

Finally I replaced the fan with a new one but still the same issue.

Strange thing is that I don't get a single warning /error, not even during post.

Thanks in advance.
 

geo_5_

Commendable
Apr 19, 2017
9
0
1,510
0
Hi thanks for the reply.

After the reflowing process it was working normally. I think I short circuited it because when I started plugging in things I forgot the power on and touched it with my bear hands. Can I tell with a polymeter?
 

geo_5_

Commendable
Apr 19, 2017
9
0
1,510
0
Tried both but none managed to make the fan spin. Also the motherboard doesn't seem to be toasted or something around the fan.
 
Did you reapply thermal paste before mounting the heat sink?

Check the connector of the fan, resolder the pins
check the voltage of the pins if possible with a multimeter
check if the fan can spin freely

How hot is the laptop getting? Use coretemp to have a look
 

geo_5_

Commendable
Apr 19, 2017
9
0
1,510
0
Yes, I reapply thermal paste every time I attempt a fix. The fan works normally to another laptop I tried.

I will check with a multimeter and report back.

I'm really grateful to you for your help.
 
Thread starter Similar threads Forum Replies Date
V Laptop Tech Support 0
Arthurdensley Laptop Tech Support 1
LilApplication Laptop Tech Support 3
Pasiya98 Laptop Tech Support 3
Mohamedd123 Laptop Tech Support 1
JeanLucG Laptop Tech Support 0
B Laptop Tech Support 1
M Laptop Tech Support 0
celassad Laptop Tech Support 3
N Laptop Tech Support 15
Tyrrella Laptop Tech Support 1
Kushal Shah Laptop Tech Support 3
evilgoobur Laptop Tech Support 3
Zkneedhelp Laptop Tech Support 2
H Laptop Tech Support 1
Rishabh103 Laptop Tech Support 1
C Laptop Tech Support 1
justin0106 Laptop Tech Support 7
Nohen Laptop Tech Support 4
C Laptop Tech Support 1
Similar threads
Question pc health monitor (Toshiba laptop) cooling diagnostic does not start
Question Laptop's showing Weird lines and dots...and doesn't start up
Question Laptop won’t start after replacing thermal paste
Question My battery randomly starts and stops while charging(starts to happen when battery percentage is over 80%) why?
Question Problem in starting power laptop toshiba c850
Question Gigabyte P35xv3 : Laptop starts then shuts down after 10 secs.
Question ASUS Laptop doesn't start from battery but did work if charging cable removed from laptop at the right time ( does not rn)
Question HP laptop will not boot unless I press any F key right after pressing the power button.
Question Laptop doesn't start, power led light is on
Question Laptop Built in battery plugged in suddenly reboots and it takes long to start again...battery showing 99% before it reboots
Question Laptop wont start
Question Laptop does not start in one go
Question asus q535u laptop will not start
Question Please help my asus laptop wont start and then keep restarting while playing
Question Why does my laptop screen sometimes start flickering ?
Question Laptop has black static, some times it starts, other times it shows black static (kind of)
Question Aspire V Nitro not booting
Question Toshiba laptop stuck starting up on Toshiba Leading Innovation
Question Laptop fan broke, laptop won’t start
Question Windows 10 not starting up shows black screen on my connex laptop slim book 2. Only power light is on

ASK THE COMMUNITY

TRENDING THREADS