YouTube Video Lagging Problem in Computer
Received PC for Repair customer said Internet browsing working properly but when we start YouTube Videos Are Lagging. PC is having AMD Athlon II x270 Old generation CPU installed with OS win10 as per information from the customer.
Slow speed sometime because of dust problem, when CPU fans Clogged by the dust & Motherboard struggling to maintain the Temperature. hence opened the Cabinet for physical inspection.
PC seems Cleaned no dust found …. tried to spin all the fans manually it rotates smoothly. Connected the PC on my setup and turned it ON. Found all FANs working fine.
OS Boot properly, now checked all resources in Task Manager everything seems OK. Opened some applications & files even some stored Videos from the HDD everything is working fine also checked Internet websites & videos from the YouTube everything works smoothly. I kept the PC working for 15 minutes then again checked PC for the performance in Task Manager this time in ideal condition CPU is showing 100% & utilized & opened internet browser this time YouTube video is lagging. Checked for background applications everything is OFF.
Checked Inside the PC & found CPU Fan is not spinning. Rest of two Fans (Chassis & SMPS) are working fine. I restarted the PC opened the BIOS setting & under PC Health section I found CPU Fan showing 0 RPM.
I tried to move the Fan wings by finger it started to spin & BIOS showing 2019 RPM. Kept PC running, this time fan spinning good, again I turned OFF the PC & again turned ON. This time FAN jerk but not spinning. I just pull up the CPU FAN connector & refit it; it starts spinning…Loose connection?
Again switched OFF the PC & restarted again, this time also FAN Not Spinning I checked Voltages on CPU FAN Connector meter shows approx. 12v. seems OK for Desktop CPU FAN.
I checked the FAN wing blades they spinning free when manually jerked by the finger, I powered the fan it starts spinning now I pressed on FAN TOP middle circle area by the finger Fan stop spinning, I release the finger still fan not start to spin. Indicates FAN lost Potential to spin. If safely giving the fan blades a manual push causes it to start spinning on its own, it almost certainly indicates a Bad FAN.
I am not having this old type fan for testing, asked customer to Wait till I arrange the part.
this original Fan is not available with our Part vendor so he provided me compatible one.
The next day, after receiving the replacement fan, I connected it to the PC. I saw that it was spinning properly…
Both FANs connector having different 4 pin Colors wires as follows.
Checked working RPM under the BIOS Setting.
Bios Showing 4299 RPM when CPU Smart FAN control Enable.
Assembled everything back & kept the PC in Burn- in test for 5 hours. After 5 hours on idol mode CPU showing 2% Usage. it works smoothly without any lagging Videos on internet.
CPU is experiencing thermal throttling. When a processor gets too hot, it automatically slows down its clock speed to reduce heat and protect itself from permanent damage. This drop in speed results in noticeable lag, stuttering, or lower frame rates during games and intensive tasks.
Now this is solved Lagging in Internet videos & PC is Ready for the pickup.
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
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Note: You can check his previous repair articles on How To Fix LED Bulb
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