Is it possible to swap out your laptop fan for a lower amperage model to conserve battery power and minimize noise?
Is it possible to swap out your laptop fan for a lower amperage model to conserve battery power and minimize noise?
I purchased a Lenova Yoga 2 13" with an i5 4210 (assuming that's correct) and 8 GB RAM. There was an issue with the fan—it was very noisy. I checked online and found that the fan usually makes noise, which is normal. I replaced the thermal paste (MX-4), which helped a bit (before: CPU temps were 40-50 during load and over 50 when idle; after: 25-30 during load and around 50 when watching 1444p).
The fan is 5 volts with 0.45 amps, and I came across this link: http://www.ebay.co.uk/itm/182144877528?e...Tags=bu=bu with 0.26 amps.
Is it worth replacing the fan? I’m hoping for noticeable battery life improvement and a more than 30% reduction in noise. If you ask what I plan to do with the laptop, I’ll probably play World of Warcraft Lich King (2009) and browse the internet.
so it operates with .2 amps less at 5 volts. on a standard laptop battery this could add roughly 5-10 minutes of extra runtime at most. but since the fan doesn’t run at full speed all the time, the actual power savings will be even smaller. in the end, you probably won’t notice any change in run time.
you can save significantly more power by adjusting the screen brightness. additionally, using a model with a hybrid drive—such as switching to an SSD (some come with one, others with a spinning drive combined)—can lead to substantial savings, often over several amp hours just by having an SSD.
changing only the fan won’t make a difference unless your thermal paste is poor, which would force the fan to work harder than intended.
Weaker fan = higher temps = longer fan runtime = more battery drain. Always a trade off
Thank you for your reply. The ultrabook's low temperature setting usually keeps the fans off, but the CPU reached 58 while the GPU was at 80. It seems the i5 4210 is already energy efficient and the HD 4400 GPU as well; they should handle under 60 with reduced fan speed. This fan is already very powerful and loud even when idle or background apps aren't running. I checked Boost Boost, replaced thermal paste, and all I found online :S.
Are the CPU fan noises excessive or just typical for this laptop model? The tiny fans in laptops spin at high speeds, often louder than desktop fans. I've never seen third-party fans before. If it's too loud, there should be a clear cause—like a background process using much of the CPU or dirty blades.
Thank you for your response. It seems the original fan issue is common among users who compare laptop fans to their own. Interestingly, when the CPU reaches 33%, the fan remains loud while the GPU at 58 (HD 4400) operates quietly. I’m not sure why this pattern exists or how it affects battery life.
🙁
I’ve looked into three programs and found no obvious causes in the background. S
Remember, this is an online forum, not technical support. People help because they want to and they do it for free.
If the problem was that simple then why haven't you fixed it?
I'm done here.