The key for not needing to purchase a new cooling fan/heatsink assembly is getting into the habit of keeping the exhaust vent(s) clean. I usually replace the whole cooling assembly (fan and heatsink). Try it if you feel comfortable taking it apart.
Lenovo b590 fan replacement how to#
I know it’s possible but you’ll have to figure out how to separate the failed fan from the heatsink. If the fan started making noise, most likely there is a problem with the bearing. You can try oil the fan but I don’t think this will be a permanent solution. You can crash the operating system.ĭo I try to oil the fan, replace it, replace only the fan or the fan and the heatsink…… However, if I cut the computer off, sometimes when I cut it on I receive a black screen with a checking disk message.īy cutting off you mean hard power off? When you push on the power button and keep it down for a few minutes?ĭon’t do that. This way you’ll get exactly same fan assembly. Usually I remove the original fan, find the FRU part number and search for a few fan by this part number. It’s hard to figure out which one to order. It’s possible there is more than one fan assembly listed for this model. If I leave the laptop running all the time and put it in sleep mode at night without turning it off, it runs fine with fan noise from time to time.īe careful. The fan makes a terrible racket at times and I have also been getting a fan error and overiding that by hitting the escape key. I didn’t think to do this, but it would be interesting to compare before and after temps when making this repair to see if there is any obvious increase in cooling capacity. If you need how-to information on this subject, be sure your source is credible.Īfter my repair, I thought it prudent to monitor operating temps with a utility program for a short period. Be advised that some youtube videos on this subject are hilariously inaccurate and potentially harmful to your equipment. You’ll need to observe proper technique for cleaning up old thermal compound and reapplying new to complete the job. Replacing the heat sink is never necessary, and is a waste of money. In the vast majority of cases, a drop of oil will do the trick. Only in the very rare instance of a bonafide failure is it necessary to replace the fan. All is silent again, as I expect it to be for years to come. I pulled off the plastic fan body exposing the tiny motor and placed one drop of light weight oil into the recess where the plastic fan shaft slips into the motor. Using instructions posted here and elsewhere, I removed the heat sink and fan assembly. I, too, was plagued by a noisy fan on my ThinkPad T61. It’s possible to separate the fan from the heat and replace it separately as I did in this guide. In my case, the FRU part number is 42W2460. You can search for a replacement assembly using Lenovo FRU part number. If you are installing a used assembly, you’ll have to apply thermal grease on both chips shown below. If you are installing a brand new cooling assembly most likely the heat sink already has thermal grease pre-applied.
Remove the cooling assembly from the motherboard. Lift up the heat sink as it shown on the picture below. Remove four screws securing the heat sink.
Move the left speaker with cables to the right side, so you can access get to the cooling assembly.ĭisconnect the fan cable from the motherboard. Remove two screws securing the left speaker.ĭisconnect connectors shown by two arrows. The picture will help you to rout wires correctly when you assemble it back together. I would recommend taking a close up picture of the lower bracket, so you know how the wires are routed. Remove four screws securing the cooling fan assembly brackets. Remove two screws securing the speaker cover on the bottom. Remove three screws securing the speaker cover.īy the way, the CMOS battery is located under the keyboard. You can find a new replacement keyboard by the Lenovo FRU part number printed on the label. If you are replacing the keyboard, you don’t have to follow this guide any further. In order to disconnect the cable simply lift up the the connector, same way you disconnected the touch pad cable. Lift up the keyboard and place it upside down.ĭisconnect the keyboard cable from the motherboard.
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