1. Inorder to replace fix or install your new Sony VGNCR309EL laptop fan and heatsink, you will need to open up your laptop. You can do this by removing the screws from the bottom of the laptop.
2. Once the screws have been removed from the bottom of your laptop, you can now remove the keyboard and plastic bezels from your Sony VGNCR309EL laptop.
3. You will see your Sony VGNCR309EL Fan and Heat Skin exposed.
4. Use a screw drivers and remove the screws from you Sony VGNCR309EL HeatSin Fan.
5. Before reinstalling the new Sony VGNCR309EL Fan onto your laptop, you can clean the Sony VGNCR309EL Fan. To clean your Fan and Heatsink, use a can of air and blow out any dirk from your Sony VGNCR309EL Fan. You can also use a paint brush to clean out the dirt from the hard to get areas. Somtimes cleaning your Sony VGNCR309EL laptop fan will actually repair it. Dirt can cause the Sony VGNCR309EL Laptop Fan to make noise and even stop spinning properly.