HP DV9000 no-display & noisy fan
After 2 weeks of listening to a very noisy fan on my HP DV9428nr Laptop PC, I decided to take it apart to see if I could fix it or at least confirm the part number to order a replacement fan/heatsink assembly (438606-001). It took a little over an hour to disassemble the unit to where I could get to the fan. As it turns out, the problem was dust and hair inside the fan motor. Removing 4 screws from the fan assembly allows the fan to separated from the motor so the windings can be cleaned out. Another hour to re-assemble, and now the fan is quieter than ever! 🙂 However, the machine won’t properly boot up, all I get is a blank screen. 🙁
This link was somewhat helpful:
However my machine is not that consistent. Maybe 1 out of 20 times it will boot up, usually only if I have the keyboard and the LED panel unscrewed but connected.
Turns out that my particular model (dv9428nr) was part of a 2-year warranty extension due to motherboard issues. HP replaced the motherboard for free! Now it works perfectly.
