Likely it is the system cooling fan or processor cooling fan so check to see if you would like to put it back under a manufacturer warranty if possible or whether you have the skill to review, follow, and carefully open up and inspect and clean and reassemble your notebook PC. What price is it worth to you to fix this problem - the downtown computer retailer that sells CDs and PCs and appliances will charge you to fix it. Again, most likely it is a simple small fan inside the PC. It could just have lint, dust, fuzz in it and after a clean out could work quietly again. The CPU cooling fins or cooling fan blades after cleaning will allow the CPU or system to operate more coolly, and then the fan RPM could drop a bit and the notebook PC whining sound may decrease. Oh, finally, putting the notebook PC on a grate or grill or a notebook cooling ventilation platform could alleviate the problem if it is just lint or dust.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The high pitched noise you hear is most likely caused by the CPU cooling fan on your laptop. If you suspect that this high pitched sound is caused by the fan going out, you can spray your laptop with compressed air to get the dust off of the fan. This solution will make your laptop work at a cooler temperature, and reduce the noise.
If the problem persists, seek a certified laptop repair specialist.
The problem might be the power supply charger that plugs into the laptop, unplug the charger and run the laptop on battery power, is the high pitch sound there when you power up? if this solves the problem, it is the power supply charger that is the cause.
hi Im Kapila from Sri Lanka. to solve the noise like a siren, open the sound mixer (double click on the speaker icon on the task bar) and mute the mic on that, or decreas the mic level. its OK, you can adjust it the audio settings perfectly via double click on the audio icon in control panel. not enough the details for flickering problem. send the message to firstname.lastname@example.org regarding that
Are you getting a high pitch screaming or a grinding noise? The Fan on the heatsink sometimes getting clogged with dust and over time this can cause the computer to turn itself off. Dependant on a high pitch scream this could be a number of problems, memory modules loose or faulty?? Would need more info about the type of sound..
High pitch noise usually means the inverter board that drives the lamp behind the LCD display. If the rest of the laptop appears to work, for example, hard drive light blinking while booting, try hooking up an external monitor and hit whatever function key that switches you to the external monitor. If everything works, you may want to replace the inverter board yourself. It is not horribly hard if you are very careful. But it is not exactly a walk in the park kind of work.
If the rest of the laptop does not appear to work, the DC-DC step down power circuit is probably shot, which will also make a high pitch noise. In this case, you will have to replace the motherboard. Replacing a motherboard is a major pain in the behind. In most case, it is not worth the trouble if you have an older model.