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no need to replace just remove the label sticker from the fan and remove the smaller lock from the fan shaft be care full its very typical to remove that lock just use 2 needle with one needle press and hold the lock with other lift up lock from the cut side lift up the lock and remove the fan from bushing just clean both bushing and fan shaft with any rust remover cleaner clean well after clean both just apply any kind of lubrication oil and re assemble the fan it will be free of noise.
The heat sink may be clogged with dust and ifthe BIOS temperature sensor controls the fan speed then it may be compensatingfor the reduced cooling by the dust build-up. Check the fan and heat sink assembly and remove the dust, loosen the dust anduse a can of compressed air to clear away the dust.
Most desktops have fans fitted, especially in the power supply. The bearings and not that good and become noisy when older. They are replaceable but a replacement power supply is far less effort. Show the fans a plastic pipe from a vacyym cleaner from time to time, that will make the fans more efficient and reduce the wear and noise. The hard drive can get noisy also, (if it is I would before it is too late), recommend replacing it. Hope that helps.
Ideally there will be some amount of noise emanating from any system, so its normal. The noise factor can be attributed to various components within your tower. Typical components that generate noise are:
CPU Fan - It usually runs at a speed of 1500 rpm
Hard Drive - There are circular metallic discs in the hard drive which run at a speed of about 7200 rpm for normal hard drives
Video Card Fan (if there is one)
SMPS/Power Supply fan
However, if the noise is very audible then you can try the following:
- Ensure that your tower is kept on a flat surface
- There are no obstructions around the power supply fan (found at the back of your tower)
- Power supply provided is proper and coming through a spike buster
If you feel that the noise level is high, then I would recommend contacting Acer support as it may be a problem with one of the fans or the way your motherboard has been fixed within the tower.
if u don't get eny display 1 you need to cleane RAM then it's still not working you need to chek power suply.. and chek yr cables is attached is right or not.
simple.. if u need more help please contact feel free.. thianks..