Clicking from inside PC case
Clicking from inside PC case
Occasionally you encounter a bum fan. The blade might be hitting its shroud or the center where the bearing connects. First determine which fan it is. Typically I just use a finger to stop a bladed computer fan (NOT A BLOWER STYLE FAN). The correct method is to disconnect them. Plug one in at a time until you isolate the fan making noise. Turn off each time before plugging in or removing a fan. Edit: Actually, I just use a stethoscope to isolate noise making components. Much easier if you have one. You can sweep the case like a mine sweeper isolating noises. Once you hear something, move towards it until you find it. It's also useful for detecting electrical hum, rattles, and checking a hard drive to see if it is dead.
When a wire is close to a fan, you may notice it reflecting sound. If a chassis speaker is present, it could indicate electrical interference.
Occasionally you encounter a bum fan. The blade may be striking its shroud or the center where the bearing attaches. First determine which fan is involved. Typically I just use a finger to halt a bladed computer fan (NOT A BLOWER STYLE FAN). The correct method is to disconnect them. Plug one in at a time until you identify the noisy fan. Turn off each before plugging or removing another. Edit: Actually, I just use a stethoscope to pinpoint noisy components. Much simpler if you have one. You can sweep the case like a mine sweeper isolating sounds. Once you detect something, move towards it until you locate it. It’s also useful for detecting electrical hum, rattles, and checking a hard drive to see if it’s dead.
Once you’ve isolated the fan, search for anything that could be causing the noise. If nothing is found, remove the fan. After removal, manually spin the blade to check for rubbing. If you find a problem area, contact the manufacturer for a replacement.