2 years pa lang sir,
yun ba yung casing fan sir?madali lang ba kabit yon.
thanks mga ka espiya!
as what was said earlier, check mo fan ng power supply mo. habang patay yung computer mo, try mo paikutin yung fan ng power supply mo, then try mo rin paikutin yung fan ng casing mo (as you have stated, meron ka ring casing fan), assuming wala problema yung casing fan mo, dapat parehas sila ng "higpit". habang hindi nakasaksak yung unit mo, try mo paikutin yung fan, if it freely rotates, then malamang wala problema sa fan and as said by another ESPIYA malamang may problema na sa internals nito (capacitor malamang). if fan lng problema, try mo patakan ng oil yung sa may bandang gitna, gitna nung motor ng fan ha, where its "bearing" is located. it might have dried up, or might have accumulated dirt thru time.