Dell OptiPlex GX520 PC Desktop "fan rotation change" Questions

Dell OptiPlex GX520 PC Desktop Problem i have adell gx520,when i connect the power cable,the power light blinks amber...and when i disconect the processor power cable(aux..12v)...the power button ...

...and expansion card lights up and also the CDrom works fine (ejects and closes normally), processor fan also rotates normally, but hard disk beep is not there. Keyboard and mouse never lights up. LAN ...

...and expansion card lights up and also the CDrom works fine (ejects and closes normally), processor fan also rotates normally, but hard disk beep is not there. Keyboard and mouse never lights up. LAN ...

...the SMPS if it is more then 2-3 years then change it because it is damaged in 2-3 years and after changing then also not work then you go to mechanic and checked your motherboar smps fan not ...

...c.p.u fan or the system fan mounted on the casing,simply check which one is not rotating and change it.or(not recommended) if it is the system fan,just go to bios settings and dissable it.hope it ...

...because of heating up of the proceesor, which might be caused if the fan CPU fan is rotating slowly or is not rotating at all. If the fan is rotating slowly change the cpu fan and try to reinstall ...

...rotation of any fan happens... Is there more than one fan inside the computer? Did you double-check the connection from the fan to the motherboard? Sometimes a computer will shut down if it doesn't ...

...of changing out the power supply. If, however, the fan seems to keep the same rotation speed constantly, we'll need to look further. Let me know what you find out before we go deeper into the

fan rotates very slightly every so often when i push the power button nothing happens the ram may be faulty try to change the ram with one which is working I CONNECT MY H.D.D WITH MOTHERBOARD BUT THAT

old emachine T2642 will not boot...disk monitor LED stays on and CPU fan does not rotate...no boot access to CD-ROM, or disk drives...changed power supply...think it might be BIOS backup battery... It