Help! Mac mini no power

[Mikey362uk]

hi all new to the forum and looking for some advice.

I have a mid 2011 Mac mini. I haven’t used It in about 4 weeks. I tried to turn it on yesterday afternoon and nothing. I first suspected a blown fuse in the plug so changed it with no difference. As I have taken the Mac mini apart before to install a second hard and I had a look at both the power supply and the logic board and neither showed any signs of anything wrong or smelt burnt etc.

When I say no power I mean nothing no lights no fan no HDD.

Can anyone suggest anything?

Thanks

Mike

 

[OLDCODGER]

First, try another outlet.

 

[Mikey362uk]

I have done, I’ve tried three different outlets and two different power cords.

 

[OLDCODGER]

I have done, I’ve tried three different outlets and two different power cords.

Well, in that case, and since it worked last time out, I would start by checking that the power button works (by using an ohmmeter to verify contact when pressed). If that works, then the power supply is next on the list.

 

[Mikey362uk]

Well, in that case, and since it worked last time out, I would start by checking that the power button works (by using an ohmmeter to verify contact when pressed). If that works, then the power supply is next on the list.

Ive Just had the back plate off to see if I could hear anything when pressing the power button and I can hear a very high pitch but quiet noise like power going through but the system failing to activate.

 

[OLDCODGER]

Ive Just had the back plate off to see if I could hear anything when pressing the power button and I can hear a very high pitch but quiet noise like power going through but the system failing to activate.

Sorry to say, that sounds like the power supply has a capacitor problem -something that can fail at any time.

 

[Mikey362uk]

I hope it’s just the PSU then. They seem easier to get a hold of than the logic boards lol.