Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Mikey362uk

macrumors newbie
Original poster
Aug 16, 2018
6
1
Uk
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

macrumors 6502a
Jul 27, 2011
959
399
Lucky Country
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

macrumors newbie
Original poster
Aug 16, 2018
6
1
Uk
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

macrumors 6502a
Jul 27, 2011
959
399
Lucky Country
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

macrumors newbie
Original poster
Aug 16, 2018
6
1
Uk
I hope it’s just the PSU then. They seem easier to get a hold of than the logic boards lol.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.