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

no power

  1. powderedfever

    Mac pro 3,1 wont power on

    i recently received a mac pro 3,1 however on trying to power it on all i can hear is the disk drive and hard drive spin up with no fan movement what so ever. There is a red light in the top left corner of the logic board and all the lights on the ram cards are red whether there is ram in them or...
  2. Y

    Mac Pro 5,1 2010 won't power on.

    Hello everyone. I have found myself in a tricky situation. My Mac Pro 2010 won't turn on anymore all of a sudden. There is no click or sound when I push the power button, no light, no response whatsoever. I have replaced the power cord, plugged it into a different power source, unplugged...
    • Yurtal
    • Thread
    • mac pro (2010) no power won't turn on
    • Replies: 7
    • Forum: Mac Pro
  3. jaeb

    MacBook Pro 17" early 2008 not powering up

    i brought my old macbook pro 17" early 2008 from storage to try and use it (bought new ram and ssd to install on it) however i found it wouldnt turn on. firstly i assume the battery after 10 years must be dead already (not very noticeable but bloated) so i try to boot it up from the adapter with...
    • jaeb
    • Thread
    • macbook pro (17" early 2008) no power
    • Replies: 4
    • Forum: MacBook Pro
  4. dosdude1

    Mid-2010 Mac Pro 5,1 Major Power Issue

    I just recently acquired a Mid-2010 Mac Pro 5,1, and it is now having a major issue. When I initially got it (a few hours ago), it worked perfectly fine. However, after letting it sit awhile unattended (while I was in another room flashing an AMD Radeon HD 5870 graphics card I got for it), I...
    • dosdude1
    • Thread
    • 5.1 apple cpua overtemp cpub overtemp diagnostic leds fans not spinning mac pro no power overtemp leds on solid
    • Replies: 65
    • Forum: Mac Pro
  5. HunterCupp

    Apple II Troubleshooting

    Hello all, I'm breaking this case open again because I simply don't have the needed experience to do anything about this on my own. Here's a refresher-- A couple years back while working on an Apple II I had acquired, I managed to fry something somewhere. The machine was on, and I had...
  6. waycss

    imac 2011 21.5 no power (one led)

    I turned off all the imac was ok, when I tried to turn it on nothing happened. I tried different variants, hundreds of times, it did not work, took the screen lights up 1 LED. What to do? the power unit is broken?
    • waycss
    • Thread
    • no power
    • Replies: 10
    • Forum: iMac
Top Bottom