Frederikcupello
Level 1 (8 points)
Desktops

Q: Mac Pro 2008 Wont display anything

My Mac Pro 2.8 GHz 8 core  boots but nothing shows up on my external LG monitors.

 

i Think my PSU is Also very sick because i often have to unplug the power cable for 24-48 hours to get it to boot

 

I Dont know if there is a connection between these issues. But i hope Someone might be Able to help. Thank you in advance

 

THe graphic card is an ATI Radeon HD 2600 XT

 

serial number: G8****XYK

 

<Personal Information Edited by Hosts>

Mac Pro, OS X El Capitan (10.11.1), null

Posted on Apr 27, 2016 7:28 AM

Close
Frederikcupello

Q: Mac Pro 2008 Wont display anything

  • All replies
  • Helpful answers

  • by lllaass,

    lllaass lllaass Apr 27, 2016 5:36 AM in response to Frederikcupello
    Level 10 (189,400 points)
    Desktops
    Apr 27, 2016 5:36 AM in response to Frederikcupello

    Do you hear the startup chime?

    After starting open the side cover. Are any diagnostic light lit on the logic board or by he memory sticks?

    Does the power light light? Are the fans spinning?

    Blow off all dust inside.

     

    Likely either a memory problem or the graphics card failed.

    The memory in the 2006-2008 run hot and fail with time. The 2600 XT cards also fail will time

  • by Frederikcupello,

    Frederikcupello Frederikcupello Apr 27, 2016 6:21 AM in response to lllaass
    Level 1 (8 points)
    Desktops
    Apr 27, 2016 6:21 AM in response to lllaass

    Yes i hear the startup Chime, fans and the power light is on.

     

    i Actually replaced/upgraded the memory a Couple of weeks ago And replaced the graphics card some months ago. Of course the replacements i bought might have Been in bad condition Though...

     

    there does not Seem to be Any diagnostic lights while its running but when it shuts off randomly (probably because of the PSU) i see some red lights on the memory boards.

     

    thanks for the Quick response!

  • by lllaass,

    lllaass lllaass Apr 27, 2016 6:30 AM in response to Frederikcupello
    Level 10 (189,400 points)
    Desktops
    Apr 27, 2016 6:30 AM in response to Frederikcupello

    You said "i see some red lights on the memory boards."

     

    The red light(s) mean problems with the stick adjacent to those lights.

     

    You may have two problems, memory and graphics card.

    Getting the chime means it passed self test which is good and it can pass even if some memory is bad.

  • by Frederikcupello,

    Frederikcupello Frederikcupello Apr 27, 2016 6:39 AM in response to Frederikcupello
    Level 1 (8 points)
    Desktops
    Apr 27, 2016 6:39 AM in response to Frederikcupello

    Okay so i guess i should be looking at replacing the memory, graphics card and the PSU.

     

    Thanks alot for the replies!

  • by lllaass,

    lllaass lllaass Apr 27, 2016 7:13 AM in response to Frederikcupello
    Level 10 (189,400 points)
    Desktops
    Apr 27, 2016 7:13 AM in response to Frederikcupello

    If the power supply is part of the problem you may be better off purchasing a used 2009-2012 Mac Pro. Those models are almost identical and you can update the firmware of a 2009 to that of a 20010 so that you can use 6-core processors and gains other features that are in the 2010