DEAD MAC HELP - Power Light Pulses

[iriejedi]

Wish it was April first and I could think this was an Apple joke... but it is not April first was a fine day with my Power Mac G5 (ligid cooled PPC 2 X 2.5).

So I started it up and nothign happened - the power cam on , the fans rev'ed adn that was it.

The power light kept repeating three pulses. Which I think was the international symbol for S.O.S.

The fans 'slowly' picked up speed.

I can not find pulsing light info on the Apple support sight. Does anyone know what this warning means?

Bad Power Supply.... NEW COMPUTER??? (Wife opposes that solution).

 

[krye]

Looks like maybe your RAM is bad?

http://docs.info.apple.com/article.html?artnum=302527

 

[tugger]

No bong + no video + flashing light + fans running = bad logic board. 🙁

Have you checked the unit for leaks? Some liquid-cooled G5 units had this problem.

 

[Poogis]

I would say RAM too as I had this same problem on my G5.

I took out the RAM I had installed, left the factory installed RAM and it was fine.

 

[iriejedi]

Thank you - RAM death plausable??

UPDATE: Dismantled it - put in RAM back in Bank by Bank it booted each time. YEAH!!!!!

Then sealed it up - three flashing lights. Again!!!!! Took two banks out (3 sets full) - no boot.

Does this point to Mother board?

Is that worth fixing?



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What are the odds the RAM I have had for 3 years suddenly fails?

I have not heard of this happening before. Is it plausable?

Thank you.

I would say RAM too as I had this same problem on my G5.

I took out the RAM I had installed, left the factory installed RAM and it was fine.

 

[mattmac]

Same thing happened to me on a 2008 MP 2.8 octo just 3 weeks old.

On startup no chime, no grey screen, nothing, just a pulsing power light. Knackered logic board and both processors, apple couldn't get replacements so gave me new mac. I was told by Apple that if this is going to happen it would most probably happen after a few weeks and after a year or so.

 

[iriejedi]

Time to move on

Time to move on. Yeah the repair was almost $800 and new machine even stock is WAY better then this 4 year old baby. She was a good machine....

So my new question - will my old hard drive will fit in the new computer. Should I bother? Should I just use Time machine? it is an old 160gig drive.... maybe just format it.


Any thoughts?

Same thing happened to me on a 2008 MP 2.8 octo just 3 weeks old.

On startup no chime, no grey screen, nothing, just a pulsing power light. Knackered logic board and both processors, apple couldn't get replacements so gave me new mac. I was told by Apple that if this is going to happen it would most probably happen after a few weeks and after a year or so.

 

[WardC]

I had this problem on my Mac Pro, it was related to the 3rd party non-Apple RAM that I had installed. Running all the firmware updates (SMC and EFI), and everything finally fixed it. I have all my 3rd party RAM back in and it's running like a charm. Make sure you run all the software updates. This could fix it.