'08 Mac Pro No Go..HELP..

[windsail]

I'm running an older Mac Pro and have no tones..just a steady flashing of the status light..No intervals..just steady flashes about a second apart. This started after a power outage but this computer has been through many power interuptions and always has rebooted by it's self.....My first thought was the power supply but I just tried another one and get the same thing...I have tried all the resets..pram..unpluging etc..No response..no tones..just the flashing light...I even called Apple and the guy I talked to had no idea..didn't charge me either.......Any one who might have an idea please .et me know....Important "stuff" on it...Many thanks......windsail....

 

[Spawn_Dooley]

So are you saying that whenever you reboot your 2008 Mac Pro just goes straight into sleep mode & won't wake up?

What OS version do you have installed?

Have you tried booting up from the Leopard disc?

 

[Cory Cooper]

Hello and welcome.

Sometimes a dead PRAM battery can cause that issue. Luckily, it's fairly inexpensive (around $5) and easy to test.

Battery Replacement Instructions

C