Black Screen on start up, no chime, fan immediately overdrives, no response

jorwesflow:

does anyone want to confirm that it IS indeed a bad logic board?

Can't confirm that for sure, but it sounds very suspicious. I would take it to the Apple Authorized Repair facility and have them take a look.

😉 cornelius

One other thing to try might be the steps in this article:

Troubleshooting: My computer displays no video

http://support.apple.com/kb/HT1573?viewlocale=en_US

In addition to what you have tried, it will have you reset the PRAM. It may be that will allow you to boot from a disc--I don't know. But it won't cost you anything to try.

Good luck!

Sorry, I can't really think of anything else to try. I assume you have done all the obvious things like disconnecting all peripherals and maybe removing the battery and seeing if it will boot up just on the power adaptor. The fact that you do get fan noise indicates that you are getting power at least to the fan. But since the PB won't boot at all even from a disc and you can't reset the PRAM or PMU and there's no startup chime at all, I am guessing that there is some sort of a hardware problem, but I do not know what it could be. It almost seems like power is just not getting where it should, but I really don't know.

About all I can do is to give you a link to another repair manual which might give you a few more insights than the one from Powerbook medic, as it does contain a troubleshooting section. I will post the index to all the manuals--you will have to navigate to the exact one for your PowerBook and download it.

http://node123.cit.geneseo.edu/~stratton/ServiceManuals/

Good luck!

Hi,

When you tried booting from the install disk, were you holding down the C key???

This might be a bad video card. What concerns me most is the fan. That is usually a sign that there is a process taking a huge amount of the CPU. The only way to see that information is to be able to boot the machine to the Desktop, launch either Activity Monitor or the System Profiler/Startup Items and also, if you can get it booted, the system logs are there also. They can shed light on the situation.

If you can't boot from a restore disk I think your only hope is an Apple store or Apple reseller. Using another Mac, you might be able to access the hard drive using Target Disk Mode:
Transferring files between two computers using FireWire
You can use FireWire to connect your computer to another Mac and have one of the computers appear as an external hard disk on the other computer. This is sometimes called Target Disk Mode.

To transfer files using FireWire:
Shut down the first computer and leave the second computer on.
Connect the two computers using a 6-pin to 6-pin FireWire cable. (If both computers have higher-speed FireWire 800 ports in addition to the standard FireWire 400 ports, you can use a 9-pin to 9-pin cable with the FireWire 800 ports to transfer data at higher speeds.)
Open System Preferences, click the Startup Disk, and click Target Disk Mode. (Or, start up the first computer while holding down the T key.)
A disk icon for the first computer appears on the desktop on the second computer. Drag files to and from the disk to transfer them.

When you finish, eject the first computer's disk by dragging its icon to the Trash. (While you drag, the Trash icon changes to an Eject icon.)
Push the power button on the first computer to shut it down and disconnect the FireWire cable.
If the computer to which you connect your computer is running Mac OS 9, it must have FireWire version 2.3.3 or later installed. Use Apple System Profiler (located in /Applications/Utilities) to check the version of FireWire installed. If it has an older version, get an update at the Apple FireWire website at www.apple.com/firewire.

Carolyn 🙂

Message was edited by: Carolyn Samit