Firewire card installation failed, now won't boot into os x

G4 gigabit dual 450 was working fine except firewire port wasn't so I installed a firewire port card. On reboot i got/get a nice startup tone but the screen stops on the grey on grey apple image... with the grey bar circle spinning, and won't move into os x. I tried the button switch (PMU? counted to 12) by the internal battery, but no change. HELP, please...
(I took the firewire card out)

Hi
Dale Wiesshaar,
I installed YellowDog Linux last week. I deleted the installation, personal reasons, and tried to install this week.
Guess what happened? All three firewire ports are not working.
When trying to install YDL, the installation tries to load the ohci1394 driver and abends, dumps, throws and exception, whatever.
In addition, none of the 4 daisy chained firewire drives appear on the desktop. None of the additional 3 daisy chained firewire drives appear on the desktop. The firewire camera does not appear on the desktop.
So I broke the chain into a 15 feet chains, and distributed the chains over 2 external firewire ports. Four devices are on one chain, and two devices are on the other chain. The other firewire device was moved to the 12 port usb hub (this device switches b/w usb/firewire). The camera is off the chain entirely.
The following are the installed extensions on my mac:
IOFireWireAVC.kext
IOFireWireFamily.kext
IOFireWireIP.kext
IOFireWireSBP2.kext
IOFireWireSerialBusProtocolTransport.kext
This is the fix I performed: http://www.index-site.com/firewirebug2.html#RESETPMU
pull the plug on all devices and power mac; waited an entire day to replug
reset-all = in open firmware
reset parameter ram
broke up the chain of firewire devices to 15 feet each, on each port
blew any dust particles from the firewire ports
lastly, reset PMU
the battery is problably less than 2 years old (my mac is 10 to 12 years old; it is my personal computer)
None of the above fixes restored my firewire ports. Therefore, I purchased a firewire card. All firewire devices appear within the finder.app.
I am not able to install YDL. YDL allows me to perform a multiple boot:
Linux
MacOSX
MacOS
OpenFirmWare
CD
NetWork
(for security reasons i do not perform all of these boots)
When YDL attempts to load the ohci1394 driver, it fails. I removed the new firewire card, now I am back to circle one.
I will now try the following solutions:
combo update
repair permissions
If this does not work, I will reseat my fireWire card and not install YDL.
Thank you in advance for your assistance, and helpful post on the fireWire conumdrum.

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Summary:
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Symptoms:
It stopped booting, with the only signs of life are:
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Don't worry, my story gets more interesting...
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Thanks in advance!

Since no one else is answering, I’ll jump in.
Your story is interesting indeed. I’m not sure I can help you fix the Mac but it sounds like there is a reasonable chance of recovering the data.
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For the hardware problems on your Mac it is time to take it to Genius Bar at an Apple store for a free diagnosis and estimate of repairs.
Genius reservation http://www.apple.com/retail/geniusbar/ .
It could be your disk failing but it sounds more like flakey electronics in the system. Let’s assume is is the system board until a Genius tells you otherwise. If so, you can simply put the working system disk in an external enclosure, mount that on your other Mac and copy the data. Here is a source for the inexpensive hardware you would need:
Toolkit: http://eshop.macsales.com/item/OWC/TOOLKITMHD/
SATA enclosure: http://eshop.macsales.com/item/OWC/ES2.5BPU2W/
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WinXP booted after BIOS update cleared RAID setting, now won't boot in RAID mode

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Quote from: erikFC on 05-November-07, 23:41:04
I updated the P965 Platinum BIOS to 1.7 and my system stopped booting. After much experimentation I discovered it would boot if I unplugged the monitor and mouse, so I was able to "upgrade" to 1.6, and it's working again. However, the first time it booted blind with 1.7 it got all the way to Windows before I realized what happened.
My system was set up with a RAID1 pair, but the BIOS upgrade cleared the SATA mode to IDE, and it booted Windows before I changed it back. Now Windows won't boot when I set it to RAID. It complains <windows>/system32/hal.dll is missing or corrupt. It seems to work (mostly) when I put it back to IDE mode. How do I get it back to RAID1?
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Hi,
Why did you upgrade to 1.7 bios?
Also, you do not by have by any chance a Nvidia based card in system?
Del

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It's got me puzzled, and a bit annoyed really, as it should work up to 4GB. I've also seen reports from other people who have these same modules working in various MBP's.
It does/will work at 4GB with the proper RAM. I'm not surprised that some of the Kingston's VR works for some MBPs, but not yours. Here's why: Apple's specs are very tight (tolerances, if you will), compared to the PC industry, and seem to get tighter with each new OS upgrade. When you buy guaranteed Mac compatible RAM, it means that RAM has been tested with and passed Apple's specs. Just by chance, some other generic RAM (KVR, for instance), may pass and be compatible with Macs, while others won't. You obviously got some the is not compatible, and even if it was now, it might fail Apple's future specs. That's why I'd never buy KVR or generic RAM. I don't need the hassle that you're going through now, or, if not now, probably would go through in the future.

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