Some network cards have a feature known as "Wake-on-LAN" (WoL) which allows a person to remotely turn a computer on. Some other devices have similar features, and my guess would be your firewire board is one of them.
You might want to consider upgrading to SP2 (for reasons that have nothing to do with your current problem), as well as checking for any updated drivers. Use Google to see if other people have the same problem as you, and what they might have done to solve it. Contact the company that made the board, and ask them if they've heard of the problem and maybe have a solution stored away somewhere.
You have to do more than just fumble around hoping you'll find the answer. You've got all kinds of resources available to you, but the answer just isn't going to leap out at you from them unless you at least look first.
I'm running on WinXP sp1. Gigabyte GA-7VRXP. AMD 1.8 Ghz. personally assembled PC.
Problem: after installing new PCI Firewire card. My PC seem to be always turned-on.
I install the card onto the slot, but when I plug in the electrical cord to casing. It turned on automatically. (this should'nt happen).
Then I went to check the Firewire to see if it's working. It working fine. Check on the Device Manager, no conflicts, The device is working properly.
I shutdown my PC... it turns on again! after it went dead for split second.
Confused, I turned it off by pressing the power button manually for period of time. Just before it enters Windows welcome screen (still in bios).
Plug off the electrical cord for safety. I unplug the Firewire card. Then I plug the pc back. No surprise. My PC didn't automatically on. This is what it supposed to be.
Shut it off.
I tried to plug my Firewire card onto different slot from the first. It does the same thing. Automatic.
I check the Device Manager. See the Firewire properties. Check under Power Management.
I've notice that the Check box of "Allow the computer to turn off this device to save power" is grey-ed. Cannot be check.
Not like the ones in USB's Power Management.
I conclude that this is the cause of it. It seems that the Firewire card never goes off. thus tells the PC to do so too.
My question: Why this is happening? and how to solve it?
Please assistance. Thx