New To Mac-Forums?

Welcome to our community! Join the discussion today by registering your FREE account. If you have any problems with the registration process, please contact us!

Get your questions answered by community gurus Advice and insight from world-class Apple enthusiasts Exclusive access to members-only contests, giveaways and deals

Join today!

Start a Discussion

Mac-Forums Brief

Subscribe to Mac-Forums Brief to receive special offers from Mac-Forums partners and sponsors

Join the conversation RSS
Apple Desktops Discussion of Apple's desktop machines including Mac Pro, iMac, Power Mac, and mini

Mac Pro - Blue Screen Stall and Dead Firewire

Post Reply New Thread Subscribe

Thread Tools
Ikarii Warrior

Member Since: Jul 27, 2009
Posts: 2
Ikarii Warrior is on a distinguished road

Ikarii Warrior is offline
First post, hoping I can get some help or insight or a point in the right direction for something I may have not tried with my current problem. I am creating this post in two segments, the first part "preface" is for the edification to those that are searching for a solution to my first problem which took me days to figure out. The second part is my current problem that I'm hoping there is a non-service based solution to.

A little while ago my Mac Pro early 2008 model started taking excessively long to boot (10+ minutes). I finally got around to investigating and trying to solve the problem. The symptoms were: normal boot sequence up until the blue screen (usually only up for a few seconds), then hang for 10 minutes before showing the login screen. I found a plethora of articles describing the problem I was having and indicated it was anything from a bogus update to outdated software (APE), etc. None of these problems were relevant to my scenario, especially after I performed a complete reinstall of the OS. Finally I decided to pay very close attention to the output in verbose mode instead of looking at the console log. In verbose mode the last line before the blue screen was a timeout with one of the IOFirewire kexts initializations.

Shooting in the dark, I decided to remove the kext files relating to IOFirewire out of my /Library/Extensions folder and to my surprise booting went back to a normal timeframe of less than 30 seconds. As this was a fresh install I realized something else must be wrong with my Mac Pro than just software/driver corruption.

Current Problem
Ok, so my initial issue has been solved, but now I'm going down another rabbit hole. I've almost never used my firewire ports (so frying them with hot swaps is not plausible), but they certainly do not work (especially when no drivers are loaded for them). Even if I let the 10 minute boot cycle go, firewire shows "no information" in the devices pane.

Here are the troubleshooting steps I have taken so far.
  1. I have attempted to reset the PRAM with the <command>-<option>-<p>-<r> combo on boot.
  2. I have ran Apple Hardware Test (which came up perfectly clean which gives me small hope).
  3. I have booted in Firewire Target Mode (paired machine did not see my mac pro as a hdd, though I'm not convinced I did this right and I did not test all available firewire ports).
  4. Reinstalled OS X fresh, twice.
  5. Powered off the machine and unplugged all devices and Power cord, left unplugged for 15+ minutes.
  6. Powered down with Power button and left pressed in until the flashed several times with a unique beeping sound then let it boot normally.

I'm keeping up hope that there is something I have not tried to resurrect my firewire... but things are starting to look grim.

Considering the consensus may be that the firewire bus is dead, I have purchased a firewire card as a replacement... the problem with this solution is that enabling the firewire kexts brings back the 10 minute boot times... I'm hoping there is a way to disable only the internal firewire bus.

I at least hope the first part of this post was helpful to people whom may have a similar issue that, like me, was been unable to dig something up through google.
QUOTE Thanks
Ikarii Warrior

Member Since: Jul 27, 2009
Posts: 2
Ikarii Warrior is on a distinguished road

Ikarii Warrior is offline
Update: I've confirmed about as much as one can confirm that the internal firewire is kentucky fried. I got a pcie card to work as expected, but to use it in osx I still have to wait the 10 minute boot times... unfortunate. New logic board for me.
QUOTE Thanks

Member Since: Oct 21, 2009
Posts: 1
phoenix-ashes is on a distinguished road

phoenix-ashes is offline
Hi I just had the same problem with a long boot on my Mac Pro (Early 2008).

Just checked system profile and the firewire bus is indeed not working.
That explains why my hard drive stopped working via Firewire 800 the other day - just had assumed it was a lead and was using it via USB.....
QUOTE Thanks

Post Reply New Thread Subscribe

« 27" imac 2nd display | Mac Gigabit Ethernet Cards Network Performance »
Thread Tools

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Forum Jump

All times are GMT -4. The time now is 04:48 AM.

Powered by vBulletin
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.

Welcome to

Create your username to jump into the discussion!

New members like you have made this community the ultimate source for your Mac since 2003!

(4 digit year)

Already a member?