Thanks, jitpublisher for the reply. I know the "best practice" is to make as few changes as possible in a situation like this, so I wanted to make sure slapping in the new CPU in first wouldn't be a big deal. I couldn't see why it would, so I think I will take this approach.
On # 5, yes I was kidding - no way will I attempt this specific BIOS update again.
However, in regards to the BIOS on both the old and new motherboard, allow me to expand on my original post outlining some information I should have included initially.
Two folks I work with bought this computer around the same time I did and have loaded that BIOS rev without fail. In all my system builds, I have never had a BIOS update lock the computer on me and kill the chip like this one did.
The BIOS update I installed comes from Dell and is only available after you logon to their site. Therefore, this is a Dell provided and supported release for the BIOS. I followed the same steps I always do with a BIOS update; unplug all USB stuff, shutdown unnecessary apps, etc. When I ran this one it took over an hour to complete (about 30 min into it I realized something wasn't right) and ended with "Failure! Failure! Failure!", "BIOS not updated" or something like that. Without having many other choices, I had to restart the system and it came up dead. This was expected at this point.
As I stated, "no big deal". These things happen. Data is backed up, I have 4 other systems, and a [new] replacement MB is only $70. Not panicking. Not "dead in the water". It is our most commonly used system, so sure it has apps and some files on it that I would like and yes I would like to see it back online fairly quickly, but again not panicking.
My BIOS was over 3 revs behind and I disagree with you that upgrading it is a waste of time and only necessary when you have a problem. We don't load service packs or patches ONLY because we have problems. We load them to prevent problems, add features, introduce compatibility, and close security holes. Since I was getting ready to upgrade some hardware and rebuild the system, this is the perfect time to update something like this. Granted I wasn't having a "specific issue", but reviewing the release notes for each made the update seem logical since they are cumulative. A release like this - and this old (almost 2 years) - should have been tested thoroughly enough to identify something like this. At a minimum it shouldn't be available to download, especially knowing it had been reported to them on several occassions over the past 24 months.
But, like I said, its $70 - not $700...
And understanding that they can't test every scenario, if there is a problem or the update is hanging within Windows there should be a reliable fall back mechanism (used to be able to do it with a floppy or remove the chip and replace it). Regardless of what it is, there should be one outside of replacing the motherboard.
Further, my system is under warranty, but there is only a few weeks left on it. So, what I have requested from Dell is that they review my case, consider removing the update, and possiby reimbursing me (on some level). Since it is under warranty, I know they could give me a refurb board and maybe even send someoneout, but I simply don't have the pateince to go through the hoops with them and for $70 (no shipping), I'll have a new one here tomorrow. And I certainly don't need someone to put it in for me. Plus, I would rather have a new one and I don't plan on extending my warranty anyway. If they do something, great. If not, oh well. A quick Google search revealed that this had happened to many others w/ the same system and Dell promptly replaced the part or offered some form of compensation - even if they weren't under warranty. I expect to hear back from them this week and I also realized I kill my warranty when I replace the board. So what.
In regards to # 5, what if this replacement board comes with one of the first BIOS releases offered for it and I have things that don't work (e.g. wireless mouse, USB hub, new video card, etc.)? I really won't have much of a choice but to turn to a BIOS update then. If that turns out to be true, I guess I'll have to attempt an update and hope it wasn't Windows that caused the first one to fail.
Thanks again for the reply and info!