At this point, I could not get to the BIOS to do any configuration so I removed the new CPU and put the old one back in.
This at least allowed the system to boot and let me get to BIOS to check the BIOS version level and, using the Intel support website, found that to be many levels behind the most current.
What this means is that the initial BIOS display at boot time includes an F7 option in addition to F2 to enter BIOS configuration and F10 to enter the Boot options menu.
I pressed F7 and selected the BIOS file that I had placed on a FAT formatted USB stick.
At the time these were pretty close to state of the art but not top of the line. In addition, I use one for testing Fedora upgrades and other new software, and I use the other as a firewall and router for my network.
I installed Core i3 G620 CPUs with 2 cores and no hyperthreading at 2.6GHz. To upgrade, I purchased a pair of unlocked Intel 17-3770K at 3.5GHz processors to replace the existing ones.This information is from one of the hosts I upgraded after doing the BIOS upgrade.Well, I wasn't thinking about writing about this at that point in my travails.And—being the geek that I am—I also just wanted another hardware project with at least some little bit of justification. I originally used these two identical systems in a classroom environment where raw performance was not an issue.I purchased them several years ago from the local Intrex computer store with Intel DH61BE motherboard that supports third-generation Core i3, i5, and i7 processors in the LGA1155 package at up to 3.5GHz.This all started one day recently when I decided to upgrade two of my older Linux systems.I have been running BOINC for several years to participate in various distributed computing environments and have been using those two computers almost exclusively as compute platforms for that purpose.i have updated my bios under windows meaning it updatesd bios during woindows then it tells u to restard then u start with new bios but i can also do it with DOS are they the same? i have a asrock motherboard and can use flash utiliy aswell but doing it under windows is easist?It is not often that most of us need to update the BIOS in our host computers.In fact, most motherboard manufacturers, including Intel, recommend against upgrading BIOS unless there is a specific problem that an upgrade to a specific BIOS level will fix.Most sysadmins also would agree that "if it is not broken, don't fix it." Upgrading BIOS just to get to the latest level is counter-productive in terms of the time it takes, but also can cause problems that did not previously exist. And that can be a problem for those of us who don't use Windows in any form, like me.