I have a Lenovo M91p Thinkcentre computer with a BIOS firmware which is over four years old. From what I can tell it is a Lenovo model.
About three days ago, I was unable to boot into Windows even into Safe Mode. After cloning its original SSD to a newer Samsung SSD and doing a couple of other things (I know that sounds lame, but I have lost track -- see previous EE question for more details) (It's rather long, so you may want to skip it), I have finally been able to get into Windows.
All of the troubleshooting by the experts and me have been related to the hard drive and a possible msconfig error, but it is still difficult to get past the BIOS issues.
When it boots up, there are two short beeps, which Lenovo claims is a POST error. There is also a 1762 error which justs indicates there has been some type of configuration change. Finally, it states that there is an erroneous boot sequence. I haven't been able to pause it, so it is hard to catch exactly what it says. The only thing set to boot is the CD drive, followed by the SSD/OS, and I get that message even when it is just the hard drive listed.
The weird thing is the following: I have eight Lenovos, all bought at the same time all with the same configuration with the exception of an i7 here and an i5 there and maybe more RAM in one than the other. In all the other computers, you can update the firmware either from Windows or a CD.
With this computer, if you try to flash from Windows, it states that the ROM is older than the present one, which is not true.
I have used the CD on four computers, and it automatically loads a file, then automatically updates the firmware to the latest version. When I try to use the CDiso in problem computer, you catch a glimpse of the screen that it updates the firmware from, but then instantly goes to a W:\ prompt. I have no idea what to do from there.
It won't let me upload a photo which I have saved as a jpg and png and is only 1 MB. I will try again in the next window. But, two of the eight files are Flash2 exe and Image9h rom which, obviously, is the firmware. Just not sure what to do, but even more, why it went to this screen.
So, in summary, soom boot issues that are mostly resolved with a Lenovo BIOS which has two short beeps on POST with two error messages listed above, and it won't allow me to update the firmware.
Just a reference if you are bored.