Where to find the BIOS update file?

[JeminiTri]

A request for assistance
Product: HP Pavilion p6601f Desktop
Prod #: BM417AA#ABA
Processor: AMD Athlon(tm) II X4 635 Processor 2.90 GHz
Operating System: Microsoft Windows 7 (64-bit) and/or Windows 10 Pro (64-bit)

Hello everyone, I have an old desktop (p6601f) on which I want to update the BIOS to be able to boot from a USB drive--it still has floppy in the boot list.

Current Board and BIOS is listed as:
Board: FOXCONN 2AB1 (1.00)
BIOS Version/Date: American Megatrends Inc. 6.04, 9/7/2010

But I can't find the file I need to flash the BIOS -
Description: Foxconn 2AB1 Motherboard BIOS Update
V6.07 Rev. A released 09/23/11, I think???

I found HP files, but not sure which is the correct one with file names along the lines of "sp54501-55000/sp54784.exe" for example (that's not it). There are literally tens of thousands of them, but no way for me to know which of them is "THE ONE" I need...at least not within my lifetime!  🙂

A link to the file I need would be excellent.

I know p6601f is ancient in the computer world, but it's the best I have for now. And having recently upgraded it from Win7 to Win10 (sort of), it works for my needs for the most part. I have added a hard drive and a 2GB memory chip. Now I just need it to be able to boot from a USB drive, where my copy of Win 10 is if I need it for repairs, and I'm set.

I have already tried AMI and FOXCONN to no avail as this model has long been not supported anymore, and also have seen on here that it is not recommended to go to the motherboard's website for BIOS updates.

Please, unless you are 100% sure of your answer and have done this before, please do not respond. Thank you.