HP a1740n P5BW-LA Motherboard BIOS tutorial

This was an annoying repair!
This tutorial is to flash BIOS version 3.17 or 5.08 on HP / ASUS P5BW-LA (OEM Asus motherboard to HP) and requires BIOS from HP.

The bios update from windows failed (hang)
Bios screen displayed Award Bootblock recovery BIOS
BIOS Checksum failed
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Download the following archive with awardflash134, drdos and rom files
1. Create a bootdisk with DrDos as described on this site
2. Put Awardflash 1.34 into the image
3. Put HP bios version 317 and 508 into image
4. Boot the CD
5. Run awardflash
6. Load the bios image required (508 is newer)

Notes:
1. I couldn't get motherboard to boot from USB only from CD
2. The files can be in *.rom or *.bin ending it doesn't matter
3. There are many versions and bioses and tutorials online which make restoring this bios a mess!