After battling for days with a Dolch 65 that developed the two-tone beep-of-death on boot, I finally found that it's just my BIOS ROM that has gone bad. The BIOS happens to be an Award BIOS, says "Award 1998 PCI/PNP 686" on the chip. It's a square chip with pins on the side.
Photo here: https://drive.google.com/open?id=1OtZ1AU0Hac8RlzTgbgCY4z_qcMlGWXu1 So I thought I might just ask. Anyone has a dead Dolch 65 motherboard from which I could steal a BIOS chip. The board is actually an Advantech CI6BM-B1 industrial single board computer. Or alternately, can someone identify what kind of ROM or EEPROM that likely is, and provide advice on how to read the data from a good chip (I have another good chip in another Dolch, that's how I found out what my problem was), and program a similar chip. Marc