Because your post was the only one that a search for "85DR" found...
I'm building a system with a SL-85DR-C but I can't find the serial or PCB numbers.
Why the PCB?
I want to flash the bios for the Celeron 1.7 and in this link the bios options include an updated bios for that chip.
BIOS
Additional oddity: On boot, it says Award (*.bin files) . Yet, they only list AMI (*.rom files) for download on the website.
Maybe Soltek does this kind of stuff all the time.
Thanks.