These are from attempts to flash a Winbond chip on a MCP61 chipset board (failed). The chip was previously hot-flashed with the latest bios for the Winfast MCP61 board using flashrom successfully on another board (Foxconn RC4107MA). Transferred to the Winfast board, the rom chip enabled the board to be booted successfully, but could not then be erased.
 
Many thanks,
Paul Brookman