Specifications

EPC-3305 Hardware Reference
100
About re-programming the flash chip
On rare occasions, part or all of the flash chip contents may require replacement.
You can set options that force re-programming upon reboot via one of these:
• phflash program: Re-programs the flash chip from a DOS command prompt.
• BIOS configuration program options: This is the easiest and fastest way to
re-program the flash chip, provided your system is connected to a floppy drive.
• Force recovery jumper: This technique is useful if a keyboard and monitor are
not available.
Use extreme caution when re-programming the flash chip. The Boot Block
rarely changes and should not require re-programming.
Figure F-2. Flash chip re-programming coverage
Boot block
ESCD
BIOS
Other:
CSR, user extensions
BIOS extensions, etc.
BIOS: Re-programs only
BIOS-related sections of
the flash chip.
Flash Boot Device (FBD):
Re-programs all of the flash
chip except the Boot Block.
Boot Block (BB):
Re-programs only the Boot
Block portion of the flash
chip.