Intel NetStructure® MPCBL0010 Single Board Computer
October 2006 Technical Product Specification
Order Number: 304120 89
Error Messages—MPCBL0010 SBC
8.0 Error Messages

8.1 BIOS Error Messages

Tabl e 60 lists BIOS error messages and gives an explanation of the message.
Notes: If “Wait for F1 Error” was enabled under the BIOS setup screen and any of the above error messages
are displayed, the BIOS will wait for user input before proceeding with the boot up. The only exceptions
are:
— CMOS Checksum BAD
— Clear CMOS Jumper enabled
BIOS setting “Wait for F1 Error” is not enabled by default.

8.2 Port 80h POST Codes

During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O
port 80h. If the POST fails, execution stops and the last POST code generated is left at
port 80h. This code is useful for determining the point where an error occurred.
Tabl e 61 through Tab le 64 give des criptions of the POST codes generated by the BIOS.
They define the uncompressed INIT code checkpoints, the boot block recovery code
checkpoints, and the runtime code uncompressed in F000 shadow RAM.
Note: Some codes are repeated in the tables because they apply to more than one operation.
Table 60. BIOS Error Messages
Error Message Explanation
Timer Error This timer resides in ICH. Error message indicates an error while programming
the count register of the timer. This may indicate a problem with the timer in ICH.
CMOS Battery Low BIOS will report this error message when status bit (RTC_REGD.Bit7) in ICH is
low. This bit is hard-wired to RTC power, so it will be low when the voltage in
SuperCAP is low.
CMOS Settings Wrong BIOS will load default value after it detects CMOS corruption. Error message is
triggered if BIOS fails to load the default value to CMOS.
CMOS Checksum Bad CMOS contents failed the checksum check. Error message indicates that the
CMOS data has been changed by a program other than the BIOS or the CMOS is
not retaining data due to hardware malfunction.
RAM R/W test failed Error message indicates BIOS fail to read/write to memory content during RAM R/
W test. RAM R/W test is executed during POST.
CMOS Date/Time Not Set Error message indicates BIOS has detected an invalid value in date & time
register. (e.g., Invalid date = 50h or invalid month = 13h).
System Event Log is Full Error message indicates the System Event Log storage is full.
Refresh timer test failed This timer is a counter based on 82C54 which provides memory refresh request
signal periodically. Memory content need to be refreshed to compensate for the
gradual leakage of charge from the capacitors which stores the data.
KBC BAT Test failed Error message indicates that Keyboard controller BAT test has failed.