FIC A360 User Manual

Page of 187
 
Troubleshooting and Repair 
6.2.2 Informational 
Messages 
This section lists the messages that provide information to the user but require no action. 
 
Table 6-2 
BIOS Informational Messages 
Message Meaning 
nnnK Base Memory 
The amount of base memory that tested successfully. 
nnnK Extended 
The amount of extended memory that tested successfully. 
Memory tests terminated by 
keystroke 
The message indicates that a user pressed the spacebar 
while memory tests were running and stopped the 
memory tests. 
Press the F1 key to continue 
This message indicates that an error was found during 
POST. Pressing the F1 key allows the system to attempt 
to reboot. 
Beginning memory test Press the 
SPACEBAR to terminate the 
memory test 
A user can stop the memory tests by pressing the 
spacebar. 
Press the F1 key to continue, F2 
to run the Setup utility 
This message indicates that an error was found during 
POST. Pressing the F1 key allows the system to attempt 
to boot. Press F2 allows users to run the ROM-based 
SETUP utility to correct configuration information. 
6.2.3 Beep 
Codes 
Beep codes are used to identify a POST error that occurs when the screen is not available. 
Once the screen is operating, diagnostic messages are reported to the screen. There are beep 
codes for both fatal and non-fatal system board errors. 
 
No beep code is generated if a test is aborted while in progress. However, 
diagnostic cards can be installed in order to display the contents of the 
diagnostic port 80h and identify the area of failure. 
 
Explanation of test terms for beep code table 
The following terms are used in the Test Performed column of the beep code table: 
 
1.  Pattern test - One or more particular patterns are written to a location then read back 
from the same location. Examples of patterns used are 55h and AAh. If the value read 
does not match the value written, the test is considered a failure.  
 
2.  Rolling ones test - Several patterns are constructed. These patterns represent a one rolling 
through the given location. For example, to roll a one through three bits, the following 
patterns would be constructed: 001, 010, 011, 100, 101, 110, and 111. The patterns are 
written to the location and then read back, one by one. If the value read does not match 
the value written, the test is considered a failure. 
 
3.  Rolling zeros test - Several patterns are constructed. These patterns represent a zero 
rolling through the given location. For example, to roll a zero through three bits, the 
following patterns would be constructed: 011, 001, and 000. The patterns are written to 
the location and then read back, one by one. If the value read does not match the value 
written, the test is considered a failure. 
 
4.  Checksum test - All of the values in a given range of locations are added together. The 
 
6-4 
FIC A360 Service Manual