Lenovo NetVista Hardware Maintenence Manual for Netvista 6838 and 6848 systems - Page 75

Error Message, Start Options

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v Starts the video operation v Verifies that the diskette drive is working v Verifies that the hard disk drive is working If the POST finishes without detecting any problems, a single beep sounds and the first screen of the operating system or application program appears. Note: Type 6838, 6848 computers default to come up quiet (no beep and no memory count and checkpoint code display) when no errors are detected by POST. To enable beep and memory count and checkpoint code display when a successful POST occurs, do the following: 1. Select Start Options in the Configuration/Setup Utility program (see "Using the Configuration/Setup Utility program" on page 19). 2. Set Power-On Self-Test to Enhanced. If the POST detects a problem, an error message appears on the screen. A single problem can cause several error messages to appear. When you correct the cause of the first error message, the other error messages probably will not appear on the screen the next time you turn on the system. 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. Displaying the POST codes requires an add-in card, often called a POST card (PCI, not ISA). The POST card can decode the port and display the contents on a medium such as a seven-segment display. The tables below offer descriptions of the POST codes generated by the BIOS. Error Message FRU / Action GA20 Error 1. Replace system board. Pri Master HDD Error Pri Slave HDD Error Sec Master HDD Error Sec Slave HDD Error 1. Check/replace cables 2. Replace drive. 3. Replace system board. Pri Master Drive -ATAPI Incompatible 1. Run setup to make sure drive is selected Pri Slave Drive - ATAPI Incompatible correctly. Sec Master Drive - ATAPI Incompatible Sec Slave Drive - ATAPI Incompatible 2. Replace drive. A: Drive Error 1. Check/replace cables. 2. Replace drive. 3. Replace system board. Cache Memory Bad 1. Replace CPU. CMOS Battery Low 1. Replace battery. 2. Replace system board. Chapter 7. Symptom-to-FRU index 67

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v
Starts the video operation
v
Verifies that the diskette drive is working
v
Verifies that the hard disk drive is working
If the POST finishes without detecting any problems, a single beep sounds and the
first screen of the operating system or application program appears.
Note:
Type 6838, 6848 computers default to come up quiet (no beep and no memory count and
checkpoint code display) when no errors are detected by POST.
To enable beep and memory count and checkpoint code display when a successful POST
occurs, do the following:
1.
Select
Start Options
in the Configuration/Setup Utility program (see “Using the
Configuration/Setup Utility program” on page 19).
2.
Set
Power-On Self-Test
to
Enhanced
.
If the POST detects a problem, an error message appears on the screen. A single
problem can cause several error messages to appear. When you correct the cause of
the first error message, the other error messages probably will not appear on the
screen the next time you turn on the system.
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.
Displaying the POST codes requires an add-in card, often called a POST card (PCI,
not ISA). The POST card can decode the port and display the contents on a
medium such as a seven-segment display.
The tables below offer descriptions of the POST codes generated by the BIOS.
Error Message
FRU / Action
GA20 Error
1.
Replace system board.
Pri Master HDD Error Pri Slave HDD
Error Sec Master HDD Error Sec Slave
HDD Error
1.
Check/replace cables
2.
Replace drive.
3.
Replace system board.
Pri Master Drive -ATAPI Incompatible
Pri Slave Drive - ATAPI Incompatible
Sec Master Drive - ATAPI Incompatible
Sec Slave Drive - ATAPI Incompatible
1.
Run setup to make sure drive is selected
correctly.
2.
Replace drive.
A: Drive Error
1.
Check/replace cables.
2.
Replace drive.
3.
Replace system board.
Cache Memory Bad
1.
Replace CPU.
CMOS Battery Low
1.
Replace battery.
2.
Replace system board.
Chapter 7. Symptom-to-FRU index
67