Chapter 4
Chapter 4
65
Troubleshooting
This chapter provides troubleshooting information for the Aspire 3300:
❑
Power-On Self-Test (POST)
❑
Index of Symptoms, Messages, Error Codes, or Beeps
❑
Diagnostics
❑
Undetermined Problems
Power-On Self-Test (POST)
Each time you turn on the system, the power-on self test (POST) is initiated.
Several items are tested during POST, but is for the most part transparent to the
user.
The Power-On Self Test (POST) is a BIOS procedure that boots the system,
initializes and diagnoses the system components, and controls the operation of
the power-on password option. If POST discovers errors in system operations
at power-on, it displays error messages, generates a check point code at port
80h or even halts the system if the error is fatal.
The main components on the system board that must be diagnosed and/or
initialized by POST to ensure system functionality are as follows:
❑
Microprocessor with built-in numeric coprocessor and cache memory
subsystem
❑
Direct memory access (DMA) controller (8237 module)
❑
Interrupt system (8259 module)
❑
Three programmable timers (system timer and 8254 module)
❑
ROM subsystem
❑
RAM subsystem
❑
RTC RAM subsystem and real time clock/calendar with battery backup
❑
Onboard serial interface controller
❑
Onboard parallel interface controller
❑
Embedded hard disk interface and one diskette drive interface
❑
Keyboard and auxiliary device controllers
❑
I/O ports
❑
PS/2-compatible
mouse
port
❑
PS/2-compatible keyboard port
Summary of Contents for Aspire 3300
Page 70: ...62 Removal and Replacement 3 Remove the CPU ...
Page 72: ...64 Removal and Replacement ...
Page 78: ...70 Troubleshooting ...
Page 79: ...Chapter 5 Chapter 5 71 Jumper and Connector Information ...
Page 92: ...84 FRU Field Replaceable Unit List ...
Page 94: ...86 Model Number and Configurations ...
Page 104: ...96 Test Compatible Components List ...
Page 106: ...98 Online Support Information ...