Acer Aspire 3300s Service Guide

55Chapter 3
8.Remove the four screws as shown here then detach the floppy disk drive from the frame.
9.Disconnect micro switch cable from the FDD and DVD frame.
Removing the Intrusion Alarm Cable
1.See “Opening the Housing” on page 51
2.See “Removing the FDD and DVD Frame” on page 53”
3.Detach the intrusion alarm cable from the FDD and DVD Frame. 

Chapter 356
Removing the USB and Audio Board
1.See “Opening the Housing” on page 51
2.See “Removing the EMI Audio Cover” on page 52
3.See “Removing the FDD and DVD Frame” on page 53
4.Disconnect the USB board cable and audio board cable from the USB and audio board.
5.Remove the two screws as shown here then detach the USB and audio board from the lower case.
Removing the Hard Disk Drive
1.See “Opening the Housing” on page 51
2.See “Removing the FDD and DVD Frame” on page 53
3.Disconnect the IDE cable...

57Chapter 3
5.Slide the hard disk drive frame to the right and then gently move it inward to detach it from 
        the lower case.
6.Remove the four screws as shown and then detach the hard disk drive from the frame.
Removing the DIMM
1.See “Opening the Housing” on page 51
2.See “Removing the FDD and DVD Frame” on page 53”
3.To release the system memory, press down and out on the levers on both sides of the DIMM socket.
4.Gently pull the DIMM out of the socket. 

Chapter 358
Removing the Power Supply
1.See “Opening the Housing” on page 51.
2.See “Removing the FDD and DVD Frame” on page 53”
3.Remove the two screws as shown here.
4.Disconnect the power cable from the main board. 
5.Gently remove the power supply from the system.
Removing the RTC Battery
1.See “Opening the Housing” on page 51
2.To remove the RTC battery from the holder, gently remove it from the holder by hand. 

59Chapter 3
Removing the Processor
1.See “Opening the Housing” on page 51
2.See “Removing the FDD and DVD Frame” on page 53”
3.Disconnect the fan sink cable from the main board, and then release the two levers on both sides of the 
fan sink.
.
4.Put the two levers back to the original position, and then remove the CPU fan sink from the main board
5.Lift up the socket lever, pull the CPU out from the socket carefully and then put the socket lever back to its 
original position. 

Chapter 360
Removing the Main board
1.See “Opening the Housing” on page 51
2.See “Removing the FDD and DVD Frame” on page 53
3.Remove the six screws as shown here then detach the main board from the lower case. 

61Chapter 3 

Chapter 462
This chapter provides troubleshooting information for the Aspire 3300S: 
TPower-On Self-Test (POST)
T Index of Error Message
TIndex of Error Symptoms
TUndetermined Problems
Chapter 4
Troubleshooting 

63Chapter 4
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 on screen, generates a check point...

Chapter 464
03h Initial Superio_Early _Init switch
04h Reserved
05h 1. Blank out screen
2. Clear CMOS error flag
06h Reserved
07h 1. Clear 8042 interface
2. Initialize 8042 self-test
08h 1. Test special keyboard controller for Winbond 977 series Super I/O chips.
2. Enable keyboard interface.
09h Reserved
0Ah 1. Disable PS/2 mouse interface (optional)
2. Auto detect ports for keyboard & mouse followed by a port & interface swap (optional).
3. Reset keyboard for Winbond 977 series Super I/Q chips.
0Bh...