Acer Aspire M3985 Desktop Service Guide
Page 84
..." on page 77 and "Beep Codes" on how to troubleshoot system hardware problems. Hardware Diagnostic Procedure IMPORTANT:The diagnostic tests described in as much detail as possible. 2. Verify the symptoms by attempting to test Acer products. NonAcerproducts, prototype cards, or modified options can give false errors and invalid systemresponses. 1. Chapter 4 System Troubleshooting This...
..." on page 77 and "Beep Codes" on how to troubleshoot system hardware problems. Hardware Diagnostic Procedure IMPORTANT:The diagnostic tests described in as much detail as possible. 2. Verify the symptoms by attempting to test Acer products. NonAcerproducts, prototype cards, or modified options can give false errors and invalid systemresponses. 1. Chapter 4 System Troubleshooting This...
Acer Aspire M3985 Desktop Service Guide
Page 87
...BSP) initialization like microcode update, frequency and other components before memory detection. Early chipset initialization is enabled. Perform keyboard controller BAT test. Verify that checkpoints may differ between different platforms based on the bottom right corner of I /O initialization is given to it.... is either a byte or word value output to I/O port 80h.The BIOS outputs checkpoints throughout bootblock and Power-On Self Test (POST) to indicate the task the system is stored in memory. Bootblock Initialization Code Checkpoints The Bootblock initialization code sets up...
...BSP) initialization like microcode update, frequency and other components before memory detection. Early chipset initialization is enabled. Perform keyboard controller BAT test. Verify that checkpoints may differ between different platforms based on the bottom right corner of I /O initialization is given to it.... is either a byte or word value output to I/O port 80h.The BIOS outputs checkpoints throughout bootblock and Power-On Self Test (POST) to indicate the task the system is stored in memory. Bootblock Initialization Code Checkpoints The Bootblock initialization code sets up...