Acer Aspire X3475 Desktop Service Guide
Page 88
...cards, or modified options can give false errors and invalid systemresponses. 1. Obtain the failing symptoms in this chapter are only intended to test Acer products. Chapter 4 80 Refer to "Power System check" on page 81 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. Chapter 4 System Troubleshooting This chapter provides instructions on page 82 to determine which corrective...
...cards, or modified options can give false errors and invalid systemresponses. 1. Obtain the failing symptoms in this chapter are only intended to test Acer products. Chapter 4 80 Refer to "Power System check" on page 81 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. Chapter 4 System Troubleshooting This chapter provides instructions on page 82 to determine which corrective...
Acer Aspire X3475 Desktop Service Guide
Page 91
...Verify the boot block checksum. Re-enable CACHE. Main BIOS checksum is necessary,control flows to checkpoint E0. If BIOS recovery is tested. Restore CPUID value back into memory. Checkpoint sare very useful in aiding software developers or technicians in memory. System will be enabled ... A checkpoint 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 done. Early chipset initialization is currently executing. Store the Uncompressed pointer for future use in...
...Verify the boot block checksum. Re-enable CACHE. Main BIOS checksum is necessary,control flows to checkpoint E0. If BIOS recovery is tested. Restore CPUID value back into memory. Checkpoint sare very useful in aiding software developers or technicians in memory. System will be enabled ... A checkpoint 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 done. Early chipset initialization is currently executing. Store the Uncompressed pointer for future use in...