Intel
®
Core™ 2 Duo Processor and Intel
®
Core™ Duo Processor with Intel
®
E7520 Chipset
Development Kit
Intel
®
Core™ 2 Duo Processor and Intel
®
Core™ Duo Processor with Intel
®
E7520 Chipset Development Kit
User’s Manual
January 2007
62
Order Number: 316068-001US
8.0
Debug Procedure
The debug procedure in this section is used to determine baseline functionality for the
Intel
®
Core™ 2 Duo Processor and Intel
®
Core™ Duo Processor with Intel
®
E7520
Chipset Development Kit. This is a cursory set of tests designed to provide a level of
confidence in the platform operation.
8.1
Level 1 Debug (Port80/BIOS)
Refer to the steps in
Table 27
when debugging a board that does not boot.
8.2
Level 2 Debug (Power Sequence)
Table 27. Level 1 Debug (Port80/BIOS)
Step
Test
Passing Criteria
Cause of Failure
1
Verify “SYSTEM PWRGD” LED
Green
Power sequence failure – go
immediately to Level 2 debug
2
Is “PCI Reset” LED illuminated? Decimal on Port 80 display
RED
PCI reset stuck – go to Level 3 debug
3
Verify CPURST LED is off
Off
CPU reset stuck – go to Level 3
debug
4
Verify Port 80 posting
Port 80 LEDs are posting
boot codes and stopping
System Hang – Check BIOS go to
level 3 debug. Refer to AMI* BIOS
documentation for details.
5
Verify BIOS settings
Latest BIOS installed
Contact Intel representative for the
latest BIOS image
6
Verify default jumper settings
See default settings
Improper jumper settings
Table 28. Level 2 Debug (Power Sequence)
Step
Test
Passing Criteria
Cause of Failure
1
Primary power supply voltages
Measure voltages across:
3.3 V
-12 V
5 V
5 V
12 V
External power supply failure
2
1.8V
1.8 V
DDR2 power supply failure
3
1.5V
1.5 V
MCH/ICH core power supply failure
4
1.8V VSBY
1.8 V
DDR2 standby power supply failure
5
CPU VTT Power Supply
1.05 V
CPU_VTT power supply failure
6
CPU0 VRD
1.2 V–1.4 V
CPU0 VRD failure
7
CPU1 VRD
1.2 V–1.4 V
CPU1 VRD failure
8
Verify “SYSTEM PWRGD” LED
Green
Power sequence failure