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Dell.com 카트

Dell OptiPlex 3070 Micro Service Manual

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Diagnostics

The computer POST (Power On Self Test) ensures that it meets the basic computer requirements and the hardware is working appropriately before the boot process begins. If the computer passes the POST, the computer continues to start in a normal mode. However, if the computer fails the POST, the computer emits a series of LED codes during the start-up. The system LED is integrated on the Power button.

The following table shows different light patterns and what they indicate.

Table 1. Power LED summary The following table provides the power led summary and what they indicate.
Amber LED stateWhite LED state System stateNotes
OffOffS4, S5

  • Hibernate or Suspend to Disk (S4)

  • Power is off (S5)
Off BlinkingS1, S3

System is in a low power state, either S1 or S3. This does not indicate a fault condition.

Previous State Previous State S3, no PWRGD_PSThis entry provides for the possibility of a delay from SLP_S3# active to PWRGD_PS inactive.
BlinkingOffS0, no PWRGD_PS

Boot Failure - The computer is receiving electrical power, and power supplied by the power supply is normal. A device might be malfunctioning or incorrectly installed. Refer to the table below for Amber Blinking Pattern diagnostics suggestion and possible failures.

Steady OffS0, no PWRGD_PS, Code fetch = 0

Boot Failure - This is a system fault error condition, including the power supply. Only the +5VSB rail on the power supply is working correctly.

OffSteadyS0, no PWRGD_PS, Code fetch = 1This indicates that the host BIOS has started to execute and the LED register is now writable.
Table 2. Amber LED blinking failuresThe following table provides the amber led blinking and what they indicate.
Amber LED stateWhite LED state System stateNotes
21Bad MBDBad MBD - Rows A, G, H, and J from table 12.4 of SIO Spec - Pre-Post indicators [40]
22Bad MB, PSU or cablingBad MBD, PSU or PSU cabling - Rows B, C and D of table 12.4 SIO spec [40]
23Bad MBD, DIMMS, or CPUBad MBD, DIMMS or CPU - Rows F and K from table 12.4 of SIO spec [40]
24Bad coin cellBad coin cell - Row M of table 12.4 in SIO spec [40]
Table 3. States Under Host BIOS Control The following table provides the different light patterns and what they indicate.
Amber LED stateWhite LED state System stateNotes
25BIOS state 1BIOS Post code (Old LED pattern 0001) Corrupt BIOS.
26BIOS state 2BIOS Post code (Old LED pattern 0010) CPU config or CPU failure.
27BIOS state 3BIOS Post code (Old LED pattern 0011) MEM config in process. Appropriate mem modules detected but failure has occurred.
31BIOS state 4BIOS Post code (Old LED pattern 0100) Combine PCI device config or failure with video sub sytem config or failure. BIOS to eliminate 0101 video code.
32BIOS state 5BIOS Post code (Old LED pattern 0110) Combine storage and USB config or failure. BIOS to eliminate 0111 USB code.
33BIOS state 6BIOS Post code (Old LED pattern 1000) MEM config, no memory detected.
34BIOS state 7BIOS Post code (Old LED pattern 1001) Fatal Motherboard error.
35BIOS state 8BIOS Post code (Old LED pattern 1010) Mem config, modules incompatible or invalid config.
36BIOS state 9BIOS Post code (Old LED pattern 1011) combine "Other pre-video activity and resource configuration codes. BIOS to eliminate 1100 code.
37BIOS state 10BIOS Post code (Old LED pattern 1110) Other pre-post activity, routine subsequent to video init.

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