Compaq HB1004 manual Diagnostic Tests, LED Diagnostic Test Functions, Test Function/Component

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2-6Installation

Diagnostic Tests

After power on, the hub automatically performs a diagnostic self-test. During this test, port status LEDs indicate the success or failure of each test.

The system tests each component one at a time. At the completion of the test, if no diagnostic LEDs are lit, then all components passed the test. If a component fails the test, the corresponding LED will continue blinking. The following table identifies the component that corresponds to each diagnostic test LED.

Figure 2-5Power On Self Test Diagnostic LEDs

Table 2-1

LED Diagnostic Test Functions

LED Series	LED Number	Test Function/Component
Partition/Disable	1	CPU
	2	Flash ROM 1
	3	SRAM
	4	LAN Controller
Link/Activity	1	HUB Controller
	2	Serial Port RS232 Controller
	3	EEPROM
	4	Flash ROM 2