HP Model 712/100 hp 9000 series 700 model 712 technical reference manual (a261 - Page 21
System Board, Functional Information, Diagnostics
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2 System Board Functional Information Diagnostics Self-Test and Extended Self-Test Self-Test is provided by the BOOT ROM and is executed as soon as the workstation is powered on. After power-on and boot, the front panel LED will flash, three quick flashes pause and repete if there is something wrong with the graphics subsystem. If the LED flashes in a three quarter of a second pattern the CPU is defective. Your system will run a series of diagnostic tests to check the hardware configuration. Figure 2-1 illustrates what you will see. BootRom Version xxx.x Memory Size: xx MB Press to stop boot sequence. Figure 2-1. I/O Test During Self-Test If an error occurs during the self test, you will see a second screen depicting an overview of the system unit components, as shown in Figure 2-2. Model 712 Technical Reference System Board 2-1