RadiSys EPC-23 Hardware Reference Manual page 12

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Installation and Configuration

Power-On Screen Display

During the setup and configuration of the EPC-23, a graphics adapter and monitor are

required.

Whenever a hardware reset of the EPC occurs (power-on or front panel reset), the

system performs a power-on self-test (POST). If not set for "quick boot," the POST

displays information showing the status of the BIOS self-test if a monitor is attached

via a video adapter. If everything proceeds normally, the screen image displays

approximately as shown below.

486SL Modular BIOS V3.06.

TESTING INTERRUPT CONTROLLER #1 ......................... OK

TESTING INTERRUPT CONTROLLER #2 ......................... OK

TESTING CMOS BATTERY .................................... OK

TESTING CMOS CHECKSUM ................................... OK

SIZING SYSTEM MEMORY .............................. 640K FOUND

TESTING SYSTEM MEMORY ............................. 640K OK

CHECKING UNEXPECTED INTERRUPTS AND STUCK NMI ............ OK

TESTING PROTECTED MODE .................................. OK

SIZING EXPANSION MEMORY .......................... 3328K FOUND

TESTING MEMORY IN PROTECTED MODE ................. 4352K FOUND

TESTING PROCESSOR EXCEPTION INTERRUPTS .................. OK

TESTING ONBOARD SERIAL PORT #1 .......................... OK

TESTING ONBOARD SERIAL PORT #2 .......................... OK

RadiSys EPC Setup Program

Figure 2. EPC-23 POST Display.

If errors occur during the power-on self-test, the BIOS displays the error on the

appropriate line of the screen display and attempts to continue. For instance, if a

failure is discovered in COM1, the BIOS disables COM1, displays the error on the

line "TESTING ONBOARD SERIAL PORT #1 ....." and then continues as if the

error did not occur. It is important to watch the POST display to verify that no errors

occur.

If error messages are displayed during or after the POST display, see chapter 5,

Troubleshooting & Error Messages.

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BIOS V3.06

Page 5

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