Compaq Armada m700 Compaq Armada M700 Series of Personal Computers Maintenance - Page 37

Fatal errors emit a beep and may display a FATAL message. Fatal errors indicate severe problems, such as a hardware failure. Fatal errors do not allow the system to resume. Some of the Fatal error beep codes are listed at the end of this section. Table 2-2 Fatal Error Messages Message Description Beep code CMOS RAM test failed A walking bit test of CMOS RAM location 0E 3 (Hex) - 3F (Hex) failed. DMA controller faulty A sequential read/write of the transfer count 4 and transfer address registers within the primary and secondary DMA controllers failed. Faulty DMA page registers A walking bit read/write of the 16 DMA 0 controller page registers starting at location 80 Hex failed. Faulty refresh circuits A continuous read/write test of port 61h 1 found that bit 4 (Refresh Detect) failed to toggle within an allotted amount of time. Interrupt controller failed A sequential read/write of various Interrupt 5 Controller registers failed. ROM checksum incorrect A checksum of the ROM BIOS does not 2 match the byte value at F000:FFFF. RAM error at location xxxx RAM error occurred during memory test. None *Beep codes are defined in Table 2-3. Table 2-3 Fatal Error Beep Codes Beep Code Beep Sequence Description Recommended Action 0 S-S-S-P-S-S-L-P The DMA page registers are Replace system board. faulty. 1 S-S-S-P-S-L-S-P The refresh circuitry is faulty. 2 S-S-S-P-S-L-L-P The ROM checksum is incorrect. 3 S-S-S-P-L-S-S-P The CMOS RAM test failed. 4 S-S-S-P-L-S-L-P The DMA controller is faulty. 5 S-S-S-P-L-L-S-P The interrupt controller failed. 6 S-S-S-P-L-L-L-P The keyboard controller failed. 7 S-S-L-P-S-S-S-P Graphics adapter is faulty. 8 S-S-L-P-S-S-L-P Internal RAM is faulty. Replace memory board or system board if memory on system board is faulty. NOTE: S = Short, L = Long, P = Pause 2-6 Troubleshooting