Compaq E500S, V300 manual Fatal Error Messages, Message Description Beep code

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	3
	CMOS RAM location 0E
	(Hex) - 3F (Hex) failed.
DMA controller faulty	A sequential read/write	4
	of the transfer count and
	transfer address
	registers within the
	primary and secondary
	DMA controllers failed.
Faulty DMA page	A walking bit read/write	0
registers	of the 16 DMA controller
	page registers starting at
	location 80 Hex failed.
Faulty refresh circuits	A continuous read/write	1
	test of port 61h found
	that bit 4 (Refresh
	Detect) failed to toggle
	within an allotted amount
	of time.
Interrupt controller failed	A sequential read/write	5
	of various Interrupt
	Controller registers
	failed.
ROM checksum	A checksum of the ROM	2
incorrect	BIOS does not match
	the byte value at
	F000:FFFF.
RAM error at location	RAM error occurred	None
xxxx	during memory test.

*Beep codes are defined in Table 2-3.

Troubleshooting 2-7