HP E700 manual Fatal Error Messages, Message Description Beep code

Table 2-1 Continued

Hard disk controller error	The hard drive controller	Check the drive parameters. Turn
	failed to respond to the	off the system and check all
	reset command.	related connections.
Keyboard controller failure	The keyboard failed the	Replace the system board.
	self-test command.
Keyboard failure	The keyboard failed to	Replace the keyboard. If the
	respond to the RESET ID	problem persists, replace the
	command.	system board.
No interrupts from Timer 0	The periodic timer interrupt	Replace the system board.
	is not occurring.
ROM at xxxx (LENGTH yyyy)	An illegal adapter ROM	Check the external adapter (such
with nonzero checksum (zz)	was located at the	as a video card) to determine if
	specified address.	it is causing the conflict.
Time/Date corrupt - run SCU	The time and date stored	1. Run Computer Setup.
	in the real time clock have	2. If problem persists, replace
	been corrupted, possibly	auxiliary battery.
	by a power loss.	3. If problems persists, replace
		system board.

Hard disk xx failure (or error)

A failure or an error occurred when trying to access the hard drive.

1.Run ScanDisk.

2.Check disk in DOS and Windows 95.

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	3
	0E (Hex) - 3F (Hex) failed.
DMA controller faulty	A sequential read/write of the transfer	4
	count 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	5
	Interrupt 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.

Troubleshooting 2-5