Acer R310 manual Checkpoint Beep Code Description

28		3 Getting Started
Checkpoint	Beep Code	Description
Code
58h	2-2-3-1	Test for unexpected interrupts. First do an
		STI for hot interrupts. Secondly, test the NMI
		for an unexpected interrupt. Thirdly, enable
		the parity checkers and read from memory,
		checking for an unexpected interrupt.
59h		Register POST Display Services, fonts, and
		languages with the POST Dispatch Manager.
5Ah		Display prompt “Press F2 to enter SETUP.”
5Bh		Disable CPU cache.
5Ch		Test RAM between 512K and 640K.
60h		Determine and test the amount of extended
		memory available. Determine if memory
		exists by writing to a few strategic locations
		and see if the data can be read back. If so,
		perform an address-line test and a RAM test
		on the memory. Save the total extended
		memory size in the CMOS at cmosExtended.
62h		Perform an address line test on A0 to the
		amount of memory available. This test is
		dependent on the processor, since the test
		will vary depending on the width of mem-
		ory (16 or 32 bits). This test will also use A20
		as the skew address to prevent corruption
		of the system memory.
64h		Jump to UserPatch1. See "The POST Compo-
		nent."
66h		Set cache registers to their CMOS values if
		CMOS is valid, unless auto configuration is
		enabled, in which case load cache registers
		from the Setup default table.
67h		Quick initialization of all Application Proces-
		sors in a multi-processor system.