Phoenix BIOS Beep codes are significantly more complicated than other BIOS manufacturers.  BIOS 1.x systems used a series of three sets, while the Phoenix BIOS 4.x systems use a series of four sets. The codes listed below are only some of the more than 100 codes for the Phoenix BIOS 4.x. For a complete list of Phoenix BIOS POST task routines and beep codes, please visit their Web site or review your motherboard's documentation. IT Technician Rakibul Islam Salafi
Number of beeps	POST routine description/problem		Troubleshooting recommendation
1	One short beep before boot		Normal operation
1-1-1-3	Verify real mode		A problem exists with the CPU and/or motherboard. Check and replace if necessary.
1-1-2-1	Get CPU type		A problem exists with the CPU and/or motherboard. Check and replace if necessary.
1-1-2-3	Initialize system hardware		A problem exists with the motherboard. Check and replace if necessary.
1-1-3-1	Initialize chipset with initial POST values		A problem exists with the motherboard. Check and replace if necessary.
1-1-3-2	Set IN POST flag		A problem exists with the motherboard. Check and replace if necessary.
1-1-3-3	Initialize CPU registers		A problem exists with the CPU and/or motherboard. Check and replace if necessary.
1-1-4-3	Initialize I/O component		A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard.
1-2-2-1	Initialize keyboard controller	An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard.
1-2-2-3	BIOS ROM checksum	Replace either the BIOS ROM chip or the motherboard.
1-2-3-3	8237 DMA controller initialization	Check the motherboard and any expansion cards that use DMA.
1-3-1-1	Test DRAM refresh	Check the first bank of memory and the motherboard.
1-3-1-3	Test 8742 keyboard controller	An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard.
1-3-4-1	RAM failure on line xxxx	Check the first bank of memory and the motherboard.
1-3-4-3	RAM failure on data bits xxxx of low byte memory bus	Check the first bank of memory and the motherboard.
2-1-3-1	Check video configuration against CMOS	Check the video card or video card memory.
2-1-3-2	Initialize PCI bus and devices	A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard.
2-2-1-3	Test keyboard	An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard.
2-2-3-1	Test for unexpected interrupts	Check for a faulty motherboard or expansion card.
3-1-2-1	Detect and install external parallel ports	A problem exists with the I/O port hardware or a device connected to an I/O port. It could also be an expansion device in the PC or the motherboard.
3-1-4-1	Initialize floppy controller	Check your hard drive(s), floppy drive(s), and motherboard.
3-2-1-1	Initialize hard-disk controllers	Check your hard drive(s), floppy drive(s), and motherboard.
3-2-1-2	Initialize local-bus hard-disk controllers	Check your hard drive(s), floppy drive(s), and motherboard.
3-3-1-1	Set time of day	Check the motherboard's real-time clock (RTC).
4-2-4-3	Keyboard controller failure	An error has occurred with the keyboard or keyboard controller. Try a new keyboard or replace the keyboard controller on the motherboard.