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1 Phoenix BIOS Beep - BIOS Central 1 di 16 13/02/ :45 Home Forums About Us Awards Contact Us Upgrade your BIOS BIOS UPDATES Click to scan for Bios Updates BIOS Post: Acer BIOS Post ALR BIOS Post AMIT/AMI BIOS Post Arche Legacy BIOS Post AST BIOS Post AT&T BIOS Post Award BIOS Post Chips & Technologies BIOS Post Compaq BIOS Post Dell BIOS Post DTK BIOS Post Eurosoft/Mylex BIOS Post Phoenix ISA/MCA/EISA BIOS Beep : The beep codes are represented in the number of beeps. E.g would mean 1 beep, a pause, 1 beep, a pause, and 2 beeps. With a Dell computer, a 1-2 beep code can also indicate that a bootable add-in card is installed but no boot device is attached. For example, in you insert a Promise Ultra-66 card but do not connect a hard drive to it, you will get the beep code. I verified this with a SIIG (crap -- avoid like the plague) Ultra-66 card, and then confirmed the results with Dell. Submitted by John Palmer. Beeps Error Message CPU test Description The CPU is faulty. System Specific Diagnostic and POST Error Messages: IBM Diagnostic Error Compaq Desktop Systems Diagnostic and POST Errors BIOS Related Pages: BIOS Data Area BiosCentral Forums BIOS Basics BIOS and Computer Links BIOS Int 13 Error BIOS Services

2 Phoenix BIOS Beep - BIOS Central Faraday A-Tease BIOS Post HP BIOS Post IBM BIOS Post Landmark BIOS Post Microid Research/Mr BIOS Post NCR BIOS Post Olivetti BIOS Post Phillips BIOS Post Phoenix BIOS Post Quadtel BIOS Post Supersoft BIOS Post Tandon BIOS Post Zenith BIOS Post Intel Motherboards: CA810E CC820 SE440BX-2 D810E2CB D810EMO D815BN D815EEA Low Low System board select CMOS read/write error Extended CMOS RAM BIOS ROM checksum error PIT CPU The motherboard is having an undetermined fault. Replace the motherboard The real time clock/cmos is faulty. CMOS if The extended portion of the CMOS RAM CMOS if The BIOS ROM BIOS or upgrade if The programmable interrupt timer Replace if CMOS Memory Map Debug Routines Interrupts BIOS Beep : AMI BIOS Beep AST BIOS Beep Award BIOS Beep Compaq BIOS Beep IBM BIOS Beep Mylex BIOS Beep Phoenix BIOS Beep Quadtel BIOS Beep Free Stuff: 2 di 16 13/02/ :45

3 Phoenix BIOS Beep - BIOS Central D815EPEA D820LP SE440BX SR440BX JN440BX LB440GX/L440GX N440BX/NA440BX OR840 T440BX RC440BX VC DMA DMA read/write RAM refresh The DMA controller has The DMA controller has The RAM refresh controller has failed Site Comments Utility Downloads My Other Pages: My Systems Site Comments Utility Downloads The test of the first has failed to start First 64KB RAM The first RAM IC First 64KB logic The first RAM control logic has failed Address line The address line to the first has failed Parity RAM The first RAM IC 3 di 16 13/02/ :45

4 Phoenix BIOS Beep - BIOS Central EISA fail-safe timer test EISA NMI port 462 test Replace if motherboard motherboard Bit 0; This Bit 1; This Bit 2; This Bit 3; This 4 di 16 13/02/ :45

5 Phoenix BIOS Beep - BIOS Central Bit 4; This Bit 5; This Bit 6; This Bit 7; This Bit 8; This Bit 9; This 5 di 16 13/02/ :45

6 Phoenix BIOS Beep - BIOS Central Bit 10; This Bit 11; This Bit 12; This Bit 13; This Bit 14; This 6 di 16 13/02/ :45

7 Phoenix BIOS Beep - BIOS Central Slave DMA register Master DMA register Master interrupt mask register Slave interrupt mask register Interrupt vector error Bit 15; This The DMA controller has controller if The DMA controller had controller if The interrupt controller IC has failed The interrupt controller IC has failed The BIOS was unable to load the interrupt vectors into memory. 7 di 16 13/02/ :45

8 Phoenix BIOS Beep - BIOS Central 8 di 16 13/02/ : Reserved Keyboard controller CMOS RAM power bad CMOS configuration error Reserved Video memory Video initialization motherboard The keyboard controller has CMOS battery or CMOS RAM The CMOS configuration Restore the configuration or replace the battery if There is a problem with the video memory. video adapter There is a problem with the video adapter.

9 Phoenix BIOS Beep - BIOS Central Timer Shutdown Gate A20 Unexpected interrupt in protected mode RAM test Interval timer Reseat the adapter or replace the adapter if The system's timer IC has The CMOS has CMOS IC if The keyboard controller has This is a CPU problem. CPU and retest System RAM addressing circuitry is faulty. motherboard The system timer IC has 9 di 16 13/02/ :45

10 Phoenix BIOS Beep - BIOS Central channel 2 Time of day clock Serial port Parallel port Math coprocessor The real time clock/cmos CMOS if A error has occurred in the serial port circuitry A error has occurred in the parallel port circuitry The math coprocessor If, replace the MPU Beeps Description Verify real mode Get CPU type Initialize system hardware Initialize chipset registers with initial values Set in POST flag 10 di 16 13/02/ :45

11 Phoenix BIOS Beep - BIOS Central 11 di 16 13/02/ : Initialize CPU registers Initialize cache to initial values Initialize I/O Initialize power management Load alternative registers with initial POST values Jump to UserPatch Initialize timer initialization timer initialization 8237 DMA controller initialization Reset Programmable Interrupt Controller Test DRAM refresh Test 8742 Keyboard Controller Set ES segment register to GB Autosize DRAM Clear 512K base memory Test 512K base address lines Test 51K base memory Test CPU bus-clock frequency CMOS RAM read/write (this commonly indicates a problem on the ISA bus such as a card not

12 Phoenix BIOS Beep - BIOS Central seated) Reinitialize the chipset Shadow system BIOS ROM Reinitialize the cache Autosize the cache Configure advanced chipset registers Load alternate registers with CMOS values Set initial CPU speed Initialize interrupt vectors Initialize BIOS interrupts Check ROM copyright notice Initialize manager for PCI Options ROMs Check video configuration against CMOS Initialize PCI bus and devices initialize all video adapters in system Shadow video BIOS ROM Display copyright notice Display CPU type and speed Test keyboard Set key click if enabled Enable keyboard Test for unexpected interrupts 12 di 16 13/02/ :45

13 Phoenix BIOS Beep - BIOS Central Display prompt "Press F to enter setup" Test RAM between 512K and 640K Test expanded memory Test extended memory address lines Jump to UserPatch1 Enable external and CPU caches Configure advanced cache registers Enable external and CPU caches Initialize SMI handler Display external cache size Display shadow message Display non-disposable segments Display error messages Check for configuration errors Test real-time clock Check for keyboard errors Setup hardware interrupt vectors Test coprocessor if present Disable onboard I/O ports Detect and install external RS232 ports 13 di 16 13/02/ :45

14 Phoenix BIOS Beep - BIOS Central Detect and install external parallel ports Reinitialize onboard I/O ports Initialize BIOS Data Area Initialize Extended BIOS Data Area Initialize floppy controller Initialize hard disk controller Initialize local bus hard disk controller Jump to UserPatch Disable A20 address line Clear huge ES segment register Search for option ROMs Shadow option ROMs Setup power management Enable hardware interrupts Set time of day Check key lock Erase F2 prompt Scan for F2 keystroke Enter SETUP Clear in-post flag Check for errors POST done - prepare to boot operating system One beep Check password (optional) 14 di 16 13/02/ :45

15 Phoenix BIOS Beep - BIOS Central 15 di 16 13/02/ :45 Clear global descriptor table Clear parity checkers Check virus and backup reminders Try to boot with INT Interrupt handler error Unknown interrupt error Pending interrupt error Initialize option ROM error Shutdown error Extended Block Move Shutdown 10 error Keyboard Controller (most likely problem is with RAM or cache unless no video is present) Initialize the chipset Initialize refresh counter Check for Forced Flash BIOS ROM is OK Do a complete RAM test Do OEM initialization Initialize interrupt controller Read in bootstrap code Initialize all vectors Initialize the boot device Boot code was read OK

16 Phoenix BIOS Beep - BIOS Central 16 di 16 13/02/ :45 Copyright by Bob Hurt. All rights reserved. Bios Central is a trademark of Bob Hurt.