errorfaq/PhoenixPhoenix error codes53 codes — tap one for its meaning, causes, and fix steps.01020304050608090A0C0E1-21-31-4101214182-12-22021222324252728303132333435363738393C40425054708094A0B0C001×× (1)01Test 8253 timer02×× (1)02First 64K RAM failed03×× (1)03First 1K parity check failed04×× (1)04Initialize 8259 interrupt controller05×× (1)05Second 1K RAM test, BIOS data area, failed06×× (1)06Initialize system hardware08×× (1)08Initialize chipset registers with initial POST values09×× (1)09Set in POST flag0A×× (1)0AInitialize CPU registers0C×× (1)0CInitialize cache to initial POST values0E×× (1)0EInitialize I/O1-2×× (2)1-2Search for option ROMs. One long, two short beeps on checksum failure1-2-2-3BIOS ROM checksum1-3×× (4)1-3-1-1Test DRAM refresh1-3-1-3Test 8742 Keyboard Controller1-3-4-1RAM failure on address line xxxx1-3-4-3RAM failure on data bits xxxx of low byte of memory bus1-4×× (1)1-4-1-1RAM failure on data bits of high byte of memory bus10×× (1)10Initialize power management12×× (1)12Jump to user patch 014×× (1)14Initialize keyboard controller18×× (1)18BIOS ROM checksum2-1×× (1)2-1-2-3Check ROM copyright notice2-2×× (1)2-2-3-1Test for unexpected interrupts20×× (1)20Test DRAM refresh21×× (1)21Master DMA register failure22×× (1)22Master interrupt mask register failure23×× (1)23Slave interrupt mask register failure24×× (1)24Set ES segment register to 4GB25×× (1)25Interrupt vector loading in progress27×× (1)27Keyboard controller test failure28×× (1)28Autosize DRAM30×× (1)30Test base address memory31×× (1)31Mono monitor believed operational32×× (1)32Test CPU bus clock frequency33×× (1)33Color monitor (80 columns) believed operational34×× (1)34Test CMOS RAM35×× (1)35Shutdown test in progress or failure36×× (1)36Gate A20 failure37×× (1)37Unexpected interrupt in protected mode38×× (1)38Shadow system BIOS ROM39×× (1)39Memory high address line failure at 100000-FFFFFF3C×× (1)3CConfigure advanced chipset registers40×× (1)40Set initial CPU speed42×× (1)42Initialize interrupt vectors50×× (1)50Display CPU type and speed54×× (1)54Test keyboard70×× (1)70Display error messages80×× (1)80Disable onboard I/O ports94×× (1)94Disable A20 address linesA0×× (1)A0Set time of dayB0×× (1)B0Check for errorsC0×× (1)C0Try to boot with interrupt 19Search all codes →