BIOS ROM Checksum Errors If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: The read-only memory (ROM) containing the BIOS program is protected by a checksum value as a double-check that the ROM code is correct. This checksum is compared …

Timer Errors If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: There is an error being reported with one of the system timers on the motherboard. Diagnosis: This is usually a motherboard or on-board system device problem. For the most …

Hard Disk Initializing; Please wait a moment… If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: Early computer systems inherently took a long time to boot. Computers have gotten much faster and people naturally want them to boot in less …

Memory Test Message If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: The system is testing the system memory. Diagnosis: The system is behaving normally, as long as it continues to boot and doesn’t halt when this message is displayed. …

CH-1 and CH-2 Timer (Timing) Error If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: There is an error that involves one of the system timers on the motherboard. Diagnosis: Although this error is usually relates only to a problem …

CPU at XXX (XXX= a reported speed) If you have arrived here through a search engine, and there’s no menu to the left click here! CPU at XXX Explanation: The system is reporting the speed of the processor. On early motherboards, and even some recent vintage such as the Iwill …

Override Enabled – Defaults Loaded If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: The system found that the current BIOS settings in the CMOS memory are invalid or corrupt, and loaded the default settings that are stored in the …

Operating System Not Found If you have arrived here through a search engine, and there’s no menu to the left click here! Missing Operating System or Operating System Not Found ..on boot device or boot sector bad (either hard or floppy disk) Explanation: The system found a boot device, either …

Display type has changed since last boot If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: The BIOS POST has detected that the display type has changed since the last time the PC was booted (started), and there is a …

ROM Checksum Error If you have arrived here through a search engine, and there’s no menu to the left click here! Explanation: Some peripheral devices and expansion cards contain executable BIOS code stored in a ROM (Read Only Memory). The ROM has a checksum value in it that is used …