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POST Error Message | Description/Action |
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CMOS battery failed | The CMOS battery is no longer functional. |
| Replace the battery. |
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CMOS checksum error - defaults loaded | Checksum of CMOS is incorrect. |
| The computer loads the default configuration settings. |
| This error might indicate that CMOS has become corrupt |
| due to a weak CMOS battery. |
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CPU at nnnn | nnnn is the running speed of the microprocessor. |
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Press Esc to skip memory test | Pressing Esc skips the full memory test |
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HARD DISK INSTALL FAILURE | Cannot find or initialize the hard disk drive controller or |
| the drive. |
| Make sure the hard disk drive is correctly installed. |
| If no hard disk drives are installed, make sure the hard |
| disk drive selection in Setup is set to NONE. |
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Keyboard error or no keyboard present | Cannot initialize the keyboard. |
| Make sure the keyboard is properly connected to the |
| computer and that no keys are held pressed during POST. |
| To purposely configure the computer without a keyboard, |
| set the error halt condition in Setup to HALT ON ALL, BUT |
| KEYBOARD. The BIOS then ignores the missing keyboard |
| during POST. |
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Memory Test: | This message displays during a full memory test, counting |
| down the memory areas being tested. |
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Memory test fail | If POST detects an error during memory testing, additional |
| information appears. This information gives specifics |
| about the type and location of the memory error. |
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Press TAB to show POST screen | Pressing the TAB key permits the user to toggle between |
| the default POST display screen and a custom POST |
| display screen. |
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Error: | The BIOS was unable to find a suitable boot device. |
any key when ready | Make sure the boot drive is properly connected to the |
| |
| computer. |
| Make sure you have bootable media. |
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Miscellaneous error messages
Message/Symptom | FRU/Action | |
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Changing display colors | Display/Monitor | |
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Computer will not turn off. See “Hard disk drive boot | 1. | Power switch |
error” on page 49. | 2. | System board |
| ||
| 3. | Riser card, if installed. |
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Chapter 8.