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Troubleshooting
BIOS Error Messages (continued)
Error Message Explanation
Memory Size Decreased Memory size has decreased since the last boot. If no memory was
removed, then memory may be bad.
Memory Size Increased Memory size has increased since the last boot. If no memory was
added, there may be a problem with the system.
Memory Size Changed Memory size has changed since the last boot. If no memory was
added or removed, then memory may be bad.
No Boot Device Available System did not find a device to boot.
Off Board Parity Error A parity error occurred on an off-board card. This error is followed
by an address.
On Board Parity Error A parity error occurred in onboard memory. This error is followed
by an address.
Parity Error A parity error occurred in onboard memory at an unknown
address.
NVRAM / CMOS / PASSWORD
cleared by Jumper
NVRAM, CMOS, and passwords have been cleared. The system
should be powered down and the jumper removed.
<CTRL_N> Pressed CMOS is ignored and NVRAM is cleared. User must enter Setup.
BIOS POST Beep Codes
The table below lists the POST error beep codes. Prior to system video initialization, the BIOS
uses these beep codes to inform users of error conditions. Please note that not all error
conditions are supported by BIOS beep codes.
Table 7. POST Error Beep Codes
Number of
Beeps
Reason for the beeps and action to take
1, 2, or 3 Memory error. Reseat the memory or replace the DIMMs with known good
modules.
4 – 7 or 9 – 11 Fatal error indicating a possible serious system problem. Remove all add-in
cards and re-start the system. If the error still occurs, contact your system
manufacturer. If the beep codes are not generated after the add-in cards are
removed, insert the cards one at a time, booting the system between each card
addition, until the beeps again occur to reveal the malfunctioning card.
8 Replace or reseat the system video add-in card. If on-board video is bing used,
the server board may be faulty.
In addition to the beep codes above, additional beep codes are provided if an Intel®
Management Module is installed. The Intel Management Modules provide the following
additional beep codes.
Table 8. Error Beep Codes Provided by Intel® Management Modules
Beep Code Reason for the beeps and action to take
1 Control panel CMOS clear has been initiated.
1-5-1-1 Processor failure. Reseat or replace the failed processor.
Intel
®
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