Intel SE7520BD2

Troubleshooting
Intel® Server Board SE7520BD2
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POST Error Beep Codes
The following table lists the POST error beep codes. Prior to system video initialization, the BIOS
uses these beep codes to inform users of error conditions.
Table 6. POST Error Beep Codes
Number of Beeps Description
1 Memory refresh timer error
2 Parity error in base memory (first 64KB block)
3 Base memory read / write test error
4 Motherboard timer not operational
5 Processor error
6 8042 Gate A20 test error (cannot switch to protected mode)
7 General exception error (processor exception error)
8 Display memory error (system video adapter)
9 ROM checksum error
10 CMOS shutdown register read/write error
11 Cache memory test failed
Troubleshooting BIOS Beep Codes
Table 7. Troubleshooting BIOS Beep Codes
Number of Beeps Troubleshooting Action
1, 2 or 3 Reseat the memory, or replace with known good modules.
4-7, 9-11 Fatal error indicating a serious problem with the system. Consult your system manufacturer.
Before declaring the motherboard beyond all hope, eliminate the possibility of interference by
a malfunctioning add-in card. Remove all expansion cards cards except the video adapter.
- If beep codes are generated even when all other expansion cards are absent, consult your
system manufacturer’s technical support.
- If beep codes are not generated when all other expansion cards are absent, one of the
add-in cards is causing the malfunction. Insert the cards back into the system one at a time
until the problem happens again. This will reveal the malfunctioning add-in card.
8 If the system video adapter is an add-in card, replace or reseat the video adapter. If the video
adapter is an integrated part of the system board, the board may be faulty.
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