User`s manual
41MAXDATA PLATINUM 5220 Server
POST Error Beep Codes
The following table lists POST error beep codes. Prior to system Video initialization, BIOS uses these
beep codes to inform users on error conditions.
Table 10. POST Error Beep Codes
Number of Beeps Description
1 Memory refresh timer error
2 Parity error in base memory (first 64 KB 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 11. 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.