Acer AcerPower Sd, Service Manual

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Chapter 4 63
Error Beep Definition
NOTE: "2" means long beep, "1" means short beep
Beep Code Error Message Description
2-1-2-2 DMA test failure DMA internal register test fail
2-1-1-1 8742 KBC failure KBC self test fail or not installed
2-1-2-1 Refresh failure System DRAM refresh cycle out of spec.
2-1-1-2 Shutdown byte R/W failure Shutdown byte in RTC/CMOS r/w test failure
2-2-2-1 Base 128K memory test failure The first 128KB of base memory r/w test failure
2-2-1-2 Flash ROM BIOS failure The BIOS code in flash ROM is corrupted
Beep Code Warning Message Description
2-1-1 VGA Video buffer error
1-1 Com Port Boot Console does not exist and message displayed to
terminal
Beep Code Warning Message Description
2-2-1-1-1 No Memory or EDO DIMM
2-2 100 MHz DIMM SPD rev. before 1.1 or unavailable
2-2-2-1-1 Mix EDO DIMM w/ SPD and SDRAM DIMM w/ SPD
2-2-2-1-1-1 66MHz SDRAM DIMM in 100MHz system
2-2-2-1 Mix registered DIMM and unregistered DIMM