Acer Power SC Power SC Service Guide - Page 82

Error Beep Definition Beep Code 2-1-2-2 2-1-1-1 2-1-2-1 2-1-1-2 2-2-2-1 2-2-1-2 Error Message DMA test failure 8742 KBC failure Refresh failure Shutdown byte R/W failure Base 128K memory test failure Flash ROM BIOS failure Description DMA internal register test fail KBC self test fail or not installed System DRAM refresh cycle out of spec. Shutdown byte in RTC/CMOS r/w test failure The first 128KB of base memory r/w test failure The BIOS code in flash ROM is corrupted Beep Code 2-1-1 1-1 Warning Message VGA Com Port Boot Description Video buffer error Console does not exist and message displayed to terminal Beep Code 2-2-1-1-1 2-2 2-2-2-1-1 2-2-2-1-1-1 2-2-2-1 Warning Message Description No Memory or EDO DIMM 100 MHz DIMM SPD rev. before 1.1 or unavailable Mix EDO DIMM w/ SPD and SDRAM DIMM w/ SPD 66MHz SDRAM DIMM in 100MHz system Mix registered DIMM and unregistered DIMM NOTE: "2" means long beep, "1" means short beep 74 Chapter 4