Adaptec 1742A User Manual

Contents

The following table lists the LED flash codes with the associatedfailure descriptions.Flash Code Failure DescriptionLED Remains On Host Adapter Control Processor failure. Terminatorsinoperative, missing or not powered-on or the cardenable has not been asserted after reset.1 flash RAM test failed.2 flashes AIC-6251 SCSI protocol chip verification failed.3 flashes FIFO write/read data path test failed.Continuous flashing EEPROM has not been programmed (AHA-1744 only).If any of the flash codes occur, turn the computer system OFF, re-move the host adapter and inspect it for physical damage. En-sure that the EPROMs are correctly installed and firmly seated,there are no missing or damaged components, there are no brokenwires, and no conductive debris is on the host adapter. If nophysical damage is found, return the AHA-1740A/1742A/1744 forrepair to the dealer or distributor where the host adapter waspurchased.The host adapter is cleaned and inspected and tested using aburn-in period before it is shipped. Exercise caution when han-dling the host adapter and keep it in the protective, conductive,wrapping until you install it. With these simple precautions, youcan avoid most of the host adapter failures and damage can nor-mally be avoided.Problems Detected During InstallationThis section may be useful to correct problems related toinstallation.If the system will not boot from the floppy diskette drive afterinitial hardware installation, the following items should bechecked:Table 7-1. AHA 1740A/1742A/1744 LED Flash Codesadaptec AHA-1740A/1742A/17447-2