Adaptec AHA-1740A Problems Detected During Installation, AHA 1740A/1742A/1744 LED Flash Codes

adaptec AHA-1740A/1742A/1744

The following table lists the LED flash codes with the associated failure descriptions.

Table 7-1. AHA 1740A/1742A/1744 LED Flash Codes

Flash Code	Failure Description
LED Remains On	Host Adapter Control Processor failure. Terminators
	inoperative, missing or not powered-on or the card
	enable 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 broken wires, and no conductive debris is on the host adapter. If no physical damage is found, return the AHA-1740A/1742A/1744 for repair to the dealer or distributor where the host adapter was purchased.

The host adapter is cleaned and inspected and tested using a burn-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, you can avoid most of the host adapter failures and damage can nor- mally be avoided.

Problems Detected During Installation

This section may be useful to correct problems related to installation.

If the system will not boot from the floppy diskette drive after initial hardware installation, the following items should be checked:

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