Power LED flashes red five times, once every second, followed by a two second pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause | Solution | |
|
| |
Memory is installed incorrectly or is bad. | CAUTION: To avoid damage to the DIMMs or the system | |
| board, you must unplug the computer power cord before | |
| attempting to reseat, install, or remove a DIMM module. | |
| 1. | Reseat DIMMs. Power on the system. |
| 2. | Replace DIMMs one at a time to isolate the faulty |
|
| module. |
|
| NOTE: DIMM1 or XMM1 must always be installed. |
|
| DIMM1 must be installed before DIMM2, and DIMM3 |
|
| must be installed before DIMM4 |
| 3. | Replace |
| 4. | Replace the system board. |
|
|
|
Power LED flashes red six times, once every second, followed by a two second pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause | Solution | |
|
| |
Graphics card is not seated properly or is bad, or system | For systems with a graphics card: | |
board is bad. | 1. | Reseat the graphics card. Power on the system. |
| ||
| 2. | Replace the graphics card. |
| 3. | Replace the system board. |
For systems with integrated graphics, replace the system board.
Power LED flashes red ten times, once every second, followed by a two second pause, and the computer beeps ten times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause | Solution | |
|
|
|
Bad option card. | 1. | Check each option card by removing the cards one at |
|
| time (if multiple cards), then power on the system to see |
|
| if fault goes away. |
| 2. | Once bad card is identified, remove and replace bad |
|
| option card. |
| 3. | Replace the system board. |
|
|
|
Solving Network Problems
Some common causes and solutions for network problems are listed in the following table. These guidelines do not discuss the process of debugging the network cabling.
