Table 6-1 Minor problems (continued)
Problem | Cause | Possible Solution |
Workstation powered off automatically and the Power LED flashes red 2 times (once every second), followed by a 2- second pause, and then two simultaneous beeps sounded.
Processor thermal protection is | 1. | Verify that the workstation air vents are not blocked. | |
activated. | 2. | Open the access panel and press the workstation | |
| |||
A fan might be blocked or not |
| power button. | |
turning. | 3. | Verify that the system fan is running. | |
OR | |||
4. | Verify that the processor heatsink fan spins. If the fan | ||
| |||
The processor heatsink is not |
| is not spinning, verify that the heatsink fan cable is | |
properly attached to |
| plugged into the system board connector and that the | |
the processor. |
| heatsink is properly seated. | |
| 5. | Replace the processor heatsink. |
System does not power on, | System cannot power on. | Press and hold the power button for less than four seconds. | ||
and the LEDs on the front of |
| If the hard drive LED turns green, then perform the following | ||
the workstation are not |
| steps. |
| |
flashing. |
| 1. | To find a faulty device, remove all devices one at a time: | |
|
| |||
|
|
| a. | Disconnect AC power to the workstation. |
|
|
| b. | Remove a device. |
|
|
| c. | Reconnect AC power and power on the |
|
|
|
| workstation. |
|
| 2. | Repeat this process until the faulty device is identified. | |
|
|
| Remove the graphics card last. Replace the faulty | |
|
|
| device. | |
|
| 3. | If no faulty device is found, replace the system board. | |
|
| OR |
|
|
|
| 1. | Press and hold the power button for less than four | |
|
|
| seconds. If the hard drive LED does not illuminate, then | |
|
|
| perform the following tasks: | |
|
|
| a. | Verify that the workstation is plugged into a |
|
|
|
| working AC outlet. |
|
|
| b. | Verify that the power button harness is connected |
|
|
|
| to the inline front panel I/O device assembly |
|
|
|
| connector. |
|
| 2. | Verify that the power supply cables are connected to | |
|
|
| the system board. | |
|
| 3. | Verify power supply functionality: | |
|
|
| a. | Disconnect the AC power. |
|
|
| b. | Remove the internal power supply cables from |
|
|
|
| system board (you do not need to remove power |
|
|
|
| supply from chassis). |
|
|
| c. | Reconnect the AC power. |
|
|
|
| ● If the power supply fan spins and the BIST |
|
|
|
| LED illuminates (see Testing power supply |
on page 119), the power supply is good. Replace the system board.
● If the power supply fan does not spin or the LED does not illuminate (see Testing power supply on page 119), replace the power supply.
118 Chapter 6 Diagnostics and troubleshooting | ENWW |
