Table 7-10 Solving Hardware Installation Problems (continued)
A new device is not recognized as part of the system.
Cause | Solution | |
|
| |
Cable(s) of new external device are loose or power cables are | Ensure that all cables are properly and securely connected and | |
unplugged. | that pins in the cable or connector are not bent down. | |
|
| |
Power switch of new external device is not turned on. | Turn off the computer, turn on the external device, then turn on | |
| the computer to integrate the device with the computer system. | |
|
| |
When the system advised you of changes to the configuration, | Reboot the computer and follow the instructions for accepting | |
you did not accept them. | the changes. | |
|
| |
A plug and play board may not automatically configure when | Use Windows Device Manager to deselect the automatic settings | |
added if the default configuration conflicts with other devices. | for the board and choose a basic configuration that does not | |
| cause a resource conflict. You can also use Computer Setup to | |
| reconfigure or disable devices to resolve the resource conflict. | |
| To access Device Manager in Windows 8, from the Start screen, | |
| type c, select Control Panel from the list of applications, and then | |
| select Device Manager. | |
|
| |
USB ports on the computer are disabled in Computer Setup. | Run the Computer Setup utility and ensure that Device available | |
| is selected for appropriate USB ports under Security > USB | |
| Security. | |
|
|
|
Computer will not start. |
|
|
|
| |
Cause | Solution | |
|
| |
Wrong memory modules were used in the upgrade or memory | 1. Review the documentation that came with the system to | |
modules were installed in the wrong location. |
| determine if you are using the correct memory modules and |
|
| to verify the proper installation. |
|
| NOTE: DIMM1 or XMM1 must always be installed. On all |
|
| computers except the USDT, DIMM1 must be installed |
|
| before DIMM2, and DIMM3 must be installed before DIMM4. |
| 2. | Observe the beeps and LED lights on the front of the |
|
| computer. Beeps and flashing LEDs are codes for specific |
|
| problems. |
| 3. | If you still cannot resolve the issue, contact Customer |
|
| Support. |
|
|
|
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. |
82 Chapter 7 Troubleshooting Without Diagnostics