HP dx5150 Informations techniques télécharger pdf (Page 41)

Service Reference Guide, dx5150 361685-001 3–15

Desktop Management

3.5.5 Before You Partition or Format the Current Bootable Disk

Ensure that MBR Security is disabled before you change partitioning or formatting of the current

bootable disk. Some disk utilities, such as FDISK and FORMAT, attempt to update the MBR. If

MBR Security is enabled when you change partitioning or formatting of the disk, you may

receive error messages from the disk utility or a warning from MBR Security the next time the

computer is turned on or restarted.

To disable MBR Security, complete the following steps:

1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.

2. As soon as the computer is turned on, press and hold the F10 key until you enter Computer

Setup. Press

Enter to bypass the title screen, if necessary.

✎

If you do not press the F10 key at the appropriate time, you must restart the computer and press

and hold the

F10 key again to access the utility.

If you are using a PS/2 keyboard, you may see a Keyboard Error message—disregard it.

3. Select Advanced BIOS Features > MBR Security and press Enter.

4. In the MBR Security Pop-up box, use the down arrow key to select Disabled.

5. Press Enter.

6. Before exiting, on the File menu, click Save and Exit Setup.

3.5.6 Cable Lock Provision

The rear panel of the computer accommodates a cable lock so that you can physically secure the

computer to a work area.

For illustrated instructions, see the Removal and Replacement Chapter for the specific chassis.

3.6 Fault Notification and Recovery

Fault Notification and Recovery features combine innovative hardware and software technology

to prevent the loss of critical data and minimize unplanned downtime.

When a fault occurs, the computer displays a Local Alert message containing a description of the

fault and any recommended actions. You can then view current system health by using the HP

Client Manager Software. If the computer is connected to a network managed by HP Insight

Manager, HP Client Manager Software, or other system management applications, the computer

also sends a fault notice to the network management application.

3.6.1 Surge-Tolerant Power Supply

An integrated surge-tolerant power supply provides greater reliability when the computer is hit

with an unpredictable power surge. This power supply is rated to withstand a power surge of up

to 2000 volts without incurring any system downtime or data loss.

3.6.2 Thermal Sensor

The thermal sensor is a hardware and software feature that tracks the internal temperature of the

computer. This feature displays a warning message when the normal range is exceeded, which

gives you time to take action before internal components are damaged or data is lost.

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HP dx5150 Informations techniques Page 41