HP t530 Hardware Reference Guide - Page 39

Diagnostics and troubleshooting, LEDs, Wake-on LAN, Advanced > Device Options

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Sometimes there are restrictions on which BIOS versions are allowed to be installed on a platform. If the BIOS that was on the system had restrictions, then only allowable BIOS versions may be used for recovery. Diagnostics and troubleshooting LEDs LED Status Power LED Off When the unit is plugged into the wall socket and the Power LED is off, the unit is powered off. However, the network can trigger a Wake On LAN event in order to perform management functions. Power LED On Displays during boot sequence and while the unit is on. During boot sequence, hardware initialization is processed and startup tests are performed on the following: ● Processor initialization ● Memory detection and initialization ● Video detection and initialization NOTE: If one of the tests fails, the unit will simply stop, but the LED will stay on. If the video test fails, the unit beeps. There are no messages sent to video for any of these failed tests. NOTE: After the video subsystem is initialized, anything that fails will have an error message. NOTE: RJ-45 LEDs are located inside the RJ-45 connector on the top, rear panel of the thin client. The LEDs are visible when the connector is installed. Blinking green indicates network activity, and amber indicates a 100MB speed connection. IDE LED is Off When the unit is powered on and the flash activity light is off, then there is no access to the system flash. IDE LED blinks white Indicates the system is accessing the internal IDE flash. Wake-on LAN Wake-on LAN (WOL) allows a computer to be turned on or resumed from sleep or hibernation state by a network message. You can enable or disable WOL in Computer Setup using the S5 Wake on LAN setting. To enable or disable WOL: 1. Turn on or restart the computer. 2. Press either esc or F10 while the "Press the ESC key for Startup Menu" message is displayed at the bottom of the screen. NOTE: If you do not press esc or F10 at the appropriate time, you must restart the computer and again press esc or F10 when the monitor light turns green to access the utility. 3. If you pressed esc, press F10 to enter Computer Setup. 4. Navigate to Advanced > Device Options. 5. Set S5 Wake on LAN to either enabled or disabled. 6. Press F10 to accept any changes. 7. Select File > Save Changes and Exit. IMPORTANT: The S5 Maximum Power Savings setting can affect wake-on LAN. If you enable this setting, wake-on LAN is disabled. This setting is found in Computer Setup at Power > Hardware Management. Diagnostics and troubleshooting 33

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Sometimes there are restrictions on which BIOS versions are allowed to be installed on a platform. If the BIOS
that was on the system had restrictions, then only allowable BIOS versions may be used for recovery.
Diagnostics and troubleshooting
LEDs
LED
Status
Power LED Off
When the unit is plugged into the wall socket and the Power LED is off, the unit is powered off.
However, the network can trigger a Wake On LAN event in order to perform management functions.
Power LED On
Displays during boot sequence and while the unit is on. During boot sequence, hardware initialization is
processed and startup tests are performed on the following:
●
Processor initialization
●
Memory detection and initialization
●
Video detection and initialization
NOTE:
If one of the tests fails, the unit will simply stop, but the LED will stay on. If the video test fails,
the unit beeps. There are no messages sent to video for any of these failed tests.
NOTE:
After the video subsystem is initialized, anything that fails will have an error message.
NOTE:
RJ-45 LEDs are located inside the RJ-45 connector on the top, rear panel of the thin client. The LEDs are visible when the
connector is installed. Blinking green indicates network activity, and amber indicates a 100MB speed connection.
IDE LED is Off
When the unit is powered on and the flash activity light is off, then there is no access to the system
flash.
IDE LED blinks white
Indicates the system is accessing the internal IDE flash.
Wake-on LAN
Wake-on LAN (WOL) allows a computer to be turned on or resumed from sleep or hibernation state by a
network message. You can enable or disable WOL in Computer Setup using the
S5 Wake on LAN
setting.
To enable or disable WOL:
1.
Turn on or restart the computer.
2.
Press either
esc
or
F10
while the “Press the ESC key for Startup Menu” message is displayed at the
bottom of the screen.
NOTE:
If you do not press
esc
or
F10
at the appropriate time, you must restart the computer and again
press
esc
or
F10
when the monitor light turns green to access the utility.
3.
If you pressed
esc
, press
F10
to enter Computer Setup.
4.
Navigate to
Advanced > Device Options
.
5.
Set
S5 Wake on LAN
to either enabled or disabled.
6.
Press
F10
to accept any changes.
7.
Select
File
>
Save Changes and Exit
.
IMPORTANT:
The
S5 Maximum Power Savings
setting can affect wake-on LAN. If you enable this setting,
wake-on LAN is disabled. This setting is found in Computer Setup at
Power > Hardware Management
.
Diagnostics and troubleshooting
33