Supermicro 6038R-DE2CR16L User Manual Download

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Chapter 5: Advanced Serverboard Setup

5-15

5-14

UPER

TORAGE

YSTEM 6038R-DE2CR16L User's Manual

5-8 Jumper Settings

Explanation of Jumpers

To modify the operation of the
serverboard, jumpers can be used
to choose between optional settings.
Jumpers create shorts between two
pins to change the function of the con-

nector. Pin 1 is identified with a square

solder pad on the printed circuit board.
See the serverboard layout pages for
jumper locations.

Note:

On a two-pin jumper, "Closed"

means the jumper is on both pins and
"Open" means the jumper is either on
only one pin or completely removed.

Connector

Pins

Jumper

Setting

3 2 1

CMOS Clear

JBT1 is used to clear CMOS (which will also clear any passwords). Instead of pins,
this jumper consists of contact pads to prevent accidentally clearing the contents
of CMOS.

To clear CMOS,

1. First power down the system and unplug the power cord(s).

2. With the power disconnected, short the CMOS pads with a metal object such

as a small screwdriver.

3. Remove the screwdriver (or shorting device).

4. Reconnect the power cord(s) and power on the system.

Note:

Do not use the PW_ON connector to clear CMOS.

LAN1/2 Enable/Disable

Change the setting of jumper JPL1 to
enable or disable the LAN1 and LAN2
Ethernets ports. See the table on the
right for jumper settings. The default
setting is enabled.

LAN1/2 Enable/Disable

Jumper Settings (JPL1)

Jumper Setting Definition

Pins 1-2

Enabled

Pins 2-3

Disabled

Watch Dog Enable/Disable

Jumper JWD controls the Watch Dog
function. Watch Dog is a system moni-
tor that can reboot the system when a
software application hangs. Jumping
pins 1-2 will cause WD to reset the
system if an application hangs. Jumping
pins 2-3 will generate a non-maskable
interrupt signal for the application that
hangs. See the table on the right for
jumper settings. Watch Dog must also
be enabled in BIOS.

Note:

When enabled, the user needs to

write their own application software in
order to disable the Watch Dog Timer.

Watch Dog

Jumper Settings

Jumper Setting Definition

Pins 1-2

Reset

Pins 2-3

NMI

Open

Disabled

ME Mode Select

Jumper Settings

Jumper Setting Definition

Pins 1-2

Normal (Default)

Pins 2-3

Manufacture Mode

Manufacture Mode

JPME1 allows the user to flash the sys

tem firmware from a host server. Jump
pins 2-3 to bypass SPI flash security,

and force ME into Recovery mode in
order to use recovery jumpers. See the
table on the right for jumper settings.

VGA Enable

Jumper JPG1 allows the user to enable
the onboard VGA connector. The default
setting is on pins 1-2 to enable the con-
nection. See the table on the right for
jumper settings.

VGA Enable

Jumper Settings

Jumper Setting Definition

Pins 1-2

Enabled (Default)

Pins 2-3

Disabled

PCI-E Switch Enable

Close pins 1-2 of JPX1 to enable the
onboard PCI-E switch on the mother-
board. See the table on the right for
jumper settings.

PCI-E Switch Enable

Jumper Settings

Jumper Setting Definition