UEFI boot backup
jumper (J13)
System TPM physical
presence switch (SW11)
Clear CMOS jumper (J11)
NMI button
1
2
SW3 switch
block
On
Off
4
8
3
7
2
6
1
5
3
2
1
1
2
3
On
Off
Figure 16. System-board switches, jumpers, and buttons
The following table describes the jumpers on the system board.
Table 1. System board jumpers
Jumper number
Jumper name
Jumper setting
J11
Clear CMOS jumper
• Pins 1 and 2: Normal (default).
• Pins 2 and 3: Clears the real-time clock (RTC)
registry.
J13
UEFI boot backup jumper
• Pins 1 and 2: Normal (default). Loads the
primary server firmware ROM page.
• Pins 2 and 3: Loads the secondary (backup)
server firmware ROM page.
Notes:
• If no jumper is present, the server responds as if the pins are set to the default.
• Changing the position of the UEFI boot backup jumper (J13) from pins 1 and 2 to pins 2 and 3 before the server is
turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is
turned on. This can cause an unpredictable problem.
24
HX1310, HX2310-E, HX3310, HX3310-F Installation and Service Guide
Summary of Contents for HX1310
Page 1: ...HX1310 HX2310 E HX3310 HX3310 F Installation and Service Guide Machine Type 8693 ...
Page 6: ...iv HX1310 HX2310 E HX3310 HX3310 F Installation and Service Guide ...
Page 14: ...xii HX1310 HX2310 E HX3310 HX3310 F Installation and Service Guide ...
Page 984: ...970 HX1310 HX2310 E HX3310 HX3310 F Installation and Service Guide ...
Page 994: ...980 HX1310 HX2310 E HX3310 HX3310 F Installation and Service Guide ...
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