Figure 19. Location of the switches, jumpers, and buttons on the system board
The following table describes the jumpers on the system board.
Table 3. Jumpers definition
Jumper name
Description
Clear CMOS jumper
• Pins 1 and 2: Keep CMOS data (default)
• Pins 2 and 3: Clear CMOS data
Low security jumper
(JP12)
• Pins 1 and 2: Low security asserted
• Pins 2 and 3: Low security not asserted (default)
UEFI boot backup
jumper (JP16)
• Pins 1 and 2: Normal (default). Loads the primary server firmware ROM page.
• Pins 2 and 3: Boot from backup. Loads the secondary (backup) server firmware ROM
page.
Notes:
1. If no jumper is present, the server responds as if the pins are set to the default.
2. Changing the position of the UEFI boot backup jumper 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.
The following table describes the functions of the SW1 switch block on the system board.
28
Lenovo System x3250 M5Installation and Service Guide
Содержание System x3250 M5
Страница 1: ...Lenovo System x3250 M5 Installation and Service Guide Machine Type Type 5458 ...
Страница 6: ...iv Lenovo System x3250 M5Installation and Service Guide ...
Страница 36: ...22 Lenovo System x3250 M5Installation and Service Guide ...
Страница 98: ...84 Lenovo System x3250 M5Installation and Service Guide ...
Страница 122: ...108 Lenovo System x3250 M5Installation and Service Guide ...
Страница 162: ...Figure 84 Server components 148 Lenovo System x3250 M5Installation and Service Guide ...
Страница 546: ...532 Lenovo System x3250 M5Installation and Service Guide ...
Страница 722: ...708 Lenovo System x3250 M5Installation and Service Guide ...
Страница 738: ...724 Lenovo System x3250 M5Installation and Service Guide ...
Страница 739: ......
Страница 740: ......