Dell PowerEdge MX740c EMC PowerEdge MX740c Installation and Service Manual - Page 119

System board jumper settings

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Table 13. System board jumpers and connectors (continued) Item Connector Description 2. BP_PWR_CONN Backplane power connector 3. SATA_CONN SATA connector 4. A1, A2,, A3,, A7,, A8,, A9 DIMMS for CPU1 5. CPU1 Processor 1 (blank) 6. A4, A5,, A6,, A10,, A11,, A12 DIMMS For CPU1 7. TPM_MODULE Trusted Platform Module 8. BBU_PWR_CONN BBU power connector 9. BACKPLANE SIGNAL Backplane signal connector 10. FIO Control panel(FIO) connector 11. BATTERY System battery 12. BBU SIGNAL Battery backup unit signal slot 13. AUX 0 AUX 0 cable connector 14. B4, B5,, B6,, B10,, B11,, B12 DIMMS for CPU2 15. MEZZ_A1 Mezzanine card A1 16. CPU2 Processor 2 (blank) 17. PWRD_EN System configuration jumper (enabling or disabling the password settings) 18. NVRAM_CLR System configuration jumper (retaining-/ configuration settings) 19. INTERNAL USB Internal USB 3.0 20. MEZZ_B1 Mezzanine card B1 21. B1, B2,, B3,, B7,, B8,, B9 DIMMS for CPU2 22. AUX1 AUX1 cable connector 23. POWER CONNECTOR Power connector 24. MINI_MEZZ_C1 Mini Mezzanine card C1 25. AUX2 AUX 2 cable connector 26. iDRAC iDRAC module connector 27. BOSS (M.2)/IDSDM BOSS (M.2)/IDSDM card connector System board jumper settings For information on resetting the password jumper to disable a password, see Disabling a forgotten password on page 120. Table 14. System board jumper settings Jumper Setting NVRAM_CLR (default) Description The BIOS configuration settings are retained at system boot. The BIOS configuration settings are cleared at system boot. Jumpers and connectors 119

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Table 13. System board jumpers and connectors (continued)
Item
Connector
Description
2.
BP_PWR_CONN
Backplane power connector
3.
SATA_CONN
SATA connector
4.
A1, A2,, A3,, A7,, A8,, A9
DIMMS for CPU1
5.
CPU1
Processor 1 (blank)
6.
A4, A5,, A6,, A10,, A11,, A12
DIMMS For CPU1
7.
TPM_MODULE
Trusted Platform Module
8.
BBU_PWR_CONN
BBU power connector
9.
BACKPLANE SIGNAL
Backplane signal connector
10.
FIO
Control panel(FIO) connector
11.
BATTERY
System battery
12.
BBU SIGNAL
Battery backup unit signal slot
13.
AUX 0
AUX 0 cable connector
14.
B4, B5,, B6,, B10,, B11,, B12
DIMMS for CPU2
15.
MEZZ_A1
Mezzanine card A1
16.
CPU2
Processor 2 (blank)
17.
PWRD_EN
System configuration jumper (enabling or disabling the
password settings)
18.
NVRAM_CLR
System configuration jumper (retaining-/ configuration
settings)
19.
INTERNAL USB
Internal USB 3.0
20.
MEZZ_B1
Mezzanine card B1
21.
B1, B2,, B3,, B7,, B8,, B9
DIMMS for CPU2
22.
AUX1
AUX1 cable connector
23.
POWER CONNECTOR
Power connector
24.
MINI_MEZZ_C1
Mini Mezzanine card C1
25.
AUX2
AUX 2 cable connector
26.
iDRAC
iDRAC module connector
27.
BOSS (M.2)/IDSDM
BOSS (M.2)/IDSDM card connector
System board jumper settings
For information on resetting the password jumper to disable a password, see
Disabling a forgotten password
on page 120.
Table 14. System board jumper settings
Jumper
Setting
Description
NVRAM_CLR
(default)
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
Jumpers and connectors
119