Table 157. System board jumpers and connectors (continued)
Item Connector Description
40. SL1_CPU2_PA1 PCIe connector 1
41. PWRD_EN and NVRAM_CLR Jumper
42. LFT_CP Left control panel connector
43. A8, A16, A2, A10, A6, A14, A4, A12 DIMMs for CPU 1 channels H, G, F, E
44. CPU 2 Processor 2
45. B8, B16, B2, B10, B6, B14, B4, B12 DIMMs for CPU 2 channels H, G, F, E
46. PWR2_B For Riser 4 GPU power
47. PWR2_A For power cable
48. PSU2_SIG PUCK sideband signal for Riser 4 GPU
49. IO_RISER4 (CPU2) Riser 4
50. SL9_CPU2_PA5 PCIe connector 9
51. BAT_SIG Battery signal connector
System board jumper settings
For information about resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 158. System board jumper settings
Jumper Setting Description
PWRD_EN The BIOS password feature is enabled.
The BIOS password feature is disabled. The BIOS password is
now disabled and you are not allowed to set a new password.
NVRAM_CLR The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
CAUTION: You should be cautious when changing the BIOS settings. The BIOS interface is designed for
advanced users. Any changes in the setting might prevent your system from starting correctly and may even
result in data loss.
Disabling a forgotten password
The software security features of the system include a system password and a setup password. The password jumper enables or
disables password features and clears any password(s) currently in use.
Prerequisites
CAUTION:
Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
316 Jumpers and connectors
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