GB200-NVL4 board connectors – Dual CX8 mezzanine module configuration
The following illustrations show the internal connectors on the system-board assembly for the dual CX8 mezzanine module configuration.
GB200-NVL4 board connectors – Dual CX8 mezzanine module configuration
Figure 1. GB200-NVL4 board connectors – Dual CX8 mezzanine module configuration


| 1 CMOS battery CMOS battery is only installed in the primary GB200-NVL4 board (left-side GB200-NVL4 board). | 8 MCIO x8 connector for E3.S drive |
| 2 HMC module connector | 9 OSFP board sideband cable connector |
| 3 TPM module connector | 10 GB200-NVL4 MCIO x16 C-Link cable connector |
| 4 MCIO x8 connector for E3.S drive | 11 GB200-NVL4 MCIO x4 host board or switch board connector |
| 5 NCSI connector (reserved) | 12 GB200-NVL4 MCIO x8 connector for PCIe adapter |
| 6 GB200-NVL4 12V_STBY power connector | 13 GB200-NVL4 MCIO x8 connector for PCIe adapter |
| 7 Sideband connector | 14 DCSCI connection between primary and secondary GB200-NVL4 boards |
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