Lenovo ThinkSystem SR635 V3 User Manual page 263

Figure 190. Cable routing for onboard configuration of 4 x 2.5-inch front NVMe drive bays (using 4 x2.5-inch AnyBay
backplane (Gen 5))
Table 31. Mapping between backplane connectors and system board assembly connectors for onboard configuration
From To
NVMe 2-3 and NVMe 0-1 on the front backplane PCIe connector 3 and 4 on the system board assembly
1 1
.
Chapter 6 Internal cable routing
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