4. EDSFF, U.2 and U.3 drives are all NVMe drives, but mixing EDSFF drives with U.2 or U.3 drives in one
RAID array is not supported.
Special notes
1. For the server models with a single type or mixed types of drives, take 10 x 2.5'' AnyBay drives for
instance:
• The installation order of a single type of drives (SAS/SATA/NVMe) should be: front drive bay 0 → 1 → 2
→ 3 → 4 → 5 → 6 → 7 → 8 → 9.
• The installation order of mixed types of drives should be: SAS/SATA installed from front drive bay 0 →
1 → 2..., and NVMe installed from front drive bay 9 → 8 →7 → 6 → 5→ 4 → 3 → 2 → 1 → 0.
2. For the server models with rear drives installed, take 8 x 2.5'' SAS/SATA front drives and 2 x 2.5'' SAS/
SATA rear drives for instance:
Drives can be installed to rear drive bay 16 → 17 first, and then front drive bay 0 → 1 → 2 → 3 → 4 → 5 → 6
→ 7.
3. Onboard connections only support SATA HDDs/SSDs but do not support SAS HDDs.
4. Tri-mode RAID cards support U.3 NVMe SSDs but do not support U.2 NVMe SSDs.
5. When 7mm drives are installed, two PCIe adapters can be installed on the rear at most.
6. When rear 2x2.5 SSDs are installed, only one PCIe adapter can be installed on the rear.
Thermal rules
This topic provides thermal rules for the server.
•
“Typical configurations: sever models with front drive bays only” on page 54
• “Storage configurations: server models with rear bays” on page 55
• “GPU configurations: server models with GPU adapters” on page 56
• “Sever models with PCIe/OCP adapters (≥ 100GB) installed” on page 57
• “Fan locations and supported quantity for different configurations” on page 58
Notes:
• The maximum supported DIMM quantity is 12.
• Direct Attach Cables (DAC) are supported when the bandwidth of PCIe adapter or OCP module is equal to
or more than 100 GB.
• cTDP is short for Configurable Thermal Design Power.
Processor groups are defined as follows:
• Group B: 200 W ≤ cTDP ≤ 240 W
• Group A: 240 W < cTDP ≤ 300 W
• Group E: 320 W ≤ cTDP ≤ 400 W
Heat sink types and fan types in the tables are abbreviated as follows:
• Performance heat sink: Perf
• Closed loop heat sink: CL
• Performance fan: Perf
• Standard fan: Std
Typical configurations: sever models with front drive bays only
This section provides thermal information for server models with front drive bays only.
54
ThinkSystem SR635 V3 User Guide
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