Note: Among 10 x 2.5" configurations, only 10 x 2.5" NVMe (Gen 4) supports closed loop heat sink. 10 x 
2.5" AnyBay (Gen 4/ Gen 5) and 10 x 2.5" NVMe (Gen 5) do not support it.
Front bays Max. 
Ambi-
ent 
Temp. 
(at sea 
level)
Processor group (A, B, E) Heat 
sink
Fan 
type
•  10 x 2.5" NVMe
•  10 x 2.5" AnyBay
•  10 x 2.5" SAS/SATA
•  8 x 2.5'' SAS/SATA
•  6 x SAS/SATA + 4 x AnyBay
•  6 x SAS/SATA + 2 x AnyBay + 2 x 
NVMe
35°C 
B Perf Std
45°C
B Perf Perf
40°C
A Perf Perf
25°C E (except 9654/9654P processors) CL
note
Perf
30°C E CL
note
Perf
35°C E (9654/9654P/9174F/9554/9554P 
processors only)
CL
note
Perf
25°C E (9654/9654P processors only) Perf Perf
16-EDSFF 30°C
A Perf Perf
•  4 x 2.5'' SAS/SATA
•  4 x 2.5'' NVMe
•  4 x 2.5'' AnyBay
45°C 
B Perf Perf
40°C 
A Perf Perf
30°C  E (except 9654/9654P/9174F processors) CL Perf
25°C  E (except 9654/9654P/9174F/9554/9554P 
processors)
CL Perf
25°C  E (9554/9554P processors) Perf Perf
30°C  E (9174F/9654/9654P processors only) Perf Perf
35°C 
E 
CL Perf
Storage configurations: server models with rear bays
This section provides thermal information for the storage configuration when rear bays (2 x 2.5" SAS/SATA/ 
NVMe (U.2/U.3)) are installed.
Front bays
Max. Ambient 
Temp.
(at sea level)
Processor group
Heat sink
Fan type
•  10 x 2.5" SAS/ 
SATA
•  10 x 2.5" NVMe
•  6 x 2.5" SAS/ 
SATA + 4 x 2.5" 
AnyBay
30°C B Perf Perf
25°C A Perf Perf
25°C
E (9654/9654P 
processors only)
Perf Perf
Notes: 
•  To support rear 2x2.5" SAS/SATA or NVMe (U.2/U.3) drives, the following conditions need to be met:
–  Gen 4 low-profile riser installed in Riser 1
Chapter 5. Hardware replacement procedures 55