Thermal rules

This topic provides thermal rules for the server.

• Server models with front drive bays only

• Server models with middle/rear drive bays

• Server models with GPUs

Server models with front drive bays only

This section provides thermal information for server models with front drive bays only.

Max.Temp.: Maximum ambient temperature at sea level; S: standard; P: performance

Front drive bays	Max. Temp.	CPU TDP (watts)	Heat sink	Air baffle	Fan type	Max. DIMM Qty.note
8 x 2.5" 16 x 2.5" 8 x 3.5"	35°C	<= 250	2U (S)	S	S	32
	35°C	270 <= TDP <= 330	T-shape (P)	S	P	32
	30°C	350	T-shape (P)	S	P	32
24 x 2.5"	30°C	<= 205	2U (S)	S	S	32
	30°C	205 < TDP <= 250	2U (S)	S	P	32
	30°C	270 <= TDP <= 330	T-shape (P)	S	P	32
	25°C	350	T-shape (P)	S	P	32
12 x 3.5"	30°C	<= 205	2U (S)	S	S	32
	30°C	205 < TDP <= 250	2U (S)	S	P	32
	30°C	270 <= TDP <= 330	T-shape (P)	S	P	32
	25°C	350	T-shape (P)	S	P	32

Note

The RDIMM supporting has the following conditions:

• When the capacity of each RDIMM is less than or equal to 64 GB, standard fans are used.

• When the capacity of each RDIMM is equal to or greater than 128 GB, performance fans are used.

• When the capacity of each RDIMM is 256 GB, the ambient temperature must be limited to 30°C or lower.

Server models with middle/rear drive bays

This section provides thermal information for server models with middle or rear drive bays.

Max.Temp.: Maximum ambient temperature at sea level; S/S: SAS/SATA; Any: AnyBay; S: standard; P: performance; NA: none

Front drive bays	Middle drive bays	Rear drive bays	Max. Temp.	CPU TDP (watts)	Heat sink	Air baffle	Fan type	Max. DIMM Qty.
24 x 2.5"	NA	4 x 2.5" S/S 2 x 3.5" S/S	30°C	<= 250	2U (S)	S	P	32
			25°C	250 < TDP <= 270	T-shape (P)	S	P	32
	8 x 2.5" Any	NA	30°C	<= 250	T-shape (P)	NA	P	32
			25°C	250 < TDP <= 270	T-shape (P)	NA	P	32
	8 x 2.5" S/S	4 x 2.5" S/S 8 x 2.5" S/S	30°C	<= 250	T-shape (P)	NA	P	32
			25°C	250 < TDP <= 270	T-shape (P)	NA	P	32
12 x 3.5"	NA	2 x 3.5" S/S 4 x 3.5" S/S 4 x 2.5" S/S	30°C	<= 250	2U (S)	S	P	32
			25°C	250 < TDP <= 270	T-shape (P)	S	P	32
	8 x 2.5" Any	NA	30°C	<= 250	T-shape (P)	NA	P	32
			25°C	250 < TDP <= 270	T-shape (P)	NA	P	32
	4 x 3.5" S/S	4 x 3.5" S/S 4 x 2.5" S/S	30°C	<= 250	T-shape (P)	NA	P	32
			25°C	250 < TDP <= 270	T-shape (P)	NA	P	32

Server models with GPUs

This section provides thermal information for server models with GPUs.

• Single-wide GPU: T1000, T400, A2

• Double-wide GPU: RTX A2000, RTXA4500, RTXA6000, A30, A16, A100, A40, H100

Max.Temp.: Maximum ambient temperature at sea level; SW: single-wide; DW: double-wide; S: standard; P: performance

Front drive bays	Max. Temp.	CPU TDP (watts)	Heat sink	Air baffle	Fan type	Max. GPU Qty.		Max. DIMM Qty.
						SW1	DW
8 x 2.5"	30°C	<= 250	2U (S)	S	P	8		32
	30°C	270 <= TDP <= 350	T-shape (P)	S	P	8		32
	30°C	<= 350	T-shape (P)	GPU	P		3	32
8 x 3.5" 16 x 2.5"	30°C	<= 250	2U (S)	S	P	8		32
	30°C	270 <= TDP <= 300	T-shape (P)	S	P	8		32
	25°C	300 < TDP <= 350	T-shape (P)	S	P	8		32
	30°C	250 <= TDP <= 300	T-shape (P)	GPU	P		32	32
	25°C	300 < TDP <= 350	T-shape (P)	GPU	P		3	32
24 x 2.5"3	25°C	<= 250	2U (S)	S	P	6		32
	25°C	270 <= TDP <= 350	T-shape (P)	S	P	6		32
	25°C	250 <= TDP <= 350	T-shape (P)	GPU	P		2	32

Note

1. For T400 and T1000, only a maximum of six single-wide GPU adapters are supported.

2. For the chassis with 16 x 2.5-inch front drives, a maximum of two A40 or H100 GPU adapters are supported in PCIe slot 2 and slot 5 when the ambient temperature is 30°C.

3. A40 is not supported by the chassis with 24 x 2.5-inch front drives.