Dell EMC PowerEdge R7425 Installation and Service Manual

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Thermal restrictions

Following table lists the configuration required for efficient cooling.

Table 1. Thermal restrictions matrix tableThis tables describes thermal restrictions for the system.
Config number	Storage module	Middle/rear configuration	CPU count	Thermal solution (heat sink)		Shroud and blank
Config number	Storage module	Middle/rear configuration	CPU count	180W/200W CPU	155W/170W and 120W CPU	Fan	Shroud	DIMM blank	CPU blank	Fan blank
1	3.5" x 8	PCIe x 8	1	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x4, 4VKDD	Standard	No	Yes	Yes
		PCIe x 8	2	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x6, 4V1WX	Standard	No	No	No
		GPGPU x 3	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	GPGPU	No	No	No
2a	2.5" x 24	PCIe x 8	2	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x6, 4V1WX	Standard	No	No	No
2a	2.5" x 24	GPGPU x 3	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	GPGPU	No	No	No
2b	2.5"x16 + NVMe x 8	PCIe x 7	2	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x6, 4V1WX	Standard	No	No	No
2b	2.5"x16 + NVMe x 8	GPGPU x 3	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	GPGPU	No	No	No
2d	2.5" x 32	Middle 2.5" x 4 + Rear 2.5" x 4	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	No	Yes, x30 5M8WD*	No	No
3a	3.5" x 12	PCIe x 8	2	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x6, 4V1WX	Standard	No	No	No
3b	3.5" x 18	Middle 3.5" x 4 + Rear 3.5" x 2	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	No	Yes, x30 5M8WD*	No	No
4	NVMe x 24	PCIe x 7	2	2U HSK, 2JYG2	1U STD HSK, GDYH1	STD x6, 4V1WX	Standard	No	No	No
4	NVMe x 24	GPGPU x 3	2	1U HPR HSK, 4CFPC	1U STD HSK, GDYH1	HPR X6, 15G45	GPGPU	No	No	No

Other thermal restrictions

The list below are other thermal restrictions:

Mellanox CX4 and CX5 only support up to 35°C ambient with limited slots 1, 7, and 8