Table 20 Configuration-based ambient temperature restrictions (continued)
R840 configurations
Backplane
24 x 2.5 inch SAS/
SATA (Expander)
24 x 2.5-inch NVMe
(Expander)
Intel Xeon Gold 6148
150 W
24
C35
C35
Intel Xeon Gold 6142
150 W
20
C35
C35
Intel Xeon Gold 6136
150W
16
C35
C35
Intel Xeon Platinum
8158
150 W
12
C35
C35
Intel Xeon Gold 6152
140 W
12
C35
C35
Intel Xeon Gold 6140
140 W
22
C35
C35
Intel Xeon Gold 6132
140 W
18
C35
C35
Intel Xeon Gold 6138
125 W
20
C35
C35
Intel Xeon Gold 6130
125 W
14
C35
C35
Intel Xeon Platinum 8153 125 W
20
C35
C35
Intel Xeon Gold 6126
125 W
16
C35
C35
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any damages to the IT equipment and/or, or both failure from
particulates and gaseous contamination. If the levels of particulates or gaseous pollution exceed the specified
limitations and result in equipment damage or failure, you must rectify the environmental conditions. Remediation of
environmental conditions is the responsibility of the customer.
Air filtration specification: Data center air filtration as defined by ISO Class 8 per ISO 14644-1 should have a 95% upper
confidence limit. Note: This condition applies only to data center environments. Air filtration requirements do not apply
to IT equipment designed to be used outside a data center, in environments such as an office or factory floor. Note: Air
entering the data center must have MERV11 or MERV13 filtration. Conductive dust specification: Air must be free of
conductive dust, zinc whiskers, or other conductive particles. Note: This condition applies to data center and nondata
center environments. Corrosive dust specification: Air must be free of corrosive dust. Residual dust present in the air
must have a deliquescent point less than 60% relative humidity. Note: This condition applies to data center and non-
data center environments.
Table 21 Particulate contamination specifications
Particulate contamination
Specifications
Air Filtration
Data center air filtration as defined by ISO Class 8 per ISO
14644-1 with a 95% upper confidence limit.
Note:
This condition applies to data center environments
only. Air filtration requirements do not apply to IT equipment
designed to be used outside a data center, in environments
such as an office or factory floor.
Note:
Air entering the data center must have MERV11 or
MERV13 filtration.
Technical specifications
28
R840xd Owner's Guide
