Power indicator codes
Condition
CAUTION:
If two PSUs are installed, both the PSUs must have the same type of label; for
example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations
of PowerEdge servers is not supported, even if the PSUs have the same power rating. This
results in a PSU mismatch condition or failure to turn the system on.
CAUTION:
When correcting a PSU mismatch, replace only the PSU with the blinking
indicator. Swapping the PSU to make a matched pair can result in an error condition and
unexpected system shutdown. To change from a High Output configuration to a Low Output
configuration or vice versa, you must turn off the system.
CAUTION:
If two PSUs are used, they must be of the same type and have the same
maximum output power.
CAUTION:
Combining AC and DC PSUs is not supported and triggers a mismatch.
Locating the Service Tag of your system
You can identify your system using the unique Express Service Code and Service Tag. Pull out the information tag in front of the system to
view the Express Service Code and Service Tag. Alternatively, the information may be on a sticker on the chassis of the system. The mini
Enterprise Service Tag (EST) is found on the back of the system. This information is used by Dell to route support calls to the appropriate
personnel.
Figure 14. Locating Service Tag of your system
1
information tag (top view)
2
information tag (back view)
3
OpenManage Mobile (OMM) label
4
iDRAC MAC address and iDRAC secure password label
5
Service Tag
Dell EMC PowerEdge T640 overview
21
Summary of Contents for PowerEdge T640
Page 23: ...Figure 16 Configuration and layout Dell EMC PowerEdge T640 overview 23 ...
Page 24: ...Figure 17 Electrical overview 24 Dell EMC PowerEdge T640 overview ...
Page 25: ...Figure 18 Memory information Dell EMC PowerEdge T640 overview 25 ...
