This video covers how to replace a faulted memory module in a Unity 480/F, 680/F, and 880/F disk processor enclosure (DPE).
In this video, we will cover the process of replacing a faulted dual inline memory module or DIMM in the Unity systems shown on screen. Before you begin: Ensure that you always wear proper electrostatic discharge or ESD protection when working inside the system. First, verify the location of the faulted DIMM.
From the enclosures page, you can locate the faulted DIMM. The faulted part is marked in orange in the enclosure view. Make a note of which SP the faulted part is in. Next, place the SP into service mode. The SP fault LED should be alternating amber and blue when the system is in service mode. Now you’re ready to replace the faulted DIMM.
To do this, remove the SP assembly from the enclosure. Make sure you remove the SP that you identified earlier, and do not remove an SP while the Unsafe to remove LED is lit. Before you remove the SP, first remove the power cord, then label and disconnect any other cables from the network ports.
Do not remove the cables from the other SP. Pull the orange release trigger while gently pulling in on the SP assembly. Use the release handle to pull the SP out of the enclosure. Place the SP on a flat surface with the top facing up. Wait until all LEDs are off to make sure that the SP is fully powered off. This can take up to three minutes. Push down on the two blue release buttons and slide the top cover towards the rear of the assembly.
Then remove the top cover and set it aside. Locate the faulted DIMM in the SP. Depress the white or black retaining tabs downwards to free the DIMM from its slot. Now, touching only the outside edges of the replacement DIMM, align the DIMM with the connector. Firmly push the carrier into the connector until you hear a snap and see that the connector latches click into place. You’re all done replacing the DIMM.
Align the top cover with the slots on the sides of the assembly. Pull the top cover forward about a half an inch to secure it in place. Align the SP with the enclosure and slide the rest of the SP back into the chassis. Reconnect all of the back end cables you removed earlier, and then, reconnect the power cable. Wait about 10 to 15 minutes after reinserting the SP into the system to let it fully boot back into service mode.
Then, return to Unisphere and reboot the SP into normal mode. It can take up to 20 minutes for the system to reboot. You should also make sure your new DIMM is recognized by the system and operating correctly from Unisphere. To do this, on the enclosure summary page, confirm that the part’s status is OK. This complete the process.
For more information on adding or replacing other components of the Dell EMC Unity system, go to the Dell EMC Unity Technical documentation page using the link in the description for this video.
