Cisco CDE465 DIMM Reseating and Replacement Procedure Procedure to remove and replace the System Motherboard Memory DIMMs Modification History Revision Date Originator Comments 1.00 04/04/2016 Scott Parry 1 st Draft 1
Table of contents 1 Overview... 3 2 System Description... 3 2.1 Base System... 3 2.2 Motherboard... 3 3 Procedures... 5 3.1 Prepare to access the CDE465 memory DIMMs... 5 3.1.1 Reseat the CDE465 memory DIMMs... 7 3.1.2 Replace the CDE465 memory DIMMs... 8 2
1 Overview A small number of CDE465 systems have been found to have POST issues when first powered on at customer sites. These systems with a memory issue will hang during POST with the B7, B9 or BF code in the lower right hand side of the system console. When this issue occurs there are two procedures that can be followed at the customer site to attempt to correct this issue that will be covered in this procedure. 2 System Description 2.1 Base System The CDE465 base system Figure1: CDE465 4U chassis 36 3.5 drive bays Redundant Power Supply Unit bays 2.2 Motherboard X9DRD-7Nl4F/Revision 1.02/C6025 chipset Dual Intel E5-2670 v3 16 DIMM sockets On board LSI 3108 dual port SAS3 2 1GB NIC (Integrated Intel i350 Dual port Gigabit Ethernet) Integrated IPMI with one dedicated 1GB NIC 6 (x8) PCI-E 3.0 slots 1 (x16) PCI-E 3.0 slot 5 USB 3.0 ports (2 rear + 2 via header + 1 type A) 4 USB 2.0 ports (2 rear + 2 via header) 10 SATA3 ports (Not used) 3
Figure2 X10DRH-C Motherboard 4
3 Procedures 3.1 Prepare to access the CDE465 memory DIMMs Remove the power supplies, location shown in Figure 3 Figure 3 Important: Before proceeding ensure that you are properly grounded to the chassis using an ESD wrist strap. Remove the four screws anchoring the top cover of the chassis. The located of these screws are shown in Figures 4 and 5. Figure 4 5
Figure 5 Remove the plastic shroud covering the CPUs and memory DIMMs Figure 6 6
3.1.1 Reseat the CDE465 memory DIMMs Locate the 16 Memory DIMMs as shown in Figure 7 Figure 7 For each memory DIMM, locate the two tab for each memory slots as shown in figure 8 Figure 8 7
Press down on both tabs at once to release the memory DIMM as shown is Figure 9 Figure 9 Once the DIMM is released, press it back into the slot until the two tabs lock in place Repeat this for the remaining 15 DIMMs. Reboot the system If the system boots beyond the System Initialization POST screen then reseating the DIMMs has corrected the issue. If the system once again stops at the System Initialization POST screen proceed to the following section 3.1.2 3.1.2 Replace the CDE465 memory DIMMs Locate the 16 Memory DIMMs as shown in Figure 10 Figure 10 8
For each memory DIMM, locate the two tab for each memory slots as shown in figure 11 Figure 11 Press down on both tabs at once to release the memory DIMM as shown is Figure 12 Figure 12 Once the DIMM is released, remove it by grasping the DIMM and pulling it upwards and out of the chassis Place the new DIMM (Cisco ordering code CDE4-MEM-DDR4-16G=) into memory slot and press down until the tabs lock in place Repeat this for the remaining 15 DIMMs. Reboot the system If the system boots beyond the System Initialization POST screen then replacing the DIMMs has corrected the issue. If the system once again stops at the System Initialization POST screen the system will have to be returned for RMA. 9