PowerEdge R940xa - Server DELL - Free user manual and instructions
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| Product Type | Rack Server |
| Brand | Dell |
| Model | PowerEdge R940xa |
| Form Factor | 4U |
| Dimensions (Height x Width x Depth) | 17.78 cm x 43.4 cm x 84.5 cm (7.0 in x 17.09 in x 33.27 in) |
| Weight (Maximum) | 45.9 kg (101.2 lb) |
| Processor Support | 4 x Intel Xeon Scalable Gen 1/Gen 2 |
| Memory Support | 48 x DDR4 RDIMM/LRDIMM, up to 6 TB |
| Storage Drives | Up to 24 x 2.5" SAS/SATA/SSD, internal |
| Power Supply | Dual redundant 2400 W (Platinum) hot-plug |
| Cooling | 8 high-performance fans, hot-plug |
| Network Controllers | 2 x 10 GbE Broadcom 57412, optional |
| Operating System Support | Microsoft Windows Server, Red Hat, SUSE, VMware ESXi |
| Management | iDRAC9 with Lifecycle Controller |
| PCIe Slots | Up to 13 x PCIe 3.0 slots |
| Security Features | TPM 2.0, Secure Boot, iDRAC Access Control |
| Chassis Features | Hot-plug drives, redundant fans/PSUs, tool-less access |
| Repairability | Field replaceable units: drives, PSUs, fans, memory, PCIe cards |
| Recommended Usage | Enterprise virtualization, databases, HPC |
Frequently Asked Questions - PowerEdge R940xa DELL
How do I power on the Dell PowerEdge R940xa server?
Ensure both power supplies are connected to reliable outlets, then press the power button on the front panel. The system will boot and initialize iDRAC and POST.
What is the maximum memory capacity of the R940xa?
The server supports up to 6 TB of DDR4 memory using 48 DIMM slots, with RDIMMs or LRDIMMs.
How can I access the BIOS setup?
Press F2 during the initial boot (POST) to enter System Setup. Alternatively, use iDRAC virtual console.
What RAID controllers are supported?
The R940xa supports Dell PERC H730P, H740P, or H840 controllers for hardware RAID.
How do I update the firmware?
Use Dell Update Package (DUP) via iDRAC or bootable USB. Lifecycle Controller provides an integrated update tool.
What does the front LCD panel display?
It shows system health, service tag, and error codes. Use the menu buttons to navigate diagnostic information.
Can I install a GPU in the R940xa?
Yes, the server supports up to four dual-width GPUs or eight single-width, depending on PCIe slot configuration.
How do I reset the iDRAC password?
Use the iDRAC default login (root/calvin) if not changed. For password reset, see the iDRAC User's Guide or use RACADM commands.
What is the operating temperature range?
The server operates at 10°C to 35°C (50°F to 95°F) with a maximum gradient of 20°C per hour.
How do I troubleshoot a no-POST situation?
Check power LEDs, reseat memory and PCIe cards, clear NVRAM via jumper, and consult diagnostic LEDs on the system board.
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