Random Access Memory (RAM) is a type of hardware that your computer uses to store information. Adding memory is one of the most cost-effective ways to improve your computer's performance.
Dell™ Branded memory offered in the Memory Selector has gone... Show More
Random Access Memory (RAM) is a type of hardware that your computer uses to store information. Adding memory is one of the most cost-effective ways to improve your computer's performance.
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Why should I buy a Dell Upgrades over a third-party part?
Tested and Verified Tier-1 OEM-Grade Parts
Ensure compatibility with Dell servers, storage and networking.
Ease of Installation
Save time with Dell Upgrades that are shipped as kits with the necessary hardware and firmware.
Secure Supply Chain Focus
Protect system data and integrity with parts sourced from a secure supply chain.
Dell Tech Support and Warranties
Preserve Dell technical support and warranties—which do not support systems with third-party upgrades.
Compatibility
This product is compatible with the following systems:
Precision Workstation R7920 XL
PowerEdge XR2
Precision Workstation T7920 XL
Precision Workstation T5820 XL
PowerEdge T430
Precision Workstation T7820
Precision Workstation T5810
PowerEdge R6415
PowerEdge R730XD
Precision Workstation T5810 XL
PowerEdge R640
PowerEdge C4130
PowerEdge R7425
PowerEdge T640
PowerEdge MX740C
PowerEdge R630
PowerEdge R530
PowerEdge T440
PowerEdge M640 VRTX
Precision Workstation T7920
PowerEdge R740xd2
PowerEdge R940
PowerEdge R440
PowerEdge M640
PowerEdge R430
PowerEdge R940xa
PowerEdge MX840C
PowerEdge FC630
Precision Workstation R7920
PowerEdge C4140
PowerEdge R740
PowerEdge M630
PowerEdge FC640
Precision Workstation T7820 XL
PowerEdge T630
PowerEdge C6420
PowerEdge R840
PowerEdge FC430
PowerEdge FC830
PowerEdge R540
PowerEdge R730
PowerEdge M830
Poweredge R830
PowerEdge R930
PowerEdge R740XD
Precision Workstation T5820
PowerEdge R7415
Memory DIMM Types
With more memory, the faster that data and instructions can be read, written, and performed by the server.
There are three types of memory DIMMS for servers available. These DIMM types cannot be mixed in a single system, you must select the type of DIMM appropriate for your workload at the type of purchase.
Unbuffered DIMM:UDIMM, an unbuffered, low density, low-latency DIMM that doesn't include a register or buffer chip. UDIMMs are generally used in applications requiring the lowest possible latency.
Registered DIMM:RDIMM, a registered DIMM that provides high signal integrity -- performing parity checking to detect improper addresses or commands -- and increased performance for heavy workloads.
Load reduced DIMMs:LRDIMM, uses a buffer to reduce memory loading to a single load on all DDR signals, allowing for greater density.
Memory Tests
Burn-in:Powered stress testing (i.e. increased temperature) to remove weak components.
Component Test:Memory vendor-specific diagnostic tests performed at DRAM component level to ensure functionality.
Module Test:Memory vendor-specific diagnostic tests performed at DIMM level to ensure functionality (with all DRAM components already mounted on DIMM PCB).
Random Access Memory (RAM) is a type of hardware that your computer uses to store information. Adding memory is one of the most cost-effective ways to improve your computer's performance.
Dell™ Branded memory offered in the Memory Selector has gone through rigorous quality assurance and quality control testing to ensure it will work with your specific Dell System so it is fully compatible and supported by Dell. Getting unqualified or generic products from other vendors can cause downtime that can seriously cost your business and put your entire system at risk.
Memory offered now may differ in speed from the original system memory but has been qualified to work in the system. When mixed, the memory will perform at the lowest speed populated or the highest speed allowed by the system.
Tech Specs
General
Capacity
32 GB
Upgrade Type
System specific
OEM Manufacturer Equivalent Part Number
DELL A9781929
Memory
Type
DRAM
Technology
DDR4 SDRAM
Form Factor
DIMM 288-pin
Speed
2666 MHz (PC4-21300)
Data Integrity Check
ECC
Features
Dual rank, registered
Chips Organization
X4
Voltage
1.2 V
Miscellaneous
Pricing Type
Upgrade
Compatibility
This product is compatible with the following systems:
PowerEdge C4130
PowerEdge C4140
PowerEdge C6420
PowerEdge FC430
PowerEdge FC630
PowerEdge FC640
PowerEdge FC830
PowerEdge M630
PowerEdge M640
PowerEdge M640 VRTX
PowerEdge M830
PowerEdge MX740C
PowerEdge MX840C
PowerEdge R430
PowerEdge R440
PowerEdge R530
PowerEdge R540
PowerEdge R630
PowerEdge R640
PowerEdge R6415
PowerEdge R730
PowerEdge R730XD
PowerEdge R740
PowerEdge R740XD
PowerEdge R740xd2
PowerEdge R7415
PowerEdge R7425
Poweredge R830
PowerEdge R840
PowerEdge R930
PowerEdge R940
PowerEdge R940xa
PowerEdge T430
PowerEdge T440
PowerEdge T630
PowerEdge T640
PowerEdge XR2
Precision Workstation 5820 Tower
Precision Workstation 7820 Tower
Precision Workstation 7920 Tower
Precision Workstation R7910
Precision Workstation R7910 XL
Precision Workstation R7920
Precision Workstation R7920 XL
Precision Workstation T5810
Precision Workstation T5810 XL
Precision Workstation T5820XL Tower
Precision Workstation T7810
Precision Workstation T7810 XL
Precision Workstation T7820XL Tower
Precision Workstation T7910
Precision Workstation T7910 XL
Precision Workstation T7920XL Tower
Drivers, Manuals & Support
Dell Support
From drivers and manuals to diagnostic tools and replacement parts, Dell Product Support has you covered!