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58,900 reviews

Dell PowerEdge R640 Compatible Memory / RAM Upgrades

Not your exact model? See all Dell PowerEdge or R Series models, or identify your model with our ScanMyPC App

Model Specifications 260,364 Dell Upgrades Supplied

Make & Model:

Dell PowerEdge R640

Memory Configuration:

3TB Max (24 x 128GB LRDIMM)
768GB Max (24 x 32GB RDIMM)

Installed Memory:

Instantly check how much Memory you currently have installed

Model Guide:

Download Configuration PDF for your Dell PowerEdge

Important Notes:

The Mr Memory upgrades below are 100% Compatible for your Dell.

The maximum supported Memory capacity depends on the CPU installed. Please check your computer manual and your CPU's Memory specifications.

Supported Memory speeds depend on the CPU installed. Please check your computer manual.

IMPORTANT - A mix of RDIMMs and LRDIMMs will not work together.

To get the best performance and speed from your PowerEdge, upgrade to the maximum memory.

We always send matched modules, when you order 2 or more.

Help Me Choose

SCAN YOUR SYSTEM

This Server is compatible with more than one type of memory.
Contact a Server Configuration Specialist for further help.

DDR4 PC4-21300 2666MHz 288-pin LRDIMM ECC Load Reduced

DDR4 PC4-21300 2666MHz 288-pin RDIMM ECC Registered

DDR4 PC4-23400 2933MHz 288-pin RDIMM ECC Registered

DDR4 PC4-25600 3200MHz 288-pin RDIMM ECC Registered

DDR4 PC4-21300 2666MHz 288-pin RDIMM ECC Registered

Product Specifications

Upgrade your computer with DDR4 2666MHz ECC Registered memory - the quickest, easiest way to boost performance and speed and increase reliability! Adding extra memory is one of the most cost-effective ways to make your operating system and applications run faster and smoother for peak performance. Hi, Speed!

All memory is brand new, comes with a Full Lifetime Warranty and is packaged and protected by bespoke Mr Memory Anti-Static shield bags or recyclable plastic packets placed inside a Jiffy bag or cardboard box.

Size

(Inc VAT)

32GB

IN STOCK

BEST SELLER

£55.99 each

£59.99

Save £4.00 Today

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16GB

IN STOCK

£37.80 each

£40.50

Save £2.70 Today

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Benefits of Upgrading Installation Guides Returns & Refunds Delivery Options

Orders placed Monday to Friday after 17:00 (UK time) or on weekends/bank holidays will be processed the next business day.
(subject to stock, order verification and chosen delivery option)

Next Day Delivery Available - See all delivery options on the basket page.

Rated Excellent

58,900 Reviews

TRUSTED
Lifetime Warranty

100%
Compatible

INSTANT
Shipping

UNLIMITED
Support

30 YEARS
and Counting

Benefits of Upgrading your Computer Memory

Upgrading is Easy - Go to the Maximum - Renew your Device

If you can change the batteries in your remote control, you can upgrade your memory too! It really is that simple!

The files and programmes on your device are stored on the Hard Drive or Solid State Drive, not the RAM - so you will not lose anything when replacing modules.

Speed & Peak Performance

Improve start-up time and optimise the speed of your operating system
Maximise all-round efficiency & multitask with ease
Speed up your games and apps, including video and photo editing software
Peak performance for home schooling, streamers, video callers, gamers & online shoppers
Improve the performance of your favourite video streaming platforms

Simple, Quick & Easy

Easy as 1, 2, 3 (Order, Deliver, Install)
Upgrading your computers memory is simple with our easy to follow installation guides & videos
Free support provided by our friendly specialists should you need help
Easy to install - Upgrade your computer in less than 5 minutes
Working from home? Ensure your computer is up to the task with a simple Memory upgrade

Big Savings

Don't waste money on a new machine when you can renew & extend what you have!
Save money on unnecessary installation costs by upgrading yourself
Increasing your computers memory will give you the biggest performance increase for your money
Save hours of lost time waiting for your computer to load
Maximise the value of your computer

Reduce your impact on the Environment

Join 500,000+ Mr Memory customers who saved their computer from a trip to the recycling centre
Renewing your device instead of replacing it reduces e-waste and greenhouse emissions
Help electronics become a more sustainable part of our lives by renewing them
By using your electronic devices for as long as possible, you are saving the planet’s resources
Return your old Memory to us and we will ensure it is responsibly recycled

Working from Home & Hybrid Working

If you work from home or are thinking of doing so in the future you need to have the right tools available to do your job as efficiently as possible. Whether you use your own computer or a company owned device, do not be slowed down by insufficient memory or storage. Upgrading the memory and/or SSD is a simple way to save time when working from home.

Increase home working efficiency and performance
Create a stress free and healthier environment with less distractions
Minimise the impact of a slow connection, and improve the responsiveness of video calls
Easily upgrade your computer at home, and claim on company expenses
Working from home has been shown to improve creativity and give a better home life/work balance
Save time and money on commuting, and benefit from flexible scheduling

Trusted & Reliable Customer Reviews

Dell Compatible / Memory
Upgrades Purchased

Rob Hope - Monday 11th March 2024

Verified order

Show reply

Dell Compatible / Memory
Upgrades Purchased

Great experience

Useful compatibility information on website.

Excellent customer service.

Fast delivery.

Tim - Sunday 10th March 2024

Verified order

Show reply

Dell Compatible / Memory
Upgrades Purchased

Good value and warranty .

Good value and warranty .. delivery excellent

hasselhoff - Wednesday 28th February 2024

Verified order

Show reply

4.9 out of 5 MORE REVIEWS

Trust the Mr Memory Brand

Feel Safe, Feel Secure & Feel Appreciated

We help people to feel safe, happy and secure. You can trust the Mr Memory brand - we will protect your data, save you money and improve the performance of your valued devices, whilst being eco-responsible.

Our specialists provide free support to anyone who needs it - at any stage of the order process. Our communication is fast and our guidance is as technical or as basic as you need it to be.

Fully informed at every stage of the order
100% Safe & Secure website
Fast dispatch - 98% of orders dispatched same day, using eco-friendly packaging
30 years in business
UK company, based in large modern business park for over 15 years
Memory sent in Anti-Static packaging for safe transit
RAM extensively tested prior to shipment
Highest quality products from the best brands in the world
Dedicated & highly trained experts with an average of 10 years experience
30-day credit available to the Public / Private Sector
250,000+ businesses use Mr Memory for their Memory/RAM & SSD upgrades
Our customers trust us with all their Memory/RAM & SSD upgrade requirements
Free environmentally friendly recycling of your old product
We are eco-responsible in everything we do and encourage you to be the same
Follow our cycle of Reduce → Reuse → Recycle
We can communicate via email in multiple languages
Over 150,000 registered online customers
We are compliant with the latest privacy regulations including the UK and EU GDPR
All staff are GDPR trained and certified and we have a dedicated Privacy Officer

Mr Memory are now collecting reviews on Google!

Since November 2021 we are now collecting reviews from our customers on Google
We are expanding our review platforms and we are very excited to see our reviews grow
Each review is read and responded to by one of the team as we really appreciate each one received
Please share your experience with the Google community - review us on Google

Working Towards a Sustainable Future

Mr Memory is tackling climate change as a team with an aim to being carbon neutral by 2025.

Our employees are encouraged to walk, cycle or car share
We encourage our employees to stay healthy, eat more sustainable food and buy locally
We always try to purchase from UK based companies where possible
We hold regular staff meetings where our employees opinions on climate change are heard
We supply appropriate uniform to reduce heating and air-con use
We have waste reduction procedures in place - all of our packaging can be recycled
Our refuse bags are bio-degradable
Our cleaning equipment and products are all eco-friendly
Our printing is limited to essential customer paperwork only
We are in the process of upgrading all of our lighting to energy efficient LED bulbs
When not in use all electrical devices are turned off and we always purchase energy efficient devices
Our energy supplier is working towards using 100% renewable electricity and is a Principal Partner of COP26
All of our suppliers use recyclable packaging, which we reuse where possible
We are constantly reviewing our Sustainability Statement
Our Sustainability Specialist, Zoe Killick, oversees our plans to becoming carbon neutral

Play our educational 50+ HD videos

WATCH 50+ VIDEOS

Module:	x1 (single module only)
Memory Brand:	We supply the best brands in the world so you will only receive brand new premium memory of the highest quality
Compatibility:	100% Guaranteed Compatible with your Dell PowerEdge and All Operating Systems
Product Warranty:	Full Lifetime Warranty
System Warranty:	This upgrade will not invalidate your system warranty
Speed:	2666MHz (PC4-21300)
Technology:	DDR4 SDRAM
Pins:	288-pin, Gold Connectors
Form Factor:	RDIMM (Registered Dual Inline Memory Module)
Data Integrity:	ECC Registered
Ranking:	1R, 2R, 4R
Voltage:	Low - 1.2V
CAS Latency:	You will receive memory with the correct CAS Latency for your model

Dell PowerEdge R640 Compatible Memory / RAM Upgrades

Product Specifications

Installation & Support

Installation is Easy with Fast & Professional Support

Installation

Support

Delivery, Returns & Refunds

Fast Delivery

Fast Returns & Refunds

ServerCare Memory Solutions

Mr Memory cares about your IT Infrastructure

ServerCare Programme

Trust Mr Memory to provide you with:

Benefits of Upgrading your Computer Memory

Upgrading is Easy - Go to the Maximum - Renew your Device

Speed & Peak Performance

Simple, Quick & Easy

Big Savings

Reduce your impact on the Environment

Working from Home & Hybrid Working

Trusted & Reliable Customer Reviews

Ranked No. 1 in 1 Trustpilot Category:

What I ordered arrvived promptly.

Very good

Happy with the quality and service.

They take things seriously

Great Price and service

SUPERB SERVICE

Great experience

Good value and warranty .

Trust the Mr Memory Brand

Feel Safe, Feel Secure & Feel Appreciated

Mr Memory are now collecting reviews on Google!

Working Towards a Sustainable Future

We are eco‑responsible

Play our educational 50+ HD videos

What is a Matched Pair?

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