I was wondering if both memory slots were easily accessible on the bottom of the unit. I looked at the guide but was a little unsure whether it was one or two under there. I remember years ago they were under the palm rest if not mistaken. I was hoping someone could clarify that for me.

HD Reinstalling the Keyboard/2nd RAM Slot on a Lenovo Thinkpad T420 T410 T400 X220 X200 Edge W. Lenovo Thinkpad T420 Laptop Upgrade - RAM. Lenovo Thinkpad T420s 4171-7fm t420 Laptop Power.
In this guide I'll be disassemble a Lenovo Thinkpad T470s, I will remove the bottom cover in order to upgrade the SSD and RAM memory. Home Lenovo Lenovo Thinkpad T470s Disassembly and RAM, SSD Upgrade Options. Lenovo; Lenovo Thinkpad T470s Disassembly and RAM, SSD Upgrade Options. The WWAN slot of the T470S does not recognize the SSD.

Best answer: Yes, the second-gen Lenovo ThinkPad X1 Extreme includes a full-size SD card reader for SD, SDHC, and SDXC formats. It's capable of taking full advantage of UHS-II SD cards for speedy transfers, and it will also work with UHS-I cards.

Power and durability: Lenovo ThinkPad X1 Extreme (Gen 2) (From $1,476 at Lenovo)
Fast portable storage: Lexar Professional 2000x (From $45 at Amazon)

Compared to a UHS-I SD card reader, UHS-II offers better performance when it comes to transfer rates. This is especially important when working with large video or image files, which certainly could be the case considering the X1 Extreme's powerful internal hardware options.

With a UHS-I card reader, you can expect read speeds up to about 100 MB/s, while a UHS-II card reader tops out at about 300 MB/s. That's three times the speed, meaning you'll wait around a lot less for files to finish transferring.

This also opens up a broader market of SD cards; UHS-I cards will work with a UHS-II card reader, though you won't be able to benefit from the advanced transfer speeds. If you want excellent performance for your removable memory, we recommend checking out something like Lexar's Professional 2000x SD card, which has read speeds up to 300 MB/s. It's available in 32GB, 64GB, and 128GB sizes, with prices starting at about $45.

What other ports does the ThinkPad X1 Extreme have?

On top of an SD card reader capable of handling UHS-II SD cards, the right side of the ThinkPad X1 Extreme includes two USB-A 3.1 (Gen 1) ports, a Kensington lock slot, and an optional Smart Card reader. The left side of the laptop houses the proprietary Lenovo charging port, two Thunderbolt 3 ports, HDMI 2.0, a 3.5mm audio jack, and an input for Lenovo's RJ45 Ethernet extension cable.

With these ports, you should easily be able to connect your external accessories, and there is support for up to four external monitors. Thanks to the SD card reader and 4K display option, the X1 Extreme makes it easy to accomplish specialized work, like editing video and photos.

Plenty of power and ports

Lenovo ThinkPad X1 Extreme

UHS-II SD card reader included

All ThinkPad X1 Extreme models come complete with a UHS-II full-size SD card reader, making it easy to use portable media. This is especially important if you plan on working with photo or video, which the X1 Extreme is capable of handling thanks to relatively powerful internal hardware.

Portable storage

Lexar Professional 2000x

UHS-II SD card in three capacities

If you're looking for an SD card to use with your ThinkPad X1 Extreme, Lexar's Professional 2000x makes a great choice. It hits the UHS-II standard for speedy read and write speeds, and you can grab it in 32GB, 64GB, or 128GB sizes.

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Time to mine

Grab one of these laptops for a satisfying Minecraft experience

Minecraft is one of the best games ever made, no doubt because of its ageless appeal and ability to run on just about any piece of hardware. We've rounded up a bunch of best laptops on which you can enjoy Minecraft.

Lenovo's ThinkPad P52 is a mobile workstation available with impressive performance hardware designed for design and development software. It's a thick laptop with plenty of room for upgrades, and Lenovo made the process for adding RAM, M.2 PCIe solid-state drives (SSD), and a 2.5-inch drive as easy as possible thanks to a quick-access panel on the back of the laptop. If you want to add more RAM to your ThinkPad P52, we have everything you need right here.

Hardware to get the job done

Compatible SODIMM RAM: Crucial DDR4 (From $27 at Amazon)
Error-correcting code (ECC) RAM: Lenovo DDR4 (From $70 at B&H)
Prevent damage: Rosewill anti-static wristband ($6 at Amazon)
All required tools: ORIA PC toolkit ($33 at Amazon)
Mobile workstation: Lenovo ThinkPad P52 (From $1,349 at Lenovo)

How to upgrade the RAM in your Lenovo ThinkPad P52

Note: Before beginning any upgrades on a PC, it's a good idea to back up your data in the unlikely event something should go wrong. You'll also want to ensure you're not working in a static-filled environment, as it can cause damage to a PC's internal hardware. Consider investing in an anti-static wristband to avoid unnecessary damage.

The Lenovo ThinkPad P52 has a total of four SODIMM RAM slots, though only two — which are likely sitting unused if you didn't select at checkout any more than 16GB — are easily accessible through the quick-access panel on the back of the laptop. The other two slots are located between the keyboard and the rest of the chassis. To get to them, you must remove the keyboard and TrackPoint system and disconnect a whole lot of sensitive connectors. It's not an easy process at all, but in most cases, you'll only be adding RAM instead of removing RAM, which is what we focus on here.

The ThinkPad P52 is available with either an Intel Xeon E-2176M, an Intel Core i7-8750H, or an Intel Core i7-8850H vPro processor (CPU), and depending on which you go with, factory RAM options differ. Models with the Xeon CPU are available with error-correcting code (ECC) memory — RAM with an extra chip that corrects mistakes to prevent data corruption — and if you indeed have a model that already contains ECC memory, your best bet is to only add more ECC memory. Lenovo's own ThinkPad ECC DDR4 RAM is what we recommend. You'll pay more for ECC memory, but mixing ECC and non-ECC RAM is not recommended.

If you have one of the Intel Core CPUs in your machine or you have a Xeon configuration without ECC RAM already installed, you can stick with standard SODIMM DDR4 RAM. We recommend Crucial RAM for its competitive price and resilience.

Once you have the upgrade RAM in-hand, back up your data, set up a clean and well-lit workspace, and proceed with the steps below to upgrade the RAM in your ThinkPad P52. Be sure to power off your laptop — you can even remove the modular battery — before removing the back panel.

Unscrew the six fasteners on the quick-access panel using a Philips-head screwdriver. The screws can't be removed completely to ensure none are lost.
Lift up the access panel with a thumb or pry tool. Notice there's a notch along the edge to easily get it up.
Pull up the plastic shield to reveal the first RAM slot. Do not completely remove the plastic shield.
Insert the first RAM module at an angle. Notice that it is keyed and will only fit one way.
Press down on the RAM module until it clicks into place. Notice the two small arms on either side that slide over the edges to secure the module.
Pull up the plastic shield on the second RAM slot. Do not remove the plastic shield.
Insert the second RAM module at an angle. It is also keyed and will only fit one way.
Press down on the RAM module until it clicks into place.
Replace the access panel, lining up the fasteners with the silver holes.
Screw in the six fasteners attached to the access panel.

Lenovo T500 Ram Upgrade

You can now power on your ThinkPad P52 and verify that the RAM you've installed

Lenovo Thinkpad T500 Ram Slot