Lenovo Thinkpad X240 Ram Slots

Lenovo ThinkPad X240 4th Gen Intel Core i3-4010U (3MB Cache, 1.70GHz) overview and full product specs on CNET. The X240 long battery life laptop is the thinnest and lightest ThinkPad laptop we offer. Weighing in at less than 3 lbs and measuring 0.8 inches at its thickest point, the X240 is ultraportable — without sacrificing anything in terms of laptop battery life, ports, connectivity, or durability. Award-Winning Keyboard Further Enhanced for Windows 8. Sell x240 and buy one of these notebooks many are available up to i7 and two memory slots. Even the newest x series is still 1 slot. Best thing for 12.5' notebooks are with my preferred choices on M.2 slots over mPCIe. HP EliteBook 820 G3 skylake 12.5' 2x memory slots DDR4, M.2 NVMe-SSD OR SATA (requires a 2.5' caddy). So, if the motherboard has 2 RAM slots, you can install 2x8GB memory modules for a total of 16GB. The X240 only has one memory slot and as such is limited to a total of 8GB memory. I installed my 16GB module from my T450s in my (ex-)work X240, and it refused to boot. New RAM for Lenovo X240. Does this Thinkpad really have only one RAM slot? Or is there another one on the back of the board (i.e. Under the keyboard)?

Lenovo Thinkpad X240 Ram Slots Price
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ThinkPad X240

This page gives an overview of the ThinkPad X240 (machine types 20AL and 20AM).

Features

Dimensions:

305.5 mm x 208.12 mm x 20.3 mm
Weight: 1.36 kg

Features:

One of the following Haswell processors (all 15W TDP ultra low voltage):
- Intel Core i7-4600U (2.1 GHz / 3.3 GHz Turbo, 2 cores, HyperThreading, 4MB cache)
- Intel Core i5-4300U (1.9 GHz / 2.9 GHz Turbo, 2 cores, HyperThreading, 3MB cache)
- Intel Core i5-4200U (1.6 GHz / 2.6 GHz Turbo, 2 cores, HyperThreading, 3MB cache)
- Intel Core i3-4010U [1.7 GHz, 2 cores, HyperThreading, 3MB cache)

Intel HD4400 Graphics integrated into CPU
Up to 8GB of RAM (PC3-12800 DDR3L SDRAM 1600MHz SODIMM) in a single socket

One of the following TFT displays:
- 12.5' HD (1366 x 768)
- 12.5' HD IPS (1366 x 768)
- 12.5' HD IPS Touch (1366 x 768)
- 12.5' FHD IPS (1920 x 1080)
- 12.5' FHD IPS Touch (1920 x 1080)

2.5' × 7mm hard drive bay with one of the following hard drives:
- HD
  - 320GB (7200 rpm) OPAL
  - 1TB (5400 rpm)
  - 500GB (7200 rpm)
- SSD
  - 128GB / 512GB SSD SATA3
  - Intel® 180GB SSD SATA3
  - 256GB SSD eDrive (OPAL 2.0)
M.2 slot with, optionally, one of the following:
- 16GB SSD (SATA 42mm M.2 NGFF, type 2242)
- Ericsson N5321 WWAN 'Integrated Mobile Broadband' -
- Gobi 5000 (Sierra Wireless EM7355) WWAN 'Integrated Mobile Broadband'
Display connectors
- Mini DisplayPort port with audio
- VGA port
3.5mm Headphone+Mic combo jack
2 x USB 3.0 ports, one of which is 'Always on' for power
4-in-1 SD card reader (SD / SDHC / SDXC / MMC slot)
Smart card reader (optional)
Ethernet: Intel® 82577LM Gigabit (Hanksville)
Wireless, one of the following:
- Intel Dual Band Wireless-AC 7260 (2x2, 802.11ac/a/b/g/n, BlueTooth 4.0)
- Intel Dual Band Wireless-N 7260 (2x2, 802.11abgn, BlueTooth 4.0)
NFC Transmitter
720p HD Integrated camera
Batteries:
- Internal (front) battery: 23.2Whr 3 cell Li-Polymer (optional)
- External (rear) battery: one of
  - 23.2Wh 3 cell Li-Polymer (Type 68)
  - 72Wh 6 cell Li-Ion (Type 68+)
- External battery can be swapped while running on the internal battery ('Power Bridge')
Kensington lock
Integrated Fingerprint Reader (optional)
VGA connector
Compatible docking stations:

RAM upgradability

This model has a single SODIMM socket, which supports up to 8GB of RAM (PC3-12800 DDR3L SDRAM 1600MHz SODIMM).

The CPU does not support more than 8GB of RAM per SODIMM module. In particular, Linux and Windows fails to boot, and MemTest86+ crashes, when using a 16GB SO-DIMM module, model IMM2G64D3LSOD8AG-B15E from Intelligent Memory (which does work in a ThinkPad X250).

Disassembly

Any internal component replacement or upgrade (including hard disk and expansion cards) requires opening the back cover. Keyboard replacement requires full assembly and disassembly of the system board, and fresh thermal paste for the CPU heatsink.

Opening the case involves two stages:

Opening a handful of screws (these have tiny retainer rings made of transparent plastic; be careful not to drop them when removing the back cover).
Carefully prying apart dozens of little fragile plastic latches. This requires a plastic case opening tool to avoid damage (a metal screwdriver will nick and scratch the plastic).

Key mapping

This model has a 6-row keyboard, where the F1 through F12 share the same top-row physical keys with special functions keys (volume, brightness, etc.). By default, the top-row keys invoke the special functions, and require Fn keypress to invoke the usual F1 through F12 functions. To switch the role and have the top-row keys default to F1 through F12, enable Fn-Lock mode (by pressing Fn+Esc).

Moreover, End and Insert share the same physical key. When Fn-Lock is activated, the key default to Insert, and End is invoked as Fn+Insert, which many users find inconvenient. To switch the End and Insert functions, in modern Linux distribution, add the following in a new file /usr/lib/udev/hwdb.d/61-ThinkPad-X240-keyboard.hwdb:

Then run:# udevadm hwdb --update

(The keyboard:... line matches /sys/devices/virtual/dmi/id/modalias, and the hex scancodes are found using # evtest /dev/input/by-path/platform-i8042-serio-0-event-kbd . )

Resources

Resources (by Lenovo)

Pages in category 'X240'