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X220 upgrade to 16GB RAM. Tipps

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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Location: Bern, Switzerland

X220 upgrade to 16GB RAM. Tipps

#1 Post by bleda3 » Mon Jan 28, 2019 5:52 pm

Hey there
I have the following specs and I would like to upgrade to 16 GB RAM, as I sometimes use a virtulmachine with windows 10 for some university applications. It's the first time I try to upgrade RAM so help and tips would be very welcome.
* Any suggestion about manufactures for two 8gb RAM-Sticks for the X220?
* Much of use to go for higher Mhz than 13333 as well?
* Is Voltage (1.5V or 1.35V) an important issue?
* Good and cheap sellers? Refurbished is okay. Aliexpress? Fast delivery is not important.

I myself found those sellers
https://www.newegg.com/global/ch-en/Pro ... -_-Product
https://www.compuram.biz/memory/lenovo/ ... -x43ed.htm

Hynix 8GB 2 x 4GB PC3-10600S DDR3 1333 SODIMM Laptop Notebook Memory Kit Lenovo 55Y3717

• Manufacturer: Hynix
• Part Number: HMT351S6CFR8C-H9
• Memory Type: SODIMM
• Capacity: 8GB 2 x 4GB
• Pins: 204 Pin
• Bus Type: PC3-10600 DDR3
• Cycle Time: 1.5ns
• Cas: CL9
• Data Transfer Rate: 1333Mhz
• Memory Clock: 166Mhz
• Rank: Rank 2
• Voltage: 1.5

description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)
product: M471B5273CH0-CH9
vendor: Samsung
physical id: 1
serial: 0049B7C0
slot: ChannelB-DIMM0
size: 4GiB
width: 64 bits
clock: 1333MHz (0.8ns)

description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)
product: HMT351S6CFR8C-H9
vendor: Hynix/Hyundai
physical id: 0
serial: 013E16A2
slot: ChannelA-DIMM0
size: 4GiB
width: 64 bits
clock: 1333MHz (0.8ns)

description: BIOS
vendor: LENOVO
physical id: f
version: 8DET58WW (1.28 )
date: 02/14/2012
size: 128KiB
capacity: 8128KiB

description: CPU
product: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
version: Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz
serial: Not Supported by CPU
slot: CPU
size: 3439MHz
capacity: 3500MHz
width: 64 bits
clock: 100MHz

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Re: X220 upgrade to 16GB RAM. Tipps

#2 Post by MrBurgerKing » Mon Jan 28, 2019 6:38 pm

Lenovo's spec sheet (https://support.lenovo.com/us/en/solutions/pd015812) says the maximum amount of memory you can install is 8gb. It only supports so-dimms up to 4gb.
Edit: Apparently it still works with 16gb anyway
Last edited by MrBurgerKing on Tue Jan 29, 2019 3:33 pm, edited 1 time in total.

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Re: X220 upgrade to 16GB RAM. Tipps

#3 Post by MikalE » Mon Jan 28, 2019 7:25 pm

They said that about the T520 too, but it takes 16 GB and uses all of it.
T500 T9600 2055-BE9
T510 i5 4384-DV7
T510 i7 4349-A64
T520 i7 4242-4UU(CTO)

T520: i7-2760QM(2.40GHz),16GB, 500GB SSD/250GB SSD, 1600x900, 1GB NVIDIA, DVDRW, Smartcard, media card, FPR, Win7 Pro64, XP Pro64 whitelist BIOS, N 6300 AGN, German KB, BT 4.0.

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Re: X220 upgrade to 16GB RAM. Tipps

#4 Post by olex126 » Mon Jan 28, 2019 8:13 pm


Good to go with 16 Gb in the x220.

I have an x220 and an x220T, and both are outfitted with 2 x 8 Gb modules.

As for RAM speed, depends on the BIOS version you're on.

Check out http://x220.mcdonnelltech.com/resources/

(More info on the x220-series than you will ever need!) :banana:


Previous Thinkpads: 701C A22m A30/A31p T23p x2 T30 T41 X31 various 750's 760's & 390's.

DD's & Test Benches: X41T, X60T & X61T's, various T42p-T43p's, x200 x201 x220T x230 T520 W530 T601F LED (X9000/8Gb/250SSD/W7 U)

"Life Is A Journey...Enjoy The Ride!"

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Re: X220 upgrade to 16GB RAM. Tipps

#5 Post by as.nielo » Tue Jan 29, 2019 6:12 am

I'm using two sticks labeled Kingston HX318LS11lBK2/16 8GB 1,35 V. They are clocked at 1866MHz but due to Sandy Bridge specification RAM works at 1333 MHz. Not all BIOSes support these sticks. The early official Lenovo should work, the newer limits the supported RAM specs. There is a modded BIOS linked at http://x220.mcdonnelltech.com/resources/ site, I have tested this before and it works as charm with my sticks. I'm on coreboot now.

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Re: X220 upgrade to 16GB RAM. Tipps

#6 Post by GomJabbar » Tue Jan 29, 2019 10:11 am

Last year I bought from this memory kit from Amazon: Crucial 16GB Kit (8GBx2) DDR3/DDR3L 1866 MT/s (PC3-14900) Unbuffered SODIMM 204-Pin Memory - CT2K102464BF186D and installed this kit in my X220 (bios version 1.26). I works just fine, and runs at full speed (as verified by CPU-Z).

From what I've read, the BIOS versions from 1.28 and backwards run the RAM at full 1866 speed. Some newer modded BIOS versions are reported to work as well. The latest several BIOS versions do not allow a downgrade - at least from version 1.42 and onward.

Scroll down on the following page to find older official BIOS versions for download: https://support.lenovo.com/tw/en/downloads/ds018805

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Re: X220 upgrade to 16GB RAM. Tipps

#7 Post by bleda3 » Tue Jan 29, 2019 10:31 am

thanks olex126 for this very usefull link. thanks as.nielo and gomjabber for the tipps on hardware.
@all: 2x8gb is def possible and higher MHZ with a modded BIOS-Version as well.
pro tip from the vid : have a second HDD with Windows on it, so BIOS upgrade is way easier

I am going to flash the new BIOS this evening as I should have done already way ago after Meltdown and spectre. It removes the hardware "whitelisting" so it's easier to buy ram and it allows higher MHZ.

If anyone still has specific manufacturer tipps, please still let me know.

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