Crucial M4 CT128M4SSD2 128GB in x220 – modded to 7mm 24

This was a very simple mod, did not require anything, other then 4 new/shorter screws to replace the ones that were longer on the M4, and a bit of electrical tape. Without hte electrical tape, the drive was undetected, it was shorting out by touching the metal top…so there is a reason to the spacer :).

So far battery life has improved over the 320gb 7200rpm drive the x220 came with. I’d say a good 30 minutes over a usage. The battery still needs a bit of burn in though.

[zp src=”m4-mod1.JPG” album=”blog/M4-SSD-Mod/” width=”600″]

EDIT : Thanks to mark for commenting, you can get these screws :
“The screws are M2X3MM part #10124 from”


24 thoughts on “Crucial M4 CT128M4SSD2 128GB in x220 – modded to 7mm

  1. Reply Lee May 28,2011 6:33 am

    can you pleas let me know ,

    if you can test the crystal diskmark 3.0

    and see the speed sequential read

    (picture capture is great)

    i just would know if the X220 is 6GB or 3GB ?


  2. Reply Lee May 28,2011 6:34 am

    Oh, i’ve seen it in another blog of yours 😀 hehe


  3. Reply Vivi The Mage May 28,2011 10:23 am

    Yup, it’s listed on my most current :). If you want another benchy, let me know.

  4. Reply THS Jul 22,2011 9:02 pm

    Will this void the warranty ???

  5. Reply Vivi The Mage Jul 22,2011 11:17 pm

    I would assume no, there was no warranty sticker when I unscrewed mine.

  6. Reply THS Jul 24,2011 2:20 am

    Awesome ! I’ll be getting a X220 with this real soon.

    -Do you put the top cover back on ??

    -Where do I get the new screws ?

    -Can I slip a sheet cut out from anti-static wrap in between instead of tape ? (to avoid getting sticky glue on the chips incase I have to RMA)

    I couldn’t get these answers anywhere else!
    Thanks a lot!

  7. Reply THS Jul 29,2011 7:58 am

    So you just insert it back without the top cover ?

    Does it go in easy ? Any wiggle ?

  8. Reply Debian3 Jul 29,2011 7:48 pm

    Where did you find the new screw?

  9. Reply Vivi The Mage Aug 1,2011 6:41 pm

    I got it from some screws I had from other builds/projects. I cannot tell the exact size/model, sorry! I know some people on the web used some m4 sized screws.

  10. Reply Tony Aug 3,2011 10:19 am

    I am interested to make the same setup. What is the PcMark result on your laptop?


  11. Reply Vivi The Mage Aug 3,2011 10:28 am

    I have not run it, what version of PCMark is free these days?

  12. Reply Tony Aug 3,2011 11:06 am

    I used PCMark Vantage which is free (but ~700Mb!).

    I would be curious to see the impact of the SATA III SSD on performance. They don’t report these things in review sites.

    I hope you have time to run it!

    thanks again.

  13. Reply Tony Aug 3,2011 11:13 am

    For example see the PCMark Vantage results that engadget has here:

    They compare the vaio z with the 2011 MBA and also X220 (with HDD). I think your setup will be even better and cheaper 🙂

  14. Reply Vivi The Mage Aug 3,2011 11:51 am

    Any specific test? I have PCMark Vantage. It’s a 1 and a half hour test with the run all sort of thing, haha.

  15. Reply Tony Aug 3,2011 12:50 pm

    I think you just run one default test “Run Benchmark”. The other tests are for the paid/full version.

    You register first and then you get a key for running it once. All the reviews that I posted above do the same thing.

    I hope you can manage it.

  16. Reply Vivi The Mage Aug 3,2011 12:51 pm

    I got it registered.

    PCMark Vantage Professional 64bit score : 13760

  17. Reply Tony Aug 3,2011 12:57 pm

    Sweet. Faster than the 2,600$ Vaio Z 🙂

    Thanks man!

  18. Reply THS Aug 4,2011 3:16 am

    I got my 128GB M4 !!! Still waiting on the X220 to ship.

    What can I use in place of electrical tape ???

    I don’t want the sticky residue from the tape-glue stuck on the chips / board (in case I have to return it for refund).

    Any ideas ???


  19. Reply Vivi The Mage Aug 4,2011 9:12 am

    Good question, maybe try cutting up a portion of anti static bag, and put it on the top?

  20. Reply the ghost Aug 27,2011 8:30 pm

    Screws can be found at (no really, no fooling)

  21. Reply Mark Jun 5,2012 2:22 pm

    The screws are M2X3MM part #10124 from

  22. Reply Vivi The Mage Jun 5,2012 2:29 pm

    Thanks Mark, I will add this to the post.

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