Any known problem with Crucial M4 7mm SSD (512GB) on T420s?

[catalinus]

I have a T420s and I now want to change the original 512GB HDD to a 512GB SSD, and Crucial M4 seems to be among the highest-rated 7mm models available at a decent price.

However I want to check if there are any known problems - for instance I have seen some (rather confuse) reports on newegg that M4 might have problems when going to sleep?

[sarbin]

welcome to tpf.

i'm also considering a 7mm m4 512gb ssd. which model # are you looking at? i read the crucial forum regularly as part of my product research. you may wish to visit there. if nothing else, you'll see what folks *don't* like.

[catalinus]

welcome to tpf.

i'm also considering a 7mm m4 512gb ssd. which model # are you looking at? i read the crucial forum regularly as part of my product research. you may wish to visit there. if nothing else, you'll see what folks *don't* like.

Thank you!

Very good idea with the crucial forum!

I am currently looking at all the M4 models in 512GB listed on newegg and most likely I will get this one:

http://www.newegg.com/Product/Product.a ... 6820148535

which seems to be a rather recent addition (0 reviews) and it has a well-regarded SATA-to-USB adapter (+ software, but I am quite familiar with GParted anyway).

Most reviews on that site seem to be on 3-4 other/older M4 models of the (same ?) 512GB, including one that seems to be a little alarmist on a T410.

[bapatterson]

I am using one in my T530 and it works perfectly.

[eyecon82]

I just installed it today...no problems that I know of

You have to make sure you upgrade the firmware to the latest version since the original firmware was known to crash some ssd's

[Jakoob]

Using 128 GB M4 7mm for a year in T500. From first day it wasn't a reliable drive and I enjoyed a lot of random freezes, but with latest firmware 040H and Intel RST 11.7 it seems finally stable...

Anyway I will maybe consider Intel drives as well, I think Lenovo puts them in new ThinkPads...