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dwenfoo88
Paper Tape
Posts: 5
Registered: ‎01-13-2016
Location: St. Nowhere
Views: 24,068
Message 1 of 22

T460 M.2 Spec

What is the size of the M.2 drive in the new T460?  2280 (22mm x 80mm)? 2242 (22mm x 42mm)?

 

What is the interface?  PCI-E 3.0 x4?

dwenfoo88
Paper Tape
Posts: 5
Registered: ‎01-13-2016
Location: St. Nowhere
Views: 23,888
Message 2 of 22

Re: T460 M.2 Spec

Anyone know anything about the specs?  I'm hoping I can squeeze in the standard SATA SSD and a much faster M.2 SSD.

Lenovo Support Partner
Posts: 451
Registered: ‎07-16-2013
Location: SI
Views: 23,873
Message 3 of 22

Re: T460 M.2 Spec

Probably not. If you can wait a bit I can tell you first hand (just waiting for T460 to arrive to us), but things look like this:

 

- u can either use 2.5in SATA SSD OR 2.5in PCIe NVMe SATA Express SSD (only 256GB available)

- maybe u can also use* M.2 SATA (probably type 2242) for M.2 SATA SSD (only few models available, not officially supported by Lenovo, such as Transcend 256GB MTS400 and maybe 512GB MTS400)

 

*that was possible in T450/T550, so I asume it is possible in T460/T560 too

***

Disclaimer: I am not Lenovo employee. While I do work for Lenovo Partner, all my contributions are my personal, non-official and not that of Lenovo or my employer.


sbou
Paper Tape
Posts: 2
Registered: ‎03-31-2016
Location: FR
Views: 23,218
Message 4 of 22

Re: T460 M.2 Spec

Hi,

 

Do you have news on this ?

I want to buy a T460 but have a M.2 (2242) for my system.(Transcend 256GB MTS400 )

 

Stéphane

ibmthink
Bit Torrent
Posts: 638
Registered: ‎10-21-2011
Location: DE
Views: 23,206
Message 5 of 22

Re: T460 M.2 Spec

T460 doesn´t accept any kind of M.2 SSD. T460p accepts 2242 M.2 SSDs, T460s 2280 SSDs.

sbou
Paper Tape
Posts: 2
Registered: ‎03-31-2016
Location: FR
Views: 23,198
Message 6 of 22

Re: T460 M.2 Spec

Hi,

 

Thanks for the response.

 

It's the same for the T450 ? because i have problem with my T420s (70°-80° most of the time).

In france actually impossible to buy a T460p

 

I have 1 ssd msata for system and 1 hdd for data. i think it's the best solution for quick system and secure data.

 

Stéphane

trackpointer
Fanfold Paper
Posts: 16
Registered: ‎02-29-2016
Location: Alameda
Views: 23,180
Message 7 of 22

Re: T460 M.2 Spec

How does one get the T460 BIOS and then Linux to recognize an installed M.2 SSD (Transcend MTS400) installed in the WWAN slot? The BIOS shows a "NVMe" device in the boot list but this may be present even without the M.2 SSD installed. What is the Linux device name? Nothing under /dev/sd*. Any modules to load?

trackpointer
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Location: Alameda
Views: 23,162
Message 8 of 22

Re: T460 M.2 Spec

You say "T460 doesn´t accept any kind of M.2 SSD." However, the T460 HMM https://download.lenovo.com/pccbbs/mobiles_pdf/t460_hmm_en_sp40k04896.pdf (page 25/108) says:

"If the computer is equipped with both a hard disk drive and an M.2 solid-state drive, do not use the M.2 solid-state drive as a bootable device. The M.2 solid-state drive is designed and developed for “cache” function purpose only."

I popped in a M.2 2242 Transcend SSD into a T460. Nothing blew up, but the SSD is being completely ignored.

Of course the above passage may be a sloppy copy-paste job, as hundreds of Lenovo manuals (as reported by Google) contain it.

Greg_B
Paper Tape
Posts: 3
Registered: ‎02-23-2015
Location: USA
Views: 23,060
Message 9 of 22

Re: T460 M.2 Spec

Don't have a T460 here, but the T450 HMM contains the same "cache function purpose only" warning.  I've been using the SanDisk U110 16GB SSD in the T450 as a boot drive, in UEFI/SecureBoot mode, for a year now; it generally works great, but tends to perform poorly during heavy writes (such as when installing OS updates).  My guess is that this SSD just can't sustain the write I/O rate (due to architecture or thermal issues) the way a more robust device might.  Looking at the specs PDF, the IOPS on random 4k writes for the 16GB U110 device is a mere 150, which is more typical of a HDD and is absurdly low for an SSD (the larger U110 devices fare a bit better, but still fall far short of typical specs of today).

trackpointer
Fanfold Paper
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Registered: ‎02-29-2016
Location: Alameda
Views: 23,043
Message 10 of 22

Re: T460 M.2 Spec

Unlike what the T450 may or may not support, the T460 definitely does not support any SSD in the M.2 slot meant for the WWAN. The T460s might behave differently; I don't know.

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