03-16-2016 11:39 PM
Hey, I've had about a week to work and play with the Thinkpad P40 Yoga. If you have any questions about the device that aren't in my review, go ahead and post them in this thread.
03-17-2016 12:06 AM - edited 03-17-2016 12:07 AM
Very nice review! Thanks for sharing!!
03-17-2016 10:10 AM
Great review! I just received mine yesterday, and I plan to start using it as a do everything replacement for my W520. I really need more storage than 500GB but I got tired of waiting for Lenovo to offer a 1TB SSD. I figured I could add an mSATA drive later, and have had my eyes on a Samsung 1TB mSATA. However, I cannot find any info on an mSATA socket for the P40. On the W520, the card went under the keyboard in the space reserved for the wireless WAN card, but it seems that the P40 just uses a SIM card like a cell phone. Am I missing something, or is there just not enough space?
03-17-2016 10:18 PM - edited 03-17-2016 10:19 PM
The P40 Spec Sheet says "WWAN Sierra EM7455 - 3G/4G LTE"
My understanding, from Sierra's website, is that if it uses the EM designation, that it will be the M.2 formfactor.
As for M.2 vs. mSata drive compatibilty, adapters, and space constraints with the P40, I'm not sure. Looking at the pictures of the various form factors doesn't make me hopeful. The picture of a Samsung 850 EVO 1 TB mSATA 2-Inch SSD looks more like an MC7455 as opposed to the EM7455 type allegedly housed in the P40.
I'm not an expert on such things by any stretch, so double check my findings.
03-17-2016 10:54 PM - edited 03-17-2016 10:56 PM
If I may add a bit to Arthur's reply.
Looking at the P40 hardware manual: https://download.lenovo.com/pccbbs/mobiles_pdf/p40_yoga14_mt20fy_yoga460_hmm_en_sp40j47499_01.pdf
Pages 82-85 show that the same slot supports either an acceptable WWAN card or an m.2 SSD. Please note that it's not the same as the mSATA format SSDs supported in the T/W/X *20 series machines. It *may* be a 22x42mm format m.2 card, but it's not clear, nor specified. It does not look like the 22x80mm drives used in a number of other ThinkPads, though. The exploded-view parts listing on page 53 also supports that the slot supports either WWAN or m.2 SSD (item #5). All indications from the manual are that WWAN and m.2 SSD configurations are mutually exclusive.
Finally, looking at the P40 FRU BOM parts listing:
there's no information or hint about what size or capacity m.2 SSD might fit the slot.
Hope this helps your research a bit.
03-29-2016 02:16 PM
It is an M.2 "half-length" form factor, which is 42mm I believe. I was hoping it was an 80mm length but once I opened the case I could see that there was no way. While there is a good selection of 80mm M.2 drives with up to 500GB capacity, the largest 42mm I could find was a 256GB ADATA Premier SP600NS34, for $90. It fits perfect, and I'm using it as my boot drive.
The hardest part was getting the keyboard off. I went by the instructions in the Lenovo P40 repair manual that claimed to push down and up to remove, like my previous Think Pads. I would still be trying if I hadn't given up and found a better method online. When the indicated screws are removed use a plastic pry tool to break it loose from the back end then work around until all the plastic snaps have come loose. Same for removing the battery cover.
It is a good solution for now, but once someone makes a 500GB half-length card I will swap it out for more space.
03-29-2016 02:23 PM
Thanks for replying. I am about to purchase a P40 and there is a 500GB option which is why I assumed that this would be a 2.5" drive as I haven't seen any 42mm M.2 drives with this capacity either.
Sorry to ask for clarification but you are talking about the main SATA drive aren't you? and not the M.2 slot used by the WWAN card as talked about above?
03-29-2016 03:01 PM
No, I am talking about how I added a 2nd SSD. I ordered mine with the 500GB SSD, but in my W520 I added an mSATA drive to serve as my boot drive so that I could use my 2.5 drive just for storage. That combo has worked out good for me, so I want to do the same with this computer. The M.2 form factor has replaced the mSATA size, but they both do the same thing for me, i.e. keep my boot & data drives separate. I use my computer in the field mainly, and away from wifi, so access to local storage is preferable to cloud solutions for me. So the more GB the better.
03-30-2016 12:41 PM - edited 03-30-2016 12:45 PM
There's a bigger storage option that I found:
I'm awaiting the arrival for my P40 Yoga and looking into purchasing this SSD but I'm still researching to make sure there isn't any issues with compatibility. I'm new to SSD and learning how to set up the SSD properly such as understanding trim and not defrag the drive at all. In addition, I plan on using the 256GB drive the laptop comes in as my boot drive and 512GB as my secondary storage drive.