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jdrodrig
Token Ring
Posts: 253
Registered: ‎12-08-2008
Location: US
Views: 1,005
Message 11 of 43

Re: P50 buyer remorse?

thanks, just checked my order, and accidentally it seems I ordered the one for the PCIe. I am almost sure my disk is SSD. should I be concerned?

Guru
Posts: 1,794
Registered: ‎04-20-2008
Location: US
Views: 1,002
Message 12 of 43

Re: P50 buyer remorse?


@jdrodrig wrote:

thanks, just checked my order, and accidentally it seems I ordered the one for the PCIe. I am almost sure my disk is SSD. should I be concerned?


Yes, you will short out the connectors. Order the correct version.


P70 XEON 1505, BIOS 2.30, UHD 4k Display, 64GB non-ECC RAM, M3000M NVIDIA GPU, RAID 1 512GB Samsung 951 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.22,Xeon Processor, 32GB, PM981 1TB x 2, RAID 1
T470s, 16GB RAM, BIOS 1.10, i7-7500, WQHD display, 512GB PM961 PCIe NVMe SSD
badhabit_wb
Token Ring
Posts: 170
Registered: ‎10-26-2008
Location: louisburg, nc
Views: 982
Message 13 of 43

Re: P50 buyer remorse?

jdrodrig
Token Ring
Posts: 253
Registered: ‎12-08-2008
Location: US
Views: 968
Message 14 of 43

Re: P50 buyer remorse?

Thanks. I realized I might have misspoken.

I know for a fact the disk is M.2, what I don;t know if it is SATA or PCIE.

I am totally ignorant on this, it is a Samsung PM851.

I obviously get the difference between 2.5 and M.2, but is it that really different to have a M.2. SATA than M2. PCIE?

I ordered it seems the one for PCIE, is that the less risky or do I have to really match the type?

Maximus2016
Token Ring
Posts: 123
Registered: ‎02-05-2016
Location: CA
Views: 948
Message 15 of 43

Re: P50 buyer remorse?

According to the specs [PDF], the PM851 is SATA, not PCI-E.

medwatt
Punch Card
Posts: 75
Registered: ‎07-21-2016
Location: SL
Views: 853
Message 16 of 43

Re: P50 buyer remorse?

I think there's a misconception going on around here. The SATA and PCIe M.2 drives use the same tray. Part No. 4XB0K59917 and Part No. 4XB0L78233 have exactly the same specifications verbatim. If they were different, surely, they would differ in at least one measurement; but they do not.

 

jdrodrig
Token Ring
Posts: 253
Registered: ‎12-08-2008
Location: US
Views: 817
Message 17 of 43

Re: P50 buyer remorse?

thanks medwatt. I agree with you. specially after seeing the part first hand I realized, there is no way the same piece of plastic would not work for a PCIE or SATA. I think some people think teh tray woudl have connectors or anything electronic, while reality is that it is basically a piece of plastic with a screw hole.

Guru
Posts: 1,794
Registered: ‎04-20-2008
Location: US
Views: 813
Message 18 of 43

Re: P50 buyer remorse?

Parts are not released just for the "fun of it". The connectors for the M.2 SATA and M.2 NVMe SSDs are different. Perhaps there is a notch on one of the trays to "force" the correct orientation of the card to the connection. Unless you've compared both trays side-by-side, I wouldn't jump to the conclusion that they are identical.


P70 XEON 1505, BIOS 2.30, UHD 4k Display, 64GB non-ECC RAM, M3000M NVIDIA GPU, RAID 1 512GB Samsung 951 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.22,Xeon Processor, 32GB, PM981 1TB x 2, RAID 1
T470s, 16GB RAM, BIOS 1.10, i7-7500, WQHD display, 512GB PM961 PCIe NVMe SSD
jdrodrig
Token Ring
Posts: 253
Registered: ‎12-08-2008
Location: US
Views: 803
Message 19 of 43

Re: P50 buyer remorse?

Fair enough. 

Lenovo salesperson confirmed to me the same part works for both. I did not order both to compare.

Out of curiosity, have you installed one tray? The open end is basically a whole with two plastic legs to rest on the upper part of the board; there is no connectors. Connectors are in the motherboard and obviously the m2 slots in the p50 accept pcie and sata so it should have a connector that encompasses both. 

medwatt
Punch Card
Posts: 75
Registered: ‎07-21-2016
Location: SL
Views: 801
Message 20 of 43

Re: P50 buyer remorse?

Actually they have exactly the same dimensions. The only difference, as far as I can say, is that one comes with an extra padding for the heat issues while the others does not. I got this from a Lenovo employee :

 

"Ok, straight from the North American Workstation Product Marketing Manager (long title...), the two trays are because we originally had planned for one tray for both PCIe and SATA, but upon installing both drives we found that damage was occurring to the SATA drives.

Come to find out, PCIe drives need more thermal padding and that extra padding was causing damage to the SATA drives when installing them in the same tray.

Hope this helps!"

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