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M2 drive not showing up

Posted on 2016-11-08
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Last Modified: 2016-11-16
I have a P500 workstation from Lenovo. I installed the drive which is hidden pretty good but I did get it installed. Now the card that holds this drive is connected directly to the motherboard. I assume there is no SATA cable since it does connect directly to the motherboard? The drive will not show up even with checking for hardware changes?
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Question by:millerdog
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by:rindi
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What OS? Have you checked the BIOS? You may have to enable it there somewhere.
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by:millerdog
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Windows 7 enterprise. I will look at the bios now. I did notice that both M2 slots are not the same. One is SATA and 1 is PCI. I am going to take a look now and also check the bios.
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by:Jackie Man
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Look up the spec of your desktop and it says:-

http://thinkstation-specs.com/thinkstation-p500/

Slot 1 (Near CPU)PCIe x4, gen3, “open ended”, Full Length without FLEX card; Half Length with FLEX card, FHSlot 2PCIe x16, gen3, Full Length, FHSlot 3PCIe x1, gen2, Full Length, FHSlot 4PCIe x16, gen3, Full Length, FHSlot 5PCI, Full Length, FHSlot 6 (Near Edge)PCIe x4, gen2, “open ended”, Half Length, FH
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by:Jackie Man
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by:Kimputer
Kimputer earned 125 total points
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You probably already have the correct adapter since you mentioned you put it directly on the motherboard (I assume you mean a Flex port by that: http://shop.lenovo.com/us/en/itemdetails/4XH0G78729/460/D7A607354D464104883FBFF0DE5BE5B6

If so, then the only thing you need to watch out for is this rule:

M.2 PCIe SSD in Slot1 and  M.2 SATA SSD in Slot2

The difference is the protocol PCIe vs SATA. Check your M.2 SSD card for the full specs for that, and then put it in the correct slot.

Please power down when you do this, en power up to check if you see the storage in the BIOS.
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by:Jackie Man
Jackie Man earned 175 total points
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only win 8 or above has m2 driver built-in.

for win 7, you need to install the hotfix below.

https://support.microsoft.com/en-us/kb/2990941
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by:millerdog
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I switched slots to the other M2 slot and it still does not see the drive. I think you are correct on the specs and maybe they sent me a drive for laptops and not this P500? They sent a 512GB M2 SS drive Now seeing workstation tells me it is not a laptop but I will check with the vendor that sent the card. In P50 it finds the drive right off. That is Lenovo's laptop. It has 2 M2 slots.
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garycase earned 200 total points
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As noted earlier, boot to the BIOS and be sure the M.2 slots are enabled ... look carefully, as it may not be obvious where this is done.

Also, if your SSD is a PCIe unit, you'll have to install NVME support in Windows 7 => there's a link above for the Microsoft hotfix to add this.

It should NOT matter where the system is a laptop or a desktop ... if the slot is enabled it should simply work.
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by:millerdog
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To all thanks. I just saw another comment here which may be the trick. I have a call to CDW techs who think they know but I am thinking the above link for the fix may be it. I will try that today and get back. I have not forgotten this case and I still need to know why and I think the above fix may be it. I have not seen that yet.
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by:Jackie Man
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I still need to know why and I think the above fix may be it.

M2 SSD is a system driver and Win 7 has no idea about M2 SSD is actually sitting on the motherboard.
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by:garycase
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It's almost certain that your issue is simply that you don't have the Windows 7 driver installed for the M2 => have you tried that yet?
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by:noxcho
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It's almost certain that your issue is simply that you don't have the Windows 7 driver installed for the M2 => have you tried that yet?
Shouldn't BIOS show the drive even if Windows 7 driver is not installed?
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Author Comment

by:millerdog
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Is that a Lenovo driver? This is a Lenovo drive.
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by:garycase
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The driver linked to above is a generic driver to add NVME support to Windows 7 => it doesn't matter what specific drive you have.
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Author Comment

by:millerdog
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Jackie Man, why would I need to buy another card if the drive is connected to the motherboard to begin with? Not saying anything but curious as to why?
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Author Closing Comment

by:millerdog
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To all, I cannot thank you enough. I seem to have gone to class on this one. I found the answer and you all helped me learn and I mean you all helped. Great answers and it now works. I did enable the bios and moved the drive from slot 2 to slot 1 and it now sees the drive fine. It was not as simple as just adding the drive. This was a class. Not only finding out this desktop had so many slots but actually how to put the drive in. Lenovo was absolutely no help. We have a service for troubleshooting with them and they did not help at all. I cannot say thanks enough on this one. Now the next desktop will be a piece of cake until they change that one. Thanks again.
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