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Achilles275
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November 21st, 2018 11:00
Alienware 17 R5 m.2 slots Sata compatible?
So, I've had this laptop for about a week and am already itching for a little more storage. One M.2 2280 slot is used by the factory NVME drive. I'd love to put a Samsung 860 EVO in the remaining 2280 slot, bu they are marked PCIe only.
So will the slot run with a sata drive in it or is it somehow limited to ONLY PCIe?
And, has anyone had any luck with installing a M.2 2242 drive in the half height slot?
Thanks!
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Achilles275
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Posted November 22nd, 2018 12:00
Yeah, the post you linked didn’t deal with my issue at all. Thanks for the assist though, perhaps I wasn’t clear in my OP
So, I went ahead and installed a SATA m.2 in the 2nd slot. The machine would not recognize my Samsung 860 EVO in that slot.
So, from my limited sample size of one, that is truly a PCIe only slot for nvme drives, not older and cheaper SATA drives.

JOcean
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Posted November 21st, 2018 13:00
This should help. The following post covers that subject.
https://www.dell.com/community/Alienware/How-many-SSD-and-HDD-slots-are-available-in-Alienware-17-R5/td-p/6103285
I am not a Dell employee...I am forum volunteer
Serious work on an E5430 and constantly building and working on an i5-6500 Desktop