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XPS 8920, expansion possibilities
I have two questions about possibilities for expansion of an XPS 8920.
1. Can I install both (a) pci-e nvme card in the x4 expansion slot [denoted 15 on the diagram "system-board components"] and (b) m2 nvme card [denoted 8 "solid state drive slot"] such that they both transfer data using four data lanes?
2. If the answer is Yes, then I shall have 2 pci-e devices plus 3 sata3 disks (not ssds -- one for windows10, two for linux which I already added). Will the bios see them all?
jim
Tesla1856
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March 26th, 2018 15:00
I'm not saying it won't work, but I've never heard of running more than one M.2-PCIe/NVMe SSD. Most people run the on-board one and then run the others as SATA (hopefully, mostly SSD).
I think the installed M.2-PCIe/NVMe SSD wants to be bootable C: (in Windows anyway). I've never tried Linux on my (similar to yours) Aurora-R6.
Finally, see this:
https://www.dell.com/community/Alienware-General/Alienware-Aurora-R6-Booting-Linux-on-PCIe-M-2/m-p/5520641
EDIT: Add-in PCIe cards normally use whatever lanes electrically available at the slot (usually determined by slot length, but not always) . Newer cards should support the higher-bandwidth v3.0 PCIe lanes.
jbennett0
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March 26th, 2018 17:00
Thanks for the quick reply, esp reference of nvme load modules. I understand that opensuse, at least, pretty much automatically accommodates in its installation process. Following Dell and opensuse instructions, I had no problem with the linux installation.
I'm hoping if someone knows that the z270 chipset cannot deal with two x4 streams simultaneously.
Best, jim
Tesla1856
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March 26th, 2018 18:00
AFAIK, the chipset and cpu can use all the available PCIe lanes concurrently. Whether two sets or x4 are being used for SSD access is irrelevant I think. There's a lot of others doing other stuff (like running the video-card(s)).