external SSD SATA controller

February 26, 2020 at 00:49:12
Specs: Win 10, 8GB
I had 3 SSD's on my main computer, which were not running fully OK because my (older) mainboard only has 2 SATA-3 ports. So, one drive was connected to a SATA-2 port.

Bought another SSD, but also an extra SATA-3 controller card (PCI-E 2x) with four SATA-3 ports.

I connected 2 SSD's to this new controller, and the other 2 SSD remained connected on the SATA-3 onboard controller.

I didn't really bother which drive was connected where, as I think: they're all SATA-3, so that is OK.

On boot, he is displaying two of them (of all the 4), but then the machine boots correct. I think my C drive is on the external controller, but not 100% sure there.

I am going to switch my C: drive to the newest drive, and that one for sure is connected to the external controller. That SSD is also the fastest now, it's a Samsung 860

But my question is: MUST I connect my boot drive to the internal controller, rather than to an external one ?

I do not plan on removing any of the old SSD's.


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#1
February 26, 2020 at 02:32:58
It depends upon the motherboard and the SATA card. Some combinations allow you to boot from the external controller, some don't.

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#2
February 26, 2020 at 02:39:35
I'll double-check this evening, but I think my boot drive is actually attached to that external one at the moment. The mainboard is an Asus by the way, old, but high-spec. I had that in the "Specs" field of this thread, but now I only see my Windows specs there ... anyway.

EDIT: My boot SSD turns out NOT to be connected to the external controller. The controller seems to have no brand, but it has a Marvell-chipset

message edited by Looge


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#3
March 3, 2020 at 01:27:23
For good measure I have connected the boot drive, and the fastest drives, to my internal SATA controller. And I have connected my old (Corsairs) to the external SATA controller. Speed is not OK yet (see other thread), but all other seems OK.

Probably the external controller can boot, but it may also depend on my BIOS/UEFI. At first glance, this one does NOT list my external controlled drives in the Boot-section of the BIOS/UEFI. But it's OK now, I don't want these disk to be used as boot. Maybe issues occur on the next Windows install, I'll see.


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