Solved What is this slot in Dell optiplex 980 motherboard?

Dell / Optiplex 980
July 14, 2020 at 02:49:03
Specs: Windows 10, core i5 8GB DDR3
This is a view of my Dell Optiplex 980 mini tower motherboard. What is the white slot in the top left side?? I am trying to put an M.2 NVMe SSD TO PCIE adapter. So what adapter should I buy for this slot? In the manual it says; "PCI card connector" only. but what kind?

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July 14, 2020 at 03:01:14
✔ Best Answer
It's a PCI slot (not PCIe). The black connector next to it is PCIe.

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July 14, 2020 at 03:06:17
Card slot?

Not quite the board you have but one of the series for the 980 mini tower series?

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July 14, 2020 at 03:12:12
In this case I am not finding any PCI adapter. They are all PCIe...

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July 14, 2020 at 04:10:45
if you look at the image of your board it's slightly different to the images on Dell's site. and appears to be lacking one or more slots.

This link explains the varies types of pci and pci-e slots...

You appear to have one pci on your board; i.e. the white slot; and a second black(?) pci-e slot?

The black/blue one is described by Dell (on my earlier reference) as a pci-e x16? the white one appears to be a pci (32bit?)

Are you sure the board you have is an actual genuine replacement for the Optiflex; as it does appear to lack a couple of slots which the original Dell board has (as per eeh reference earlier posted)?

This youtube may also elucidate?

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July 14, 2020 at 04:32:31
@ trvlr, There are 3 types of optiplex 980 models. Full tower, SFF and mini tower like mine. Their MBs are different. Mine is the one in the link provided. The mini tower is x64 so do you think it contains slots that are x32? But regardless of the difference between the two, if I cant find in the market M.2 NVME to PCI adapter (not PCIe) then I can't I can't use this slot to put SSD drive on it. The only way remaining is SATA 2.5" to M.2 adapter.

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July 14, 2020 at 04:53:21
Page 9 here is your board:

I’m out saving world from the Chines plague just now, so won’t likely be here via a proper computer until later.

But the above reference ought to help ?

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July 14, 2020 at 09:19:23
Why the need for an SSD which requires that adapter?

Can you not simply use a standard HDD/SSD - connected using the onboard connectors?

If it's an issue of space for an SSD... They can be simply affixed to the case using velcro... and then connected to a board controller as per norm? One of the regulars here apparently has done that a few times...

Each image for the versions of this board includes a key as to what each component (slots various included) is.

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July 14, 2020 at 13:17:03
"Full tower, SFF and mini tower like mine. Their MBs are different. Mine is the one in the link provided."

You said you have a mini-tower but the eBay link you posted is to the SFF motherboard. It says so in the description - "Dell Optiplex 980 Motherboard SFF Small Board".

According to the Dell brochure...
MT has 2 full height PCIe x16 (1 slot routed as x4)
DT has 2 low-profile PCIe x16 (1 slot routed as x4), 2 low-profile PCI
SFF has 1 low-profile PCIe x16, 1 low-profile PCI

Regardless, I suggest you get a SATA SSD & connect it to the board's SATA port.

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July 14, 2020 at 17:43:39
Regardless of all info about MBs, mine looks exactly like the one I posted first. For those curious, I am trying to replace the regular SATA HDD with SSD to make my computer faster. It is clear to me now that this cant be done through the PCI slot in the computer, rather it has to be done through a SATA M.2 adapter. Thanks all.

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July 16, 2020 at 05:25:40
If that's your board, you don't have the MT, you have the SFF. The board has 2 SATA ports. Why wouldn't you just get a 2.5" SSD & connect it to one of those?

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July 16, 2020 at 16:50:38
You are right, eventually I will have to do that. It would have been faster using the PCIe interface but under the circumstance I have little choice.

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