Will gtx 1050 work in a PCI-E 2.0 x1

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audriss

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Oct 14, 2017
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So i'm planning to buy a gtx 1050, that is 128 bit PCI-E 3.0 card, but just wanted to ask this specific question because i couldn't find such a question on google. Will my gtx 1050 work fine in a 1 lane PCI-E 2.0 slot or is it better to put it in a PCI-E 1.0 16 lane slot? I know it will work with PCI-E 2/1 but i am confused about the lanes. For further details, this is the exact card i want https://www.zotac.com/us/product/graphics_card/zotac-geforce-gtx-1050-oc#spec

And these are my slots
Slot PCI-E
Slot Type PCI-E
Slot Usage In Use
Data lanes x16
Slot Designation PCIE1
Characteristics 3.3V, Shared, PME

Slot PCI-E
Slot Type PCI-E
Slot Usage Available
Data lanes x1
Slot Designation PCIE2
Characteristics 3.3V, Shared, PME
Slot Number 3
There are PCI slots too, but as far as i know, it's not even worth looking at them.
 
Solution
-Fran-
Nope and nope.

Unfortunately, as of the PCIe 2.1 spec, they broke compatibility with 1.0 and 1.1 due to increased power requirements. This is to say, if your MoBo can deliver a bit of extra power to the PCIe 1.0 lanes (going off-spec) you might be OK, but that is a gamble.

And PCIe X1 ports are physically different from X4, X8 and X16, so the card won't fit. Now, a X16 port can work as a X1, but that is up to the PCIe controller (nowadays, CPU dependent).

Cheers!
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-Fran-

-Fran-

Illustrious
May 3, 2007
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Nope and nope.

Unfortunately, as of the PCIe 2.1 spec, they broke compatibility with 1.0 and 1.1 due to increased power requirements. This is to say, if your MoBo can deliver a bit of extra power to the PCIe 1.0 lanes (going off-spec) you might be OK, but that is a gamble.

And PCIe X1 ports are physically different from X4, X8 and X16, so the card won't fit. Now, a X16 port can work as a X1, but that is up to the PCIe controller (nowadays, CPU dependent).

Cheers!
 
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Solution
BFG-9000

BFG-9000

Splendid
Sep 17, 2016
3,424
439
27,090
The only power spec change is the 8-pin can deliver 150w instead of 100w.

PCIE1 and PCIE2 do not refer to the type of PCIe on those slots, only the slot number.

The x16 is preferable because technically, the x1 slot is only supposed to deliver 25w. I have used higher wattage cards than this in a x1 slot, but why risk it when you have a perfectly usable x16 slot next to it?

BTW, many x1 slots are open-ended nowadays to fit x2 or higher cards, though at x1 speeds. If it's not already open, the back of the slot may be carefully cracked away.
 
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