My question is fairly simple. Can a x4 physical (mechanical component) fit in a x16 PCIe, which is at x4 mode?
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I have never seen x16 slot run at x4. Why is it doing that? What motherboard chipset is that?– paradroidCommented Jan 18, 2011 at 13:55
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newegg.ca/Product/…-13-131-665--Product Take a look at the last black slot.– BurnzyCommented Jan 18, 2011 at 14:30
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I would guess it is for compatibility since a x16 pci-e component will never fit in a x4 physical slot, unless you are really really persuasive and have an hammer nearby– BurnzyCommented Jan 18, 2011 at 14:48
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1@burnzy the sabertooth has slightly larger heatsinks, which will be beneficial if overclocking. Otherwise they don't matter. The sabertooth has USB3 which might be useful over the next year or two. Otherwise I'd make my decision based on the slot layouts, and what slots will be free after you install all your cards.– Dan Is Fiddling By FirelightCommented Jan 18, 2011 at 21:20
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1@paradroid they're not common (16/8/8) is more likely to be useful, but I'd rather have the option of inserting an x16 card later if I find a need to do so; 4x physical slots often preclude this, and have reduced mechanical support even when the card will physically fit.– Dan Is Fiddling By FirelightCommented Jan 18, 2011 at 21:22
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1 Answer
Yes. The x16 slot is physically bigger than the x4 card and has 4 PCIe lanes available, so the x4 card will fit, and run at full speed.
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1@Kyle isnt a x1 slot smaller than an x4? Im not sure I agree with your statement.– ChrisCommented Jul 14, 2012 at 2:23
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3@chris a I meant x1 card can fit in a 16x slot. Wording is a little weird there since I used the term slot instead of card. For clarification a 16x slot can take a 8x, 4x, and 1x card. Commented Jul 15, 2012 at 3:04
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1@Kyle ahh my mistake, I was assuming you were speaking in context of the original question. Cheers– ChrisCommented Jul 15, 2012 at 3:22
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1it might not work or require complicated configuration: superuser.com/questions/1602514/… Commented Dec 5, 2020 at 19:21