PCIe x1 slot compatibility?
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=3794
Printed Date: 22 May 2024 at 5:17am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: PCIe x1 slot compatibility?
Posted By: jhansman
Subject: PCIe x1 slot compatibility?
Date Posted: 14 Nov 2016 at 3:03am
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" rel="nofollow - I just purchased an adapter with a USB-C (USB 3.1), which fits both of the white PCIe slots on my 890FX Deluxe 5 mobo, but when I try to install the drivers that came with it, I get the error message that the host controller (i.e., the adapter) is no found. I've tried both slots with no luck. Is there some trick to getting these slots enabled? Is one of them different from the other. Any help here would be most appreciated. |
Replies:
Posted By: wardog
Date Posted: 14 Nov 2016 at 5:03am
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Ok bud. You have it all wrong and if you haven't yet ruined your motherboard or the USB card count yourself VERY lucky. Lucky indeed. The white slots on your motherboard are PCI, not PCIe I'm gonna assume you have a PCIe USB card in your hands as I don't believe a PCI card could hit USB 3.1 speeds. The PCIe card you have belongs in the blue slots of your motherboard. Try that and reply back if the drivers get installed. |
Posted By: Xaltar
Date Posted: 14 Nov 2016 at 5:25am
For some reason the PCIe x1 slots on that board are also white  http://www.asrock.com/mb/AMD/890FX%20Deluxe5/ Based on the fact the board didn't burn out I am going to guess the OP used the correct slots. The issue is likely compatibility. Could you post the model of the PCIe USB 3.1 card you purchased? Wardog's suggestion of trying the blue slots is also a good idea, they are also PCIe slots and there is no risk using shorter (PCIe x1, X4 or X8) cards in them, they should work.
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Posted By: wardog
Date Posted: 14 Nov 2016 at 6:00am
Sheet! They are white aren't they  |
Xaltar wrote:Posted By: parsec
Date Posted: 14 Nov 2016 at 12:10pm
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wardog, Xaltar, consider this: How could a USB 3.1 adapter card work at full speed in a PCIe x1 slot? Or even fit in a PCIe x1 slot? The USB 3.1 card included with my X99 board, is a PCIe 3.0 x4 slot card. I agree the OP's card would seem to belong in a PCIe x4 - x16 slot, with at least x4 support. The OP's board supports PCIe 2.0. They actually make PCIe 3.0 x1 USB 3.1 cards? Is that a one port card? One PCIe 3.0 lane is 8Gb/s. Didn't bother looking, working at 6:30AM again, later!! ------------- http://valid.x86.fr/48rujh" rel="nofollow"> 
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Posted By: wardog
Date Posted: 14 Nov 2016 at 2:35pm
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I didn't stop to think of throughput allowed over x1. But, looks like there are some x1 Type-C cards out there: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100160874%208000&IsNodeId=1&Description=usb%203.1%20c%20card&name=Add-On%20Cards&Order=BESTMATCH&isdeptsrh=1 We'll just have to wait for the OP to respond before we find out apparently ????? |
Posted By: Xaltar
Date Posted: 14 Nov 2016 at 2:38pm
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My concern was the PCIe version, I have not used any USB 3.1 AICs so I have no idea what's available beyond a quick google search that yielded the same one Wardog linked. -------------
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Posted By: jhansman
Date Posted: 15 Nov 2016 at 9:28am
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" rel="nofollow - Well, by now you all know that the diagram in the manual (p. 12) shows that both white slots , numbered 37 & 41 on the diagram, are PCI-e 2.0 x1. If the other slots will work, I'll give them a try, as now I am only using one of x16 slots for my vidcard. As for the maker of the USB card, no idea. Got it from Deal Xtreme (only took a month to get to me-slow boat from China); I knew it was a dice roll ordering from them, but I wasn't ready to pay $40 for the Asrock card on Newegg, for the luxury of 3.1 speeds. All this is for a USB-C cable that will connect an audio device to my PC. So, just to be clear, even though the card is the x1 size, it can still work in a larger slot? THAT would worry me about frying something, so until I hear from you all hear that this card can be used in the larger slot, out it stays. All I know now is that it is not recognized by Win 10, does not show up in Device Mgr., and the drivers will not install. I suspect the card is shoddy, and the slots are fine, but I have no other card to check this out with. |
Posted By: jhansman
Date Posted: 15 Nov 2016 at 9:42am
No the card is designed for the x1 slot, but it's a Chinese cheapie, and not docs came with it (other than the README on the driver disc). I think I'm just gonna have to eat this. |
Posted By: jhansman
Date Posted: 15 Nov 2016 at 9:47am
Yeah, the card I got looks like most of those linked above. As much as I'd like to have that USB-C port in my system, I can't see putting out $40-50 for it. Too bad that's what it costs for one that probably works. Sigh... |
Posted By: parsec
Date Posted: 15 Nov 2016 at 10:48am
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First, ONLY use PCIE slots, NOT the PCI slots. That would be slots PCIE1, PCIE2, PCIE3, PCIE4, and PCIE5. The old PCI interface is different and not compatible with a PCIe card. Yes, you can use a PCIe x1 card in any PCIe slot, whether x4, x8, or x16. Looking at any overall PCIe slot, from left to right horizontally, we see a slot, then a small filled in "key" that indexes with a notch in the PCIe card, and then the second slot on the right of the key. The first slot on the left provides power and control connections for the card. The second slot provides the data connections and their support connections. PCIe cards of x1, x2, x4, x8, and x16 simply have that many data connections, the others go unused in longer slots used with shorter slot cards. The PCI slots are completely different, and have power pins in different locations along the length of the entire slot. If you put your PCIe x1 card in a PCI slot, which you said you did, with the metal mounting bracket where is should be to mount on the PC case (which would not align correctly), and turned on the PC, you may have killed the card at that point. IF the pins in the PCI slot contacted the connections on the PCIe card, -12V was applied to a +12V contact on the card, and +5V was applied to two control clock pins on the PCIe card. Also, +5V was applied to a signal connection contact on the card. That's only a small review of the slot pin to card contact mismatch. None of the ground connections in that general area match, but who knows what actually happened. ------------- http://valid.x86.fr/48rujh" rel="nofollow">
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