ASRock onboard LAN speed limited to 10 Mbps

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GregOliver

GregOliver

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Apr 11, 2017
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Hi everyone, I have an ASRock M3A790GXH/128M motherboard from 2010, running Windows 7.

My on-board LAN connects at 10 Mbps and I can't get it to go higher. I have another older LAN card in my PC which defaults to 100 Mbps, so the cable/router are not the problem. Changing the advanced device driver settings to 100 Mbps full duplex does nothing, plugging in the cable still shows the same 10 Mbps network speed. In the BIOS I saw no special LAN settings except enable/disable. My drivers have been updated to the latest version.

I've searched around but didn't find a solution. Any thoughts?
 
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krzyimprt

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Mar 25, 2013
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Try switching cables and see if your other LAN port also runs at 10Mbps. If so then it's a cable issue.
 
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GregOliver

GregOliver

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Apr 11, 2017
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There are 2 ports in my PC, the one on the motherboard and the one from an older PCI LAN card. When I plug the cable in the PCI LAN card, it works at 100 Mbps by default. When I plug it in the integrated LAN card, I can't get it to work at anything other than 10 Mbps (even though it supports speeds of 1 Gbps). That is the speed reported in the Netword and Sharing Center, and the one from tests like speedtest.net.
 
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krzyimprt

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Mar 25, 2013
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I understand. I have a feeling it's the cable you're using. Reason why I told you to swap cables around and see if the PCI LAN card also runs at 10Mbps. If so it's the cable.
 
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GregOliver

GregOliver

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Apr 11, 2017
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Ok, I will try it out and post the result. Thank you!
 
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GregOliver

GregOliver

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Apr 11, 2017
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510
I didn't get to switch the cable because I upgraded my internet to 300 Mbps and I did receive it all with my old cable if I connect it directly to my ISP. The problem now is that my router only has WAN/LAN ports of 10/100 Mbps, so my network works at 100 Mbps if I use the router. I still don't know what was causing the old problem, but it's gone apparently.
 
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