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Re: [Discuss-gnuradio] [USRP-users] Reliable Ethernet controllers and la

From: Rickard Radio
Subject: Re: [Discuss-gnuradio] [USRP-users] Reliable Ethernet controllers and laptops for USRP N210 ?
Date: Wed, 12 Dec 2012 18:38:06 +0100

OK, interesting. Yesterday I tried a brand new Lenovo T430s (direct out of box and with Intel 82579LM) with and without power supply connected and both worked flawlessly.
That test was under Windows running Ettus precompiled UHD binaries. No extras, just "benchmark_rate --rx_rate 25e6 --duration 60". 

Under Windows, this test give me exactly the same problem on my Acer Aspire 3820T with AR8151 NIC as under Linux Ubuntu 12.04. Same version of UHD (late November). 


PS. In my previous email the laptop model was "Acer Aspire 3820T" not "8820T".

On Dec 12, 2012, at 6:19 PM, Johnathan Corgan <address@hidden> wrote:

On Tue, Dec 11, 2012 at 11:17 PM, Ian Buckley <address@hidden> wrote:
I ran benchmark_rate with the same parameters tonight on an Intel 82574L and and Intel 82579V, also with flawless results.

I've had some issues with a laptop-based 82579V failing to negotiate 1000M with the N210 when the laptop was on battery power, but working normally when the laptop was plugged into its AC adapter.

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