From: Ben Greear <greearb@candelatech.com>
To: Dave Hansen <haveblue@us.ibm.com>
Cc: "Feldman, Scott" <scott.feldman@intel.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
"'netdev@oss.sgi.com'" <netdev@oss.sgi.com>
Subject: Re: Update on e1000 troubles (over-heating!)
Date: Tue, 15 Oct 2002 00:07:37 -0700 [thread overview]
Message-ID: <3DABBEB9.7040004@candelatech.com> (raw)
In-Reply-To: 3DABAACE.9040706@us.ibm.com
Dave Hansen wrote:
>
> I get some strange e1000 failures too. It usually involves the watchdog
> kicking them back into order, but sometimes they'll stay offline for a
> while. Heat would explain it, though, because it only happens when I'm
> actually using the cards for a benchmark. I figured that it was either
> my cables, or a shoddy switch.
>
> The new dual-port e1000 that I have doesn't seem to have this problem,
> even though I'm running 4 times more traffic than the singles that I had.
That was exactly the behaviour I noticed. I believe it's because when you
run two side-by-side, they cook each other (I'm assuming you didn't run
2 2-ports side-by-side)
Try strapping a fan on them somehow and I bet all your troubles go
away (and maybe your .ibm email will shame Intel into putting heat-sinks
and/or small fans on their NICs... ;)
(I ran two Netgear 302t NICs (tigon-3) side-by-side for 4 days at max speed, and they
didn't drop a single packet, even though their heat-sinks were too hot to
touch!)
Ben
--
Ben Greear <greearb@candelatech.com> <Ben_Greear AT excite.com>
President of Candela Technologies Inc http://www.candelatech.com
ScryMUD: http://scry.wanfear.com http://scry.wanfear.com/~greear
next prev parent reply other threads:[~2002-10-15 7:01 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-15 2:20 Update on e1000 troubles (over-heating!) Feldman, Scott
2002-10-15 2:37 ` Andi Kleen
2002-10-15 2:54 ` Jonathan Lundell
2002-10-15 5:42 ` Dave Hansen
2002-10-15 7:07 ` Ben Greear [this message]
2002-10-15 7:01 ` Ben Greear
-- strict thread matches above, loose matches on Subject: below --
2002-10-06 7:33 Feldman, Scott
2002-10-08 18:44 ` Ben Greear
2002-10-06 3:38 Ben Greear
2002-10-06 3:47 ` Andre Hedrick
2002-10-06 22:38 ` jamal
2002-10-07 0:14 ` Andre Hedrick
2002-10-07 11:56 ` jamal
2002-10-07 3:46 ` Ben Greear
2002-10-07 5:26 ` David S. Miller
2002-10-07 11:53 ` jamal
2002-10-07 11:58 ` David S. Miller
2002-10-07 16:40 ` Ben Greear
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