Possible Nvidia Ethernet Flaw !!!

MissilemanMissileman Orlando, Florida Icrontian
edited May 2005 in Science & Tech
What I'm gonna say may be hard to believe. I have been having a strange TCP problem. Packet loss on braodband without a pattern developing, web pages that seem to stall and then fly. The worst was severe LAG spikes in WOW. This problem has been reported by many and has Blizzard pulling its hair out. I read a little blip on another board about a CRC computing flaw in the Nvidia NForce 3 & 4 chipsets that accounts for this and needless to say Nvidia is keeping a low profile. Since TCPIP works, most people wouldn't notice it.

Well I went in to the driver and disabled Checksum Offload as suggested and rebooted. What a difference. No more router issues, no packet loss. Web pages "snap" now and no lag in WOW. Ping times dropped about 100ms.

Even with this setting for hardware checksum turned off it is still faster than the other Realtek I have built on to this NEO2 board. My friend and I have confirmed this works on 3 different drivers and 2 chipsets.

Something you may want to look into if you are having quirky TCPIP routing, lag, DNS issues.

Anybody else confirm this ?

Otherwise just FYI !!!

Comments

  • FlintstoneFlintstone SE Florida
    edited May 2005
    I haven't really put my new NF4 box online yet but am curious as to how one would modify the driver as you suggest. Not knowing a lot (read anything!) about the underlying code (drivers) that runs my computers I'd be a little nervous about just marching on in and modifying something like that without at least a framework of a guide! So, if you wouldn't mind a little guidance for us inexperienced folks, we'd sure appreciate it!!

    TIA'

    Flint :cool:
  • danball1976danball1976 Wichita Falls, TX
    edited May 2005
    Flintstone wrote:
    I haven't really put my new NF4 box online yet but am curious as to how one would modify the driver as you suggest. Not knowing a lot (read anything!) about the underlying code (drivers) that runs my computers I'd be a little nervous about just marching on in and modifying something like that without at least a framework of a guide! So, if you wouldn't mind a little guidance for us inexperienced folks, we'd sure appreciate it!!

    TIA'

    Flint :cool:

    Changing settings like that is done in the Device Manager for that device
  • MissilemanMissileman Orlando, Florida Icrontian
    edited May 2005
    Here you go step by step :)

    Go into Control Panel
    Go into Network Connections
    Double Click "Local Area Connection X"
    Click Properties
    Click Configure
    Click "Advanced Tab"
    Look in the properties list for "Checksum Offload"
    Change it to disabled
    Click Okay and reboot.

    This is for an Nforce 3 with 5.10 release drivers, but is about the same for all network cards if they have a hardware checksum setting.
  • GrayFoxGrayFox /dev/urandom Member
    edited May 2005
    Good thing I abandoned my onboard nics due to poor udp transfer.

    I got intel pro/1000 mt cards now there awesome :D.
  • ShortyShorty Manchester, UK Icrontian
    edited May 2005
    I just did this and my mysterious DNS issue with my brand new board just dissapeared :D

    Cheers Missleman!
  • TexTex Dallas/Ft. Worth
    edited May 2005
    Missileman doesnt post much but most would be well advised to listen closely when he speaks.

    Lets just say that Tex says "Missileman knows his stuff".

    And I wish he stayed more active as his thoughts are much appreciated.

    Tex
  • FlintstoneFlintstone SE Florida
    edited May 2005
    Thanks for the step by step. I thought you were suggesting to us to go in and modify the code itself. Thanks again for the insight!!

    Flint
  • TexTex Dallas/Ft. Worth
    edited May 2005
    I use x-setup to tweak that setting and many more.

    Tex
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