Gigabyte Z77X-D3H LAN driver causing BSOD

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po4h3nh4

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Jan 4, 2014
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Hi all. I have purchased a new MoBo as stated above with a i5-3570k CPU and 16 GB RAM. My problem is the MoBo LAN driver Qualcomm Atheros who is causing repeteadly BSOD a few hours after being connected to Internet, but only at high load rates (discharging big files, hosting a Server for playing Internet Games, running Emule, etc. The info from the BSOD screen points out to L1C62x64.sys driver. I have updated such driver and others from Gigabyte website, newer one being 2.1.0.21 version . No success. I gave back that MoBo to the dealer and got a new same one, but same problem. Please, any help will be appreciated. I am afraid I will have to change brand and go to an Asrock MoBo.
Other data, Win7x64 Ultimate, GPU EVGA NVidia GTX-580, Internet connection optic fiber 50/10 MB d/u.
 
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po4h3nh4

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Jan 4, 2014
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@ Junkeymonkey, thanks for the reply, if I just remove Qualcomm Driver and restart, Windows 7 cannot find a controller, neither locally nor in Windows Update, so I just have to reinstall again Qualcomm's.

Just surfing the Internet or playing online games as a client, seems not to be a problem. But heavy traffic/bandwith/high number of connections seems to be the weakest side of this MoBo, something she cannot stand. I had before another Gigabyte GA-P35-DS3L MoBo whose LAN controller worked fine in those cases of heavy traffic. But is seems Gigabyte has chosen a weak driver subsupplier for this their new Z77 MoBo

Any hint? Thanks in advance.


 
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johnbl

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Nov 4, 2012
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when these drivers bugcheck, microsoft windows errror reporting will report it, microsoft will turn around and talk to the driver maker and they will make a fix and place it on their website. The motherboard manufacture often will not bother or has a big delay in updating their website with the fixed driver. In this case I would turn directly to the chip makers website and get their updated driver:

http://www.atheros.cz/atheros-network-drivers.php (not sure if this is the correct link but it is a start)
the chips are OEM products, some providers do not provide drivers to the public, only to the manufactures that buy their products (chips). This website has collected various versions of the driver and provided them for download. download, scan for malware before you use them.
 
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junkeymonkey

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i'm trying to learn somthing about this lan myself and as of now i dont think i would want it on my build being it seems to relieant on the 3ed party software to work and you kinda prove that for now .. to me the lan should work as a ''normal'' lan out of the box with out having to install quailcoms software.. so with out the qcom software installed and you go to device manager it shows theres no lan?
 
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po4h3nh4

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Jan 4, 2014
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Yes, Junkeymonkey, uninstalling the Qualcomm driver stops any lan connection and Win7 device manager cannot find any driver itself or in Windows Uodate.

Thanks for your reply, Johnbl, but Qualcomm's website, on the other side, does not show any driver, and www.Atheros.cz website dows not show newer versions of the driver than the 2.1.0.21 (dated 26 November 2013) version the Gigabyte website shows.
 
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johnbl

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post your minidump to skydrive or somewhere on the cloud and give it public access. Sometimes I have see anti virus software doing "end point protection" that causes delays and prevents proper function fo these device drivers.
some of the blocked routines are time critical and get delayed (or prevented from completing) beyond the max time and the system takes this as a hardware failure and bugchecks. Mostly I have seen this in systems that had a demo version of a scanner that was still running but never updated and just needs to be removed.



 
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junkeymonkey

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go to killergaming.com and look around there to see what they got going it will not load for me but just trying to find somthing to help you out have been all deadends for me here. so i'm sorry i cant help you but you did help me alot on weather or not to buy a board with this lan on it... good luck
 
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johnbl

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I often look to mother board vendors that use a Intel LAN chip, I do this because Intel is very good about testing and fixing their drivers. It often limits my selection of motherboards, so I just broke down and got a clone type I350-T2 and run the very good Intel drivers on it. I use the Intel drivers and team the outputs together, and run the 2 LAN adapters on my motherboard in a less stressful manner.
I paid about $75 on sale when I got it, but it was a clone card, not made by Intel (just their chip and drivers). I will just pull it and put it in my next machine when I upgrade.


 
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po4h3nh4

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Jan 4, 2014
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Thank you for your advice, I will follow it and report what happens. In the meantime I've read a very close issue in Gigabyte's Forum and the answer given was to buy and install a separate PCI-E LAN card!. It's disappointing that such a MoBoard, priced near €150
needs a dedicated LAN card!
 
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