Network Card Slower?

ultramel1987

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HI there

I hope someone can help me.

I purchased a motherboard (G31M+ Ver. 6.x) a few months ago. my pc has since been hit my lightning, and now the onboard LAN does not work, so I put in a 3C905 tx 10/100 ethernet card.

Is it possible that this 3C905 tx card would make my shared internet connection slower than when I was using the onboard LAN?
I would just hate to go any buy a new network card only to find out that it is not going to help with the speed?

I know they are both 10/100 speeds, and I am still using the same cable, so I dont get how it can be slower?

Thank you

Regards
 
You shouldn't notice a difference between the onboard and PCI network cards. It might be that your PCI one is running at 100Mbps half-duplex or 10Mbps, instead of 100Mbps full-duplex.
 
Also, do you have other PCI devices?

PCI bus has a total of 133mb/s (give or take) of bandwidth. The more PCI devices you have the less bandwidth, seeing as they all share a common bus.
 
hi there

thank you for the info. I found where to change the adapter settings, and put it on 100mb full.
Still the same. extremely slow. WHich other devices are PCI devices?

Would a wireless dongle or wireless card be better?

Thank you
 
How does your CPU usage look? I'd suggest that you run Process Explorer, since it can show if the CPU usage is due to Interrupts or applications.

If your network problem turns out to be an interrupt problem when copying to/from your hard drive, then you should look into your HDD's DMA settings.
 
a PCI NIC is always slower that an onboard NIC.

We tested this on both HP and Dell workstations (after losing the onboard LAN after lightning strikes)

Onboard NIC's are wired directly into a PCI bus, PCI-E bus, or into a special transport similar to what Intel did for their onboard gigabit NICs.

Best is to get a (descent) PCIe NIC. (don't bother with PCI).
Leave everything to default settings (auto negotiate).

You can try fiddling with the BIOS to see if you can assign the PCIe NIC card a dedicated IRQ.
If not, try and share the IRQ with only one other device.


Some of the R99 PCI NIC's are really crap and barely do 12Mbps.
 
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