I'm running FreeNAS 9.1 and the management interface (and therefore the CIFS shares) is running on the built in NIC which is an Atheros AR8151 v2.0 (MTU maximum 6120) and I wish to switch to a NIC that supports jumbo frames at 9k to take advantage of the headroom on my ProCurve 2824 switch.
The motherboard is a GIGABYTE GA-G41MT-S2PT with 2 - PCI slots, each has an Intel Pro 1000 MT NIC (em0 and em1); 1 - PCIe x16 slot with an IBM ServeRAID M1015 card reflashed with LSI firmware; 1 PCIe 1x slot that is empty. 2.5 GHz Core 2 Duo with 8 GB RAM.
I purchased an Intel Pro 1000 CT (PCIe 1x - 82574L chipset as em2) as the candidate (capable of 16k MTU) and I am able to configure the interface from the FreeNAS console. I have link layer indication at the switch and the NIC and I can ping its local IP but not the gateway. This, using the same CAT6 cable and switchport that was from the Atheros built in NIC (now turned off in the BIOS). I have also installed the new Intel Pro 1000 CT NIC into my Dell Vostro 200S running Windows 7 X64 and it appears to be fine. That, I would think, would indicate that the NIC is ok.
I happened to have a TrendNet (RealTek chipset 8xxx) NIC that does work in this PCIe 1x slot with the same cable on the same switchport (although the MTU max is 7k and not what I want). This would tell me that the GIGABYTE motherboard/slot is ok.
Does anybody have any idea why an Intel Pro 1000 CT will not work in this GIGABYTE Mobo? NIC Firmware? The "L" version of the 82574 is not supported?
Any help is appreciated.
Thanks
Danny
The motherboard is a GIGABYTE GA-G41MT-S2PT with 2 - PCI slots, each has an Intel Pro 1000 MT NIC (em0 and em1); 1 - PCIe x16 slot with an IBM ServeRAID M1015 card reflashed with LSI firmware; 1 PCIe 1x slot that is empty. 2.5 GHz Core 2 Duo with 8 GB RAM.
I purchased an Intel Pro 1000 CT (PCIe 1x - 82574L chipset as em2) as the candidate (capable of 16k MTU) and I am able to configure the interface from the FreeNAS console. I have link layer indication at the switch and the NIC and I can ping its local IP but not the gateway. This, using the same CAT6 cable and switchport that was from the Atheros built in NIC (now turned off in the BIOS). I have also installed the new Intel Pro 1000 CT NIC into my Dell Vostro 200S running Windows 7 X64 and it appears to be fine. That, I would think, would indicate that the NIC is ok.
I happened to have a TrendNet (RealTek chipset 8xxx) NIC that does work in this PCIe 1x slot with the same cable on the same switchport (although the MTU max is 7k and not what I want). This would tell me that the GIGABYTE motherboard/slot is ok.
Does anybody have any idea why an Intel Pro 1000 CT will not work in this GIGABYTE Mobo? NIC Firmware? The "L" version of the 82574 is not supported?
Any help is appreciated.
Thanks
Danny