No, it needs the newer Linux kernel (in RouterOS 5.x) for support.
Tom
Thanks Tom for answer.
That is shitty - because 5.x is not stable to put it on box that would be responsible for pppoe for 1k or 2k sessions.
Is that 100% sure that Intel 82574L NIC will not work ? I see some e1000 changes in 4.x changelog..
Not 100% sure but in my tests on the Atom D510 and D525, 4.x didn't work and 5.x does. I have not tried the latest 4.x but it was not mentioned in the 4.x changelogs and Mikrotik does not usually go out of their way to add new support to the current stable when the beta is close to becoming the new stable.
Here are the pertinent lines from the 5.x changelogs...
What's new in 5.0rc2 (2010-Oct-27 16:20):
*) added support for more Intel 82575/82576 PCI-Express Gigabit Ethernet cards;
What's new in 5.0beta1 (2010-Mar-31 09:17):
*)更新驱动程序and kernel (to linux-2.6.32.5);
*) added support for multiple Intel Ethernet cards;
And 5.x is just about ready for stable so you don't have too long to wait.
Tom