[suprnova74]

I bought a netgear RAX75 which I understand will most likely not get support for DD-WRT. When looking for alternatives, I noticed an old Mini-ITX Atom D510 board (4gb ram) that's just been collecting dust which I intended to be built into a NAS but wound up going a different route. I figured it may be a great alternative to make into a DD-WRT firewall/router? Would that be sufficient to handle routing for a 1GB internet connection?

Any constraints as far as cpu with what i could enable? I guess I can install the free version and check performance and go from there, but I didn't see any hardware charts as far as what is necessary for the x86 flavor of DD-WRT.

This will be a LAN only device. I don't envision adding a wifi card to it.
Thanks for any pointers

[Wildlion]

It is going to depend on what you want to do. The more features and extra computations you add (such as encryption) the more cpu power is needed.

Take a look at:
https://wiki.dd-wrt.com/wiki/index.php/Supported_Devices

notice that most of the devices are not high powered cpus for general routing.

[flood404]

Ok I looked up this board. You are going to need a PCI NIC card. The realtek based ones will work just fine. Make sure its gigabit one.


Then use the x64 version since this CPU is a dual core with 4 threads. The 32bit DD-WRT is limited to 1 core 1 thread from what I remember but its also limited on 3GB or so of RAM. The 64bit dd-wrt will support all the cores and threads and your 4GB ram.

Disable the onboard audio in BIOS.

Boot this system with a small SSD or small SATA HDD. You can do NAS with this unit just fine if you want. It will support 1Gbps speed for sure. Even a old Dual core cpu will do it.
This one will load just fine on that board.
ftp://ftp.dd-wrt.com/betas/2021/01-24-2021-r45563/x86_64/dd-wrt_x64-webupgrade_public_vga.bin

[ho1Aetoo]

32 or 64Bit has nothing to do with SMP (Symmetric Multiprocessing)

32Bit systems also support multiple CPU's

64Bit is only needed if you have more than 4GB RAM.

[flood404]