I just compiled an openwrt build , which version is 40820 , for my htpc box.
I would like to share with you , so that if you have simiar hardware with me , you don't have to compile by your own.
My box is using Celeron 1037u , and 4g ram , AR90XX wifi card , realtek 8188 nics , so this build only includes the drivers of them .
1.Enabled SMP in the kernel , supports up to 16 cpu threads.
2.Enabled HT in the kernel , so it supports hyper threads.
3.Enabled big memory option , which supports up to 64G ram , and in my pc , it would shows about 3.7G highmen, if you know the different between highmen and lowmen , you should understand 32bit kernel can never really support 64g ram
4.it supports USB keyboard.
5.Very pure build, didn't come with any packages exclude busybox and some basic tools.