i have had nothing but problems from abit and the NF7-S....mostly related to the IDE channels fomr one reason or another, RMA'd it, got one wit sound problems (which was no good for it was going to be a HTPC, the board was what pop wanted for a board) RMA's it a 3rd time and had major bios issues...finally i took control and hooked him up with a KT4 Ultra or something of the sort and its working fine
keep in mind i was having issues as i was bulding the thing, i hadnt oc'ed it and i honesley hadnt had these problems from any thing else excpet a compaq