Formula help please

Columns D to AH
If V, AG or AH has a zero - fail
but don't count blank cells, do nothing if blank

problem is getting fail, because the cells haven't been filled in yet, so
don't want it to fill fail if cells are blank, leave results column blank

Tried this: didn't work
=IF(COUNTBLANK(D5:AH5)=31,"",IF(OR(V5=0,AG5=0,AH5= 0),"Fail","Pass"))

tried this: didn't work
=IF(COUNT(V5,AG5,AH5),IF(SUM(V5,AG5,AH5)<1,"Fail", "Pass"),"")