Problems cracking sha1

[x34cha]

I have 16k hashes.. I run hashcat on them and it does not crack any.. I have a amd 7970

examples:
<removed>

They are sha1(salt.pass) as far as I know..

Can anybody tell me why they won't crack..

[radix]

8 posts prior to this one, you should know better. Take a week to read the rules again.