works for my E4300 @ 266 FSB on :
1. DFI Infinity 975x
2. Foxconn 965
3. DFI Infinity DARK P965S
4. Biostar TF 965PT
5. Biostar TF P965

wont work with :
Gigabyte 965P DS3
Abit FP IN9 650i SLI

here's the pic