On stock cooling ... aftermarket cooling does a lkot betteroverclock that and be prepared for heat issues.
For Intel chips.ASUS the best for OC'ing
Try overclocking a K8 chip ... after playiing a on a DFI/MSI board (more so the DFI), you'll not know how to lasted so long without itI say that cause i have built a couple computers using different brands. ASUS boards and they were the easiest to overclock