Yes, sometimes P95 blend (since it tests some memory), I'm going to add Aida64 on advice from others and because it tests the new instruction set (but I've heard it can cause the heat spikes too using AVX instructions), but mostly if it is 24/7 stable folding I'm happy. I leave my rigs folding 24/7, so if I don't see currupted work units or any BSODs I call it stable for my needs.
Here is some info from Asus when they were putting together their Haswell + Z87 overclocking guide:
Unvalidated stress tests are not advised ( such as Prime 95 or LinX or OCCT, Intel Burn Test or other comparable applications ). For high grade CPU/IMC and System Bus testing Aida64 is recommended along with general applications usage like PC Mark 7. Aida has an advantage as it is stability test has been designed for the Haswell architecture and test specific functions like AES, AVX and other instruction sets that prime and like synthetics do not touch. As such not only does it load the CPU 100% but will also test other parts of CPU not used under applications like Prime95. Other applications to consider are SiSoft 2013 or Passmark BurnIn. Additionally this generation has a more specialized point of consideration for synthetic stress tests. When using an adaptive vid voltage control will be automatically controlled by the iVR when a complex concurrent AVX load is initialized from Applications like Prime95 or Aida Or LinX more voltage will be supplied than has been defined/requested.
Edit: SOURCEEdited by Go Gators! - 6/18/13 at 9:40am