As expected, the rails were extremely close to their voltage specifications. The test rig could barely even make the power supply sway .01V. In order to actually stress this you will need to run in a NVIDIA SLI (Scalable Link Interface) or ATI CrossFire configuration. On second thought, it probably wouldn't even break a sweat. Though combine that with dual quad-core processors and it could spell a different story, but this thing should be able to handle mostly anything without problems. Aside from the cable length issues, we believe PC Power & Cooling has put together a serious power supply. Whether you are overclocking or throwing in the latest multi-GPU and multi-core parts the PC Power & Cooling Silencer 750W should be able to handle it.