Christian Ney, the head of moderating, posted a thread in the forums highlighting the new CPU-Z version and its impact on the validation. First of all, version 1.73 includes a bunch of new interesting features. Extreme overclock mode allows you to run CPU-Z with very light load to make validations at the edge of stability a lot more easy. When this mode is disabled, CPU-Z will make a validation after 3 seconds instead of instantly. Also, there is a CPU Benchmark included as a new tab. Most importantly, the validator has been updated.
The most important bit is that validations from older CPU-Z versions are no longer valid on the new website. So in order to validate your result, you need to use the latest version of CPU-Z. You can download the new CPU-Z version HERE.