But why are they still testing an old virtually extinct platform?

Kingston Technology Ultra Low Latency Specifications:

* 184-pin Unbuffered DDR Modules
* PC3200 400-MHz settings: 2-2-2-5-1
* Voltage: 2.7V
* Tested for optimum performance on ASUS® P4C800-Deluxe, Abit® NF7
* S and DFI® LanParty UT NF4 SLI-DR