Overclocking
For our overclocking tests, we relaxed our memory timings to 2.5-4-4-8, lowered the CPU and HT multipliers, and started cranking on the HT clock. Things progressed smoothly all the way up to 270MHz, but at 275MHz and higher, the board would hang right after the PCI device listing stage of the boot process. We tried everything we could to broach the 270MHz barrier, including extra voltages, lower memory dividers, different DIMMs, and even disabling all of the board's onboard PCI devices, but none would allow us to boot into Windows with a HT clock above 270MHz. That's a somewhat disappointing result given the RDX200's wealth of overclocking options, but 270MHz is still a healthy overclock.

To test the RDX200's performance with an overclocked HT and memory bus, we ran the board with a 270MHz HT clock, 1:1 memory divider, and a 9x multiplier that kept our Athlon 64 FX-53 processor as close to its default 2.4GHz clock speed as possible. Testing was conducted with relaxed 2.5-4-4-8 memory timings, so the results below differ from those earlier in the review.