ASUS Crosshair V Formula (AMD990FX) - first part of the puzzle for Scorpius

[FlanK3r]

Overclocking with retail x6 1100T, benchmarks

At overclocking at new 990FX chipset motherboard I was very curious, specially if I was available to only a beta BIOS. Crosshair IV series and no only it unpleasant strange, when the load under certain circumstances, the basic hopping bus clock from 200 MHz to 202 MHz and it could cause instability in the limit bars. If you was set for example 240 MHz bus and the 17x CPU multiplier, then you flew in the load frequency between 4080 MHz to 4114 MHz. It is more than 30 MHz CPU at maximum CPU clock is slightly already value what causes instability.
To my amazing, here I did not similary produce and holds it, what it really set! Perfect, so it should look, Shamino sure doing it job very well. Too bad that is not available yet Bulldozer CPU, I would wonder at his options at this board. Thuban have also led to great and I managed stable in 64-bit system just beyond 4200 MHz - exctly 4214 MHz.



It should not be a problem with the stability of the memory frequency 2000 MHz.And I got up to 2062 MHz with a timing of 8-9-8-24-37-1T at 1.675V voltage relaxed mind.



Lets time to benchmarks result
So I tested the basic setup with AMD Turbocore enabled and with beta BIOS. RAM, I was set at 1600 MHz, 8-8-8-24-37-1T. In the case of OC setting, processor running at 4214 MHz, 1926 MHz RAM with 8-9-8-24-37-1T and uncore at 2890 MHz.























So, from my point of view is this board very good, I had no problems with using, layout looks good and performance is simillary as C4E. But for this board will be better Bulldozer. THubans are at the limits. Whats better, seems potential of overclocking limit for RAMs and NB a bit. And VRM setings is new great for extreme values of stability.

Heh, FlanK3rs AWARD