Asus A8N-Sli Deluxe and Overclocking

MrBored

Newcomer
I would like to know if anyone has one and has tried overclocking it yet? I got one fairly recently and I'm experiencing some strange behavour with regards to the memory speed and fsb. There seems to be some kind of automatic divider coming into effect when ever I push the memory past around 230 mhz ( DDR 460 ). It halves the memory speed, i.e. 275mhz cpu frequency ( as the bios calls it ) will result in a memory speed of 137 ( DDR 275 ). I'm using Sisoft sandra to get the information and the numbers also correlate to the drop in performance when benchmarking.

My memory is 1Gb (2x512mb) Corsair TwinX PC4400C25PT ( 2.5-4-4-8 ), so it should be able to handle that easily. I'm also dropping the cpu multiplier to avoid a cpu overclock, all the memory timings and voltages are left at auto as to keep the problem as isolated as possible.

Thanks.
 
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