Overclocking

Bus frequency overclocking

For the following tests we started with the memory set to 1066 MHz with 8-8-8-24 timings at 1.65 Volt. To determine wether the system was stable or not we were using the CPU test of Futuremarks 3DMark 06. To enter the different setting we use both the BIOS as well as TurboV EVO from ASUS.

Regarding the bus clock we were able to reach 376 MHz stable in 3DMark06 on our ASUS Crosshair IV Extreme and with resonable voltages. 350 MHz where the max bootable from the BIOS, the last 26 Mhz were increased with TurboV EVO under windows. Even if this frequency is just amazing, it seems like our memory kit was limiting - unfortunately. As we weren't able to use a 2x DRAM ratio, the 2.66x ratio was running our 800 Mhz kit at 1'002 Mhz.

CPU Overclocking

For this test we kept the previous settings:

• NBFreq : 6 x 200 MHz
• HTFreq : 2 x 200 Mhz
• MemoryFreq : 2.66 x 200 Mhz @ 8-8-8-24, 1.68 V
• CPUFreq : 16 x 200 Mhz

In this test we also used TurboV EVO as well as the BIOS to do the overclocking.

The highest frequency which we reached stably was 4'362 MHz which is the limit for our Phenom II x6 1090T BE. Therefore we needed to provide the CPU with 1.5 Volt. To obtain overclocking results which are as comparable as possible we set northbridge and the HT multiplyer to 10. The memory frequency we tried to keep as close to 800 MHz as possible.