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We are using the Asus P8Z77-V motherboard to test today's memory kit. It supports RAM from many manufacturers and gives us a large amount of flexibility to tinker with memory multiplier, base clock and timings settings.
ADATA makes use of an XMP-2133 profile which automatically configured the XPG kit's frequency, timings and voltage settings. Everything was set correctly with our motherboard, but we would recommend that you check the settings to avoid system instability.
CPU-Z highlights the memory's various frequency and timings settings. The XMP profile worked perfectly, loading a 2133MHz 10-11-11-30-1T configuration instantaneously.
Our system's CPU-Z validation can be found here.
We kept the memory voltage at a BIOS setting of 1.650V and relaxed the timings to 12-12-12-30-2T before aiming to improve the memory frequency. Increasing the motherboard’s ‘DRAM Current Capability’ to 130% and ‘DRAM Power Phase Control’ to Extreme allowed us to push the memory as far as possible.
The 2,200MHz setting proved too easy for ADATA's XPG memory kit; our system managed to successfully post all of the way up to a frequency of 2400MHz using the 24x memory multiplier.
We could actually post and boot into Windows using a 2448MHz frequency via a 102MHz base clock, but, upon running benchmarks and stress tests, this setting proved to be unstable.
1.700V was required to maintain absolute stability at a memory frequency of 2448MHz. Increasing the base clock to 103MHz in search of a 2472MHz memory frequency proved a step too far.
A 15% speed increase from a small – 50mV – voltage bump is commendable for a large-capacity, high-speed memory kit.
With our stable overclock frequency achieved, it was time to see how tight we could get the timings.
We couldn't push below the 12-12-12-30-2T timings that we had already used to achieve our 2448MHz frequency overclock; the kit simply wasn't offering stability with any lower values.
We were pleased to break the 2400MHz barrier with ADATA's XPG Xtreme Series memory kit. A final overclock of 2448MHz with 12-12-12-30-2T timings is impressive, even if the configuration did require a small voltage increase.
You can view our overclocked CPU-Z validation here.
awesome, thats a good overclock on that, those are large capacity sticks.
Good kits these, my mate bought one a month ago. good size too, no oversized heatspreader which helps.