Above you can see the SPD readings from CPU-Z.


With XMP enabled in the BIOS we tested the sticks at 2800 MHz. It is worth noting that the to reach this speed, the baseclock frequency of the CPU required adjusting to 125MHz which gave us a very mild overclock on the CPU. We do not envisage any Haswell-E CPU struggling with this however it may affect higher end overclocks as rather than 'round' figures being achieved with simple CPU multiplier adjustments, you will get uneven overclocks due to the baseclock frequency being changed from 100MHz to 125MHz. Not a negative by any means but worthy of note.

The kit was fully stable at 2800MHz CAS16 which we verified with a number of Prime95 runs.


Not content with this speed we pushed the kit a little further however this meant raising the voltage to 1.3v and lowering the latency a little to CAS17. Reaching 3000MHz is no mean feat so we were pleased with the results however we have seen a lessor specced kit hit the same frequency with lower latencies so we were hoping for a little better.