Test System

Initial Setup

Once installed into an ASUS P8P67 PRO, the Exceleram ERB300A really stands out, with the heatspreaders completely filling the socket from end to end.


Each stick in the Exceleram ERB300A kit measures in at 39.15 mm, from the top of the heatsink, down to the edge of the 240 pins that get plugged into the motherboard. This is a wee bit shorter than the G.SKill RipjawsX heatsink, so like the G.Skill kit, should fit with most aftermarket cooling solutions.


We can see the gap between the heatspreader and the Noctua NH-C14 cooler's bottom fan very clearly, with a fair bit of room left to spare. No problems with clearance here!


The Exceleram ERB300A features an XMP v1.2 profile table, with the JEDEC settings clocking in at 1333 MHz, with 9-9-9-24 timings using 1.5 V. Everything we found for timings was fairly standard, and should help the sticks boot in very nearly every motherboard.


The XMP profile is suited primarily for LGA1156/LGA1366, as when this kit hit the market, LGA1155 wasn't out yet. Now that over a year has passed since the Intel P67 Express launch, Z68 Express and X79 Express are out as well, and this XMP profile doesn't sit very well with every platform. However, with some manual settings, this can be overcome. Once again, tWCL was ultimately critical, as with the stock XMP profile setting a tWCL of 6, our Intel X79 Express platform was not stable, and could not even pass SuperPi 32M. However, once I manually set tWCL to 8, and left everything else alone, the sticks worked fine, without any issues. The stable timings I used for testing are shown in the MemTweakIT screenshot above.