Geil also supplied us with two kits for our testing. The following are their technical specifications:

As always, unlike other manufacturers, Geil set itself apart by packaging memory kits in compact cardboard boxes. Although pretty much the same externally, there is a slight difference between how the two modules are placed within the packaging. The PC2-5400 modules come packaged in cardboard while the PC2-6400 comes packaged in plastic. Both kits have the same heatspreaders and have the same orange color. The labeling on the packages are only different in order to distinguish the model numbers between the two kits.

There is also a slight discrepancy in the voltage information. While the boxes’ label says a medium value of 2.1 Volts is required, the website advises using 2.3-2.4Volts. It is also important to note the low latency value of the PC-5400 modules, which are at 3-3-3-4.

The Geil kits’ overlocking results turn out to be quite interesting. Both models are sensitive to voltage and end up requiring the same amount, 2.45V. Their maximum frequencies also turn out to be quite similar to each other at around 500 MHz. The most interesting aspect of the results is the overclock we see from the Geil PC2-5400 Ultra, which ends up having a maximum frequency 54.6% higher than its default value. The PC2-6400 module had a smaller overclock of 23.7%, and its maximum frequency ended up being less than the PC2-5400 Ultra.