Good looking pair of sticks you got there.
By any chance, did you try to see how high they could go with 2.1v and 5-5-5 timings?
HP LP2065 20.1" S-IPS LCD | Lian Li PC-7077A case w/window | Asus P5Q Deluxe | Intel Q9650 4.2GHz - 1.33v
4GB G.Skill PI PC2-8800 | Asus HD 4870X2 | Ultra X3 1KW PSU | X-Fi Fatal1ty w/ Front Panel| Logitech Z-680 THX 5.1 Speakers
EK Supreme | EK FC-4870X2 block | Enzotech SNBW-SLI | Swiftech MCW30 | DDC-2 w/ XSPC Top | Laing D5 | Thermochill PA120.3 | Weapon Heatercore