My memory has lifetime warranty and one of the modules from my PC2-8500 kit failed. However because the modules are obsolete the closest replacement they can offer is a PC2-6400 kit.
Corsair Vengence TWIN2X4096-8500C5D
4GB kit PC2-8500 (1066MHz) 5-5-5-24 2.1V
for
Corsair XMS TWIN2X4096-6400C5DHX
4GB kit PC2-6400 (800MHz) 5-5-5-15 1.8V
I believe that both models have the same heat spreader. Is this a reasonable replacement or should I seek some kind of refund and buy another brand of PC2-8500 modules?