They are great on older systems that suffer from low bandwidth aka SATA SATA II but there is a caveat, unless the RAID controller is placed in the first slot next to the CPU you are pretty much wasting your time trying to increase R/W speeds, if you are lucky enough to have a modern board with 3 PCIe slots and the first x16 slot is filled with a GPU and the second x8 slot is filled with another GPU in crossfire or SLI for you NVIDIA fans then you are only left with a x4 slot for your RAID controller, that's no good. What i am getting at is PCIe based RAID controllers are not intended to be used in systems that also use a dedicated GPU, a PCIe based RAID controller was designed for all intents and purposes to be placed in the first slot closest to the CPU so before you even consider purchasing a PCIe based RAID controller you should just upgrade the motherboard to SATA III and leave the PCIe x16 and x8 slot open for your GPU/s, just my $.02
About them PCIe based RAID Controllers..
- Thread starter gman97005
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