Yes, you will need the battery to use the cache.  Without cache, you will have wasted your money on the H700. The H700 will need to go in the x8 PCIe slot on riser 2. If you can't see the drives through the new H700, you will also need a cable to go from the backplane to the controller (8087) ... the documentation isn't very clear, but it looks like there is a motherboard connector next to the SAS 6/iR PCIe slot that would connect the drives, which will probably not work if using the H700, so it would need its own cable.
I have a PowerEdge R310 with a SAS 6/iR controller. I want to have an H700 controller on the server. Dell sent me an H700 card with what I'm assuming is the 512 MB NVRAM cache attached. But they also sent me a battery. [IMAGE] [IMAGE] The longer wire looks like it plugs into the controller and then one of either the battery or the RAM module. Should I be using this battery at all? I've seen pictures of this battery where it has some plastic arms attached to it. This would allow the battery to attach to the controller. I don't have these arms. The shorter red and black wire looks like it plugs into the controller and a spot on the motherboard labelled HD_ACT_CARD. Is this correct? Should I be removing the SAS 6/iR controller? I think the SAS 6/iR controller is this one with the blue plastic: [IMAGE] The instructions that came with the H700 tell you next to nothing. Is there a different manual or guide I should be referring to?  Thanks!
Replacing a SAS 6/iR with an H700 on an R310