Greetings, everyone!\n\nThere's a mystery drive partition on my system. Can anyone please confirm\nwhat it's used for/by?\n\nI'm running a triple boot of Server x64 RC2, Vista x64 SP1 RC, and Vista\nx86, installed on two internal hard disk drives. These are SATA drives, but\nnot hybrids. They both have 8MB caches. (One is a Samsung HM250JI. The other\nis a Hitachi TravelStar 7K100.) I also have 1GB of Intel's Robson NAND.\n\nNow, in Disk Management, a 513MB (sic) FAT32 partition is there, called\nNVCACHE. It's listed as its own HDD, sandwiched between HDD 0 and HDD 1.\n\nSo, there are two possible explanations as far as I can see:\n\n1st candidate explanation: There's an Intel page that discusses Turbo\nMemory, which uses the "NVCACHE" term when describing its support for Vista\nReadyDrive and "T13 specification Command Handling," which I had assumed\napplied just to hybrid hard drives, not to regular HDDs.\n[URL]http://downloadmirror.intel.com/13232/ENG/ReleaseNotes.htm[/URL]\n\nThe other thing that's fishy is the 513MB cache size. Where'd the remaining\n511MB go if this system has a full 1GB Robson NAND? Was I gyped out of 512MB\nof NAND?\n\n2nd candidate explanation: This has something to do with the SATA caching\nfunctionality that I have enabled in the x86 partition. [See: Device Manager\n-> Disk Drives -> right-click on a SATA drive -> Properties -> Policies ->\nEnable Write Caching on the Disk -> Enable Advanced Performance.]\n\nIf that's the purpose, then the question is: Do I need to confine my use of\nthe SATA cache to one OS installation, or am I safe to enable this function\nin all of the OSes simultaneously? (Will overwrites by different OSes of each\nothers' caches destabilize the system or not?)\n\nThanks for sharing your insights.\na.k.a.