Attention: The UEFITool should not be used, if the opened BIOS contains one or more listed Pad Files.NVM stands as an acronym for Non-Volatile Memory, which is used in SSDs.
While Advanced Host Controller Interface (AHCI) interface has the benefit of legacy software compatibility, it does not deliver optimal performance when an SSD is connected via PCI Express bus. This is because AHCI was developed back at the time when the purpose of a host bus adapter (HBA) in a system was to connect the CPUmemory subsystem with a much slower storage subsystem based on rotating magnetic media. Such an interface has some inherent inefficiencies when applied to SSD devices, which behave much more like DRAM than like spinning media.3 NVMe has been designed from the ground up, capitalizing on the low latency and parallelism of PCI Express SSDs, and fulfilling the parallelism of contemporary CPUs, platforms and applications. At a high level, the basic advantages of NVMe over AHCI relate to its ability to exploit parallelism in host hardware and software, manifested by differences in depth of command queues, interrupts processing, the number of uncacheable register accesses etc., resulting in various performance improvements.324:p. The table below summarizes high-level differences between the basic NVMe and AHCI device interfaces: Which users will benefit from an NVMe supporting SSD Everything seems to be prepared for a drastical SSD performance boost by the upcoming new data transfer standard named NVMe: The latest Windows Operating Systems from Win8.1 up natively do support NVMe. For Win7 and Server 2008 R2 users I recommend to read the start post of this thread. Ami Aptio Uefi Mmtool Full NVMe SupportNearly all mainboard manufacturers are meanwhile offering new BIOS versions with full NVMe support for their mainboards with an Intel 9-Series or X99 Chipset. Many consumer SSDs with NVMe support are already available or will be available soon. There is no doubt, that users with an up-to-date mainboard, whose original BIOS contains the required NVMe modules, will benefit from the performance boost initiated by a new NVMe supporting SSD. But: What about the Intel 6-8 Chipset Series mainboards without such NVMe support given by the mainboard manufacturer Is it possible to give them the required NVMe support by modding the BIOS If yes, which modules have to be inserted and how has it to be done These were the main questions, when I started this thread in April 2015. That is why I have completely updated the below part of this start post. Since February 2017 we know, that the method works for AMD Chipset systems as well (look here for the report written by our Forum member AntiBear). Ami Aptio Uefi Mmtool How To Get FullGuide about how to get full NVMe support (valid for all IntelAMD chipset systems with an AMI UEFI BIOS) (last updated: 08282020) Changelog: Added: 1. Warning about Pad-files, which may have been removed or added by the used BIOS modding tool This is what you should know: It is no problem to get a PCIe or M.2 connected NVMe SSD working with any Intel Chipset system from 6-Series up without modifying the mainboard BIOS, if a) the NVMe SSD will be used for the storage of data (as drive D:, E: etc.) and b) an appropriate NVMe driver is present within the Operating System (either natively or loadedintegrated), but the usage of such SSD as bootable system drive C: (incl. Note: Some NVMe SSDs like Samsungs 950 Pro SSD are natively bootable in LEGACY mode (CSM and loading of Option ROMs has to be enabled within the BIOS), because their Controller chip contains its own NVMe supporting Option ROM module. These are the best pre-conditions for a successful implementation and configuration of an NVMe SSD as bootable system drive: The desired OS should be Win10 (due to its native NVMe support). The mainboard BIOS should offer the required UEFI boot settings. It should be possible to get a modded BIOS successfully flashed into the systems BIOS chip. The on-board Intel SATA Controller should not been set to RAID mode within the BIOS. Tip: Before you start with the preparations, I recommend to read this report written by our Forum member Paulos7. Alternative methods to use an NVMe SSD as bootable drive with older systems (no BIOS modding required): Clover-EFI Bootloader Method (the related guide written by our Forum member Nyctophilia can be found here ) DUET-USB Boot Method (the related guides written by our Forum members noInk resp. These are the alternatives: a) AMIs Aptio UEFI MMTool (best choice for AMI Aptio IV BIOSes: v4.50.0.23) This tool is not free available. Ami Aptio Uefi Mmtool Download The DesiredTips: Do a Google search for MMTool Aptio 4.50.0023, join the listed TweakTown site, scroll down to the AMI (UEFI) BIOS Tools section and download the desired tool.
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