Workshop – Fitting a PCIe SSD with your existing hardware
PCIe is a downward-compatible interface technology with standardized slots, but the chaos with interface cards has not gone away. If you want to use fast mass storage to upgrade older systems without UEFI BIOS and NVMe support, you will certainly benefit from the advantages of the Peripheral Component Interconnect Express (PCIe) bus. However, before you buy expensive components, it makes sense to investigate the specifications; otherwise, you may end up spending several hundred dollars on equipment you can't use.
Understanding PCIe
PCIe [1] is a standard for extensions in personal computers that has been in use for around 15 years, and by now, it has completely replaced its predecessors PCI, PCI-X, and AGP.
The PCIe bus thoroughly eliminates many of the problems of its predecessors. Unlike the PCI bus and its variations, PCIe works with serial connections. Point-to-point connections are created between the components, which leads to significantly higher data transfer rates with significantly less overhead, because slow devices on the bus cannot slow down the faster devices (Table 1).
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