![]() the Gigabyte Technology P55A-UD4 or P55A-UD6) have a manual switch (in BIOS) that can connect the USB 3.0 chip to the processor (instead of the PCH), which did provide full-speed PCI Express 2.0 connectivity even back then, but this meant using fewer PCI Express 2.0 lanes for the graphics card. On some old (2009–2010) Ibex Peak-based motherboards, the built-in USB 3.0 chipsets are connected by default via a 2.5 GT/s PCI Express lane of the PCH, which back then did not provide full PCI Express 2.0 speed (5 GT/s), so it did not provide enough bandwidth even for a single USB 3.0 port. ![]() Ī factor affecting the speed of USB storage devices (more evident with USB 3.0 devices, but also noticeable with USB 2.0 ones) is that the USB Mass Storage Bulk-Only Transfer (BOT) protocol drivers are generally slower than the USB Attached SCSI protocol (UAS) drivers. Various early USB 3.0 implementations widely used the NEC/ Renesas ♝72020x family of host controllers, which are known to require a firmware update to function properly with some devices. I am running HDTune on the USB 3.0 port right now and am getting just 32.9 MB/s max. ![]() USB 3.0 can reach speeds as high as 625 MB/s. Now that I think about it I have the same issue but on Win8. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |