> On Thu, May 22, 2025 at 05:19:10PM +0000, mg-forum via Freedos-user wrote: >Hello, > >I have installed FreeDOS 1.4 to a 16 GB USB 2.0 stick. I booted it on AMD >FX-4100 machine. It was working OK, but I was unable to make sound card work. >Probably the Azalia sound card is too new hardware for VSBHDA. So I tried to >boot the stick on the AsRock ION 330 machine. The sound is working there, but >I suffer much harder problem on it which I cannot solve. > >The USB 2.0 seems to be working in USB 1.1 mode, it is very slow. Is there >some way to overcome the issue? I was looking into BIOS and USB 2.0 support is >enabled.
I'll take a gander at this one, since nobody has answered. (Probably awaiting for somebody to answer with a dumb answer such as me ;-) When allowing the BIOS provide the driver for the USB device, several items to note: 1) Depending on age of platform, BIOS will likely will be using an 8 bit or 16 bit driver, instead of an operating system 32 bit driver and most times quicker and faster, although the BIOS is usually assembly language written and using less resources. 2) The BIOS driver may be emulating a driver, and not a specifically written optimized driver for your device; and/or using a compatibility layer/mode driver for which the USB device recognizes and works with as a fallback method. 3) Since USB is usually backwards compatible, and again depending upon age of platform; BIOS and generic USB layer maybe configured only for USB-1 speeds, or if lucky USB-2 speeds, versus having USB-2/USB-3 speeds. Also, check your USB cords, as cord length, quality of copper and condition (eg. broken) cords can all significantly affect USB speeds and quality of USB connection. As they say, (if your BIOS recognizes and/or boots from USB media) be content with what you have! It may not be fast, quick or spiffy, but most popular 440BX motherboards never could boot from USB media. Roger
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