Re: Adding USB2.0 to 'older' PC
- From: "Alex Fraser" <me@xxxxxxxxxxx>
- Date: Sun, 8 Jan 2006 16:31:50 -0000
"thoss" <usenet@xxxxxxxxxxxxxx> wrote in message
news:7yM+nXAD1OwDFwyY@xxxxxxxxxxxxxxxxx
> In article <fgh0s15i002gqph0db7qvb4mdok5dfmqoc@xxxxxxx>, Boss Hog
> <boss.hog.news@xxxxxxxxxxxxxxxxxxxx> writes
> >Is it possible to add USB2.0 to a PC that currently only has USB1.1
> >ports?
> >
> >I understand a USB2.0 PCI card is what is required...?
> >
> Yes. But it won't give you full USB 2.0 speed; the PCI bus just isn't
> fast enough, I believe. But it should be faster than USB 1.1.
If the PC doesn't have USB 2, I think it is quite possible the CPU will run
out of steam before the PCI bus when dealing with USB devices, assuming
there is no other significant PCI traffic (eg gigabit Ethernet or HDD
controller).
In terms of peak transfer rate, an ordinary (32 bit, 33MHz) PCI bus
(1.07Gbit/s) is more than twice as fast as High Speed USB (480Mbit/s). This
fact alone proves nothing, but gives some indication.
Alex
.
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- Re: Adding USB2.0 to 'older' PC
- From: thoss
- Re: Adding USB2.0 to 'older' PC
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