Re: Firewire 1394b (800 Mbps) - where is the driver?
From: whitehawk82 (whitehawk82.16mmnu_at_mail.mcse.ms)
Date: 05/21/04
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Date: Fri, 21 May 2004 11:20:59 -0500
MalHenry wrote:
> *I just installed the Adaptec FireConnect 8300 PCI card. (This is
> Texas Instruments OHCI Compliant IEEE 1394 Host Adaptor). The card
> has both 1394 a (400 mbps) and 1394 b (800 mbps) ports. I am
> interested in the faster speed. Adaptec does not supply dri
> vers with the card and the Microsoft driver 5.1.2600.1106 seems to
> support only the slower 400 speed even when I connect to a device
> with the 1394b port. I got most of this info from the device
> manager.
> Can I get a better driver? When is Microsoft going to come out with
> the 1394 b driver?
>
> Thanks. *
Windows XP does not require a new driver to operate at 1394b speeds,
trust me, I work at a company that makes USB and FireWire bridgeboards,
I have done extensive testing with 1394b. The only thing you must do is
make sure your chipset in whatever you are attaching is a 1394b
chipset. Right now they are not very popular, we have not made many of
them and they dont sell very well, probably because people do not
realize what they are buying. When you connnect a 400Mbps port to an
800Mbps port you will only run at 400Mbps, same goes for
daisy-chaining, do not mix and match 400 and 800Mbps devices as they
will operate at the slower speed. Most of the time you can tell if your
device is 400 or 800 by the port. The new 9 pin, so called 'beta' ports
are required for 1394b, if you only have the standard 6-pin the device
most likely is not 1394b. The chipset may be 1394b however with a 6-pin
port it will run at 400Mbps. Also, if they put a 400Mbps chipset and
used a 9 pin this would be totally useless and not very cost effective,
those connectors are expensive and short-handed. But back to my
original point. You do not need a new driver, if you have a 1394b card
and a true 1394b device, it will work.
A note on the uni-brain drivers, they are making money off of people
easily for their driver, it is not needed, they do include some nice
little diagnostic tools, but mainly they are ripping people off. Like
this morning I received an email telling me that XP SP2 will limit
FireWire back to 100Mbps, this would be against the original spec and
never happen, I could see them limiting to 400Mpbs but 100? Come on,
what a bunch of bull-****
-WhiteHawk82
-- whitehawk82 ------------------------------------------------------------------------ Posted via http://www.mcse.ms ------------------------------------------------------------------------ View this thread: http://www.mcse.ms/message657707.html
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