USB2.0 boot
Posted: Thu Aug 02, 2007 1:16 am
Hi all,
I am trying to gather some information about why so many boards with USB 2.0 controllers, which support USB boot do it only in 1.1 or slower mode?
For example Bart PE installation takes 2:30 min. to load _the first stage_ (the white zebra bar) until the first black Microsoft screen with the moving green/blue bar is shown, when USB driver is loaded and speed becomes 2.0. Tests made on Gigabyte DS3P (rev.3.3 and F5 BIOS) and Abit AN7.
Now I start the same installation on Dell Inspiron 6000 laptop and it loads in...20 secs.
Gigabyte confirmed the fact after some communication and promised to fix it in future BIOS release...2.5 months ago, no updates as of yet.
I have tested many recent Dell systems and all they support full USB 2.0 boot, however the most of the recent motherboards do not support that. Why? Is it hard to implement?
Does anyone have more information or links/forums where I can get answers?
Here is a thread I started in 911cd forums about list of MBs supporting full speed boot:
http://www.911cd.net/forums//index.php?showtopic=19731
Not many answers, but I believe USB boot gets more and more popular and it's down to the costumers to raise the question before MB makers.
Regards,
ilko
I am trying to gather some information about why so many boards with USB 2.0 controllers, which support USB boot do it only in 1.1 or slower mode?
For example Bart PE installation takes 2:30 min. to load _the first stage_ (the white zebra bar) until the first black Microsoft screen with the moving green/blue bar is shown, when USB driver is loaded and speed becomes 2.0. Tests made on Gigabyte DS3P (rev.3.3 and F5 BIOS) and Abit AN7.
Now I start the same installation on Dell Inspiron 6000 laptop and it loads in...20 secs.
Gigabyte confirmed the fact after some communication and promised to fix it in future BIOS release...2.5 months ago, no updates as of yet.
I have tested many recent Dell systems and all they support full USB 2.0 boot, however the most of the recent motherboards do not support that. Why? Is it hard to implement?
Does anyone have more information or links/forums where I can get answers?
Here is a thread I started in 911cd forums about list of MBs supporting full speed boot:
http://www.911cd.net/forums//index.php?showtopic=19731
Not many answers, but I believe USB boot gets more and more popular and it's down to the costumers to raise the question before MB makers.
Regards,
ilko