Usb2 ['converted' to USB 1?]

The problem is new to me and the tech service who build up my PC has no answer : I have a brand new PC (no brand ) but ASUS P5LD2 motherboard ; it is suposed to come with USB 2 ports and it worked that way for months ; however without any notice , the USB 2 beacame USB1 and i do not know how to come back to the previous configuration ; unplugging the hardware plugged in the USB ports does not help ; the same problem happens on TWO different configurations (dooble boot ) ;any idea ? Thanks in advance OLIVIER GEBUHRER

 

Hello OLIVIER,

Have you tried uninstalling the USB root hubs in Device Manager and then re booting and having XP reload them?

I'm assuming you're using XP.

USB 1.1 was pre XP SP2 and with the advent of SP2, hardware that was v2. capable ran at the new speed.

General USB troubleshooting guide from MS: http://support.microsoft.com/default.aspx?scid=kb;en-us;310575

Regards - Charles

 

Usb2 Again

I wish also to thank cheerfully those who already answered in a detailed way ; you are wonderfull , I will answer your questions later today ; I did not expext suxh quick answers ; you are really very nice !
OLIVIER GEBUHRER

 

News About Usb2

I am respectfull for TonyT and charlesvar ; both have approximated the situation which apparently was worse as I thought ; so here is how the probleme was solved , of course using your advices as guidelines ; first of all , as indicated by TonyT , I browsed into the BIOS and ..... discovered to my stupefaction that "usb2" was DISABLED (enhanced controllers , that is !!!) ; I said my stupefaction because I have no idea of whom on the hell did change the default settings; nobody but me dives into the depths of the PC ; in this case , no wonder ! But the step which restablished the ability of the motherboard to accept USB2 was FAR from enough ; I had formerly updated the chipset ; but I did it again just to be sure . It was still not enough : as you are "kindly " told by Intel, "updating chipset does not install any drivers" !!!!! ; browsing into Device manager and there into USB controllers, I had to UPDATE DRIVERS MANUALLY that is clicking on "update driver" and then letting windows look for an eventual update , FOR EACH USB CONTROLLER OF THE ROOT HUB !!!!!!!!!
That's all fine now ! Took me an afternoon !!!! Of course prior to these manipulations I unplugged all peripherics and replugged them with the hope, the drivers will adjust themselves automatically as they did the first time when I plugged them in for the first time into my PC ; no way !!!!!!
I suspect that my welcomed correspondants will just laugh at the story but really there should be a guidebook devoted to troubleshooting controllers ; it is unthinkable , even for a moderately (but still...) experimented user of a PC , that a build-in USB2 suddenly will transform itself into USB1( I highly suspect that this came through another install of Windows ; what remains unsolved is how the motherboard "decided" not to enable enhanced controllers); and the itinerary I had to go through is not something that a beginner will know ; I must say that not even a very experimented IT will know!!!! So far , so good . Best regards to all OLIVIER GEBUHRER

 

Thanks Olivier for the denouement

Regard - Charles

 

Tony T Is A Magician!

Thanks Tony T ; you guessed right :there was a power breakdown in my condo and probably that affected my settings in the BIOS of the maotherboard ; no need to look for "mysterious reasons " . Manay many thanks again !!! OLIVIER GEBUHRER