André wrote:
> André, PE1PQX formuleerde op vrijdag :
>> Hi,
>>
>> thank you for reading this.
>>
>> I have a MSI KT6 Delta FIRS motherboard (MS-6590 v2.0) with latest
>> BIOS and drivers (OS here is WinXP Pro, SP2)
>> When I plug in a 1 Gbyte USB memorystick or my 1 GByte MP3 player, the
>> datarate seems to drop down.
>> Example: copy 20 MByte to the USB stick and/or MP3 player takes about
>> a minute, wile it should be more faster.
>>
>> Does anyone have a clue??
>>
>> The MP3 player is an 'Creative Muvo TX USB 2.0', and the USB
>> memorystick is an 'PEAK III USB 2.0 FLASH DRIVE'
>>
>> Thanks all,
>> André
>
> No one knows?!?!?!
>
> Please....
>
>
Well, if we had a dollar for every USB device that didn't work right,
we'd be millionaires.
These are some basic tools for listing hardware:
Everest Home Edition (Lavalys - payware versions also available)
Provides basic views of the presence of hardware.
If it wasn't for this, I'd have to use Linux :-)
http://www.majorgeeks.com/download.php?det=4181
UVCView (Microsoft) - shows stuff plugged to USB ports
http://www.microsoft.com/whdc/device...VCViewdwn.mspx
Device Manager - built into Windows - shows hardware entries/drivers used
And these are some links for debugging USB problems:
http://www.usbman.com/USB%202%20News.htm
The first step is checking for an "Enhanced" entry in Device Manager.
In this example, the "NEC PCI to USB Enhanced Host Controller", is
an example of an entry created by a PCI card with a NEC USB2 chip on it.
Having an Enhanced entry in Device Manager, with a Microsoft driver
attached to it, is one part of getting the full performance.
http://www.usbman.com/Guides/checking_for_usb_2.htm
Using at least WinXP Server Pack 1 (SP1), should have given you a
standard USB2 driver for your card.
And this procedure, removing USB entries while in Safe Mode, will
cause the OS to rediscover the hardware and reinstall the drivers
available in the OS, on the next reboot.
http://www.usbman.com/Guides/Cleanup...afe%20Mode.htm
Try that stuff first, and see how it goes.
And note that not all flash memory devices, have the same level of
performance. It wasn't that long ago, that some of them could
barely do 1MB/sec. Good ones now, can do 20MB/sec. But they're not
all good ones.
Paul