usb compatibility

[bazzer55]

hi good folks! just posted this one on "cabling" but brike advises that i'd be better here..
i have just been given a nice little case with usb1 on the front panel. however, the m/board i have fitted has only usb2 including the additional m/board connector. any way i can use usb2 to connect the front panel usb1 ? i know nothing of the pin-outs and how they compare. silly? well, a resounding "no" will do fine. thanks

 

[micker377]

Pin-outs would be the same. However, the USB 2.0 is supposedly shielded better for the higher speed. You must be sure that the pin-outs are correct (wouldn't want to short the USB ports on the mother board). If you are using XP, you can hook them up to the motherboard and plug a USB 2.0 flash stick. If every thing is OK - no problem. If it says: "You would get better results with a 2.0 peripheral", it's only running at 1.1.

 

[bazzer55]

micker377...this sounds encouraging; i'll settle for 1.1. i appear to have less connectors than usb2 however. this is what the manual says for the board:
pin 1; vreg_fp_usbpwro front panel usb power
- 2; vreg_fp_usbpwro front panel usb power
- 3; usb_fp_po- usb port 0 negative signal
- 4; usb_fp_p1- usb port 1 negative signal
- 5; usb_fp_p0+ usb port 0 positive signal
- 6; usb_fp_p1+ usb port 1 positive signal
- 7; gnd gnd
- 8; gnd gnd
- 9; key no pin
- 10; usb_fp_0co overcurrent signal
-------

for the front panel connectors; (vcc, gnd, -d, +d) X2

can i assume that pin 10 is the odd one out? and go ahead?
if i lose the board option, so be it, but am i likely to blow the externals as well (sweat!)
by the by, the board is an ECS P4VMM2

 

[franklin97355]

You will probably have to pull the connectors in the front panel connector and rearrange them so they match the pins on the motherboard.

 

[micker377]

- 1; vreg_fp_usbpwro front panel usb power(+ 12 v.)USB0
- 2; vreg_fp_usbpwro front panel usb power(+ 12 v.)USB1
- 3; usb_fp_po- usb port 0 negative signal
- 4; usb_fp_p1- usb port 1 negative signal
- 5; usb_fp_p0+ usb port 0 positive signal
- 6; usb_fp_p1+ usb port 1 positive signal
- 7; gnd gnd
- 8; gnd gnd
- 9; key no pin
- 10; usb_fp_0co overcurrent signal

So far, I never blew a port - front ports just didn't work. Only worry is 12 v. and ground. Do you have individual wire plugs, 2 four or five connection plugs, or one 9 connection plug from "box"?

 

[bazzer55]

franklin97355...front panel connectors for usb/firewire/mic/phones are all in one totally sealed piece of sturdy plastic! inaccessible.

micker377...sorry, probably confused you with description. i have 8 single connectors for the board marked as above. there is no vcc0 or vcc1...is this critical?
by the way, thanks to both for your input.

 

[bazzer55]

update: firstly, the writing on the vcc conns. is so small that i failed to note that they read; 1 & 2, so that was sorted. hooked everything up and hey presto! i have two more usb2 front panel options. they don't care whether i use 1.1 flash drive or 2. tested a driver file transfer (30meg)with usb2 drive. no doubt by speed that its getting the full treatment. still slight worry about the pin 10 overvoltage protection though.
thanks again for explanations. i would never have risked it without the benefit of you guys' experience.