4 pin USB socket to 9 pin on Motherboard

[david.booth]

I am building my first pc,I want to install a 7 in 1 memory card reader
with floppy drive, but I have no onboard 4 pin usb hub for it. Can I
use one of the MANY 9 pin internal usb ports by lining up the volt,
ground , pos. etc. pins on the 4 pin with the correct pins on half of
one the larger usb 9 pin plugs? Any help would be greatly appreciated!
What`s the "extra" pin on the motherboard for? Thanks-

 

[old jon]

I am building my first pc,I want to install a 7 in 1 memory card reader
with floppy drive, but I have no onboard 4 pin usb hub for it. Can I
use one of the MANY 9 pin internal usb ports by lining up the volt,
ground , pos. etc. pins on the 4 pin with the correct pins on half of
one the larger usb 9 pin plugs? Any help would be greatly appreciated!
What`s the "extra" pin on the motherboard for? Thanks-

Check your email DB, I`ve sent you the pinout. best wishes..OJ

 

[SMS]

I am building my first pc,I want to install a 7 in 1 memory card reader
with floppy drive, but I have no onboard 4 pin usb hub for it. Can I
use one of the MANY 9 pin internal usb ports by lining up the volt,
ground , pos. etc. pins on the 4 pin with the correct pins on half of
one the larger usb 9 pin plugs? Any help would be greatly appreciated!
What`s the "extra" pin on the motherboard for? Thanks-

Most of those internal readers come with the 0.1" space connectors to
attach to the header on the motherboard. I.e., see
"http://www.computergate.com/products/item.cfm?prodcd=IFM71BE" (beige)
and
"http://www.computergate.com/products/item.cfm?prodcd=IFM71BK" (black,
despite the picture)

The ninth pin is a no-connect. It's there, along with the removed pin
across from it, to key connectors that are supplied with the motherboard
for a PCI card edge bracket with USB connectors on it.

But sure, you could cut off the USB connector and solder up a cable to
connect to the motherboard header.

 

[SMS]

Most of those internal readers come with the 0.1" space connectors to
attach to the header on the motherboard. I.e., see
"http://www.computergate.com/products/item.cfm?prodcd=IFM71BE" (beige)
and
"http://www.computergate.com/products/item.cfm?prodcd=IFM71BK" (black,
despite the picture)

The ninth pin is a no-connect. It's there, along with the removed pin
across from it, to key connectors that are supplied with the motherboard
for a PCI card edge bracket with USB connectors on it.

Also, beware that different motherboards use different pinouts for the
ten pin header (with one pin removed). The internal card reader I
bought, came with a sheet of paper that detailed the different pinouts
on different brands of motherboards, and the connectors were set up so
you could use it on any motherboard (it was not a single four pin
connector, it was one 3 pin and one 1 pin which you could connect in
ways to accomodate any motherboard). Check your motherboard manual for
the pinout.

 

[larry moe 'n curly]

Also, beware that different motherboards use different
pinouts for the ten pin header (with one pin removed).

In my case, connecting the 5-pin socket to that pin caused my USB
bracket to get really hot because the last pin wasn't a ground as
expected but was the current sense pin. IOW it was connected directly
to +5V, and until I removed the wire going to it, I had a short between
+5V and ground.

 

[SMS]

SMS wrote:




In my case, connecting the 5-pin socket to that pin caused my USB
bracket to get really hot because the last pin wasn't a ground as
expected but was the current sense pin. IOW it was connected directly
to +5V, and until I removed the wire going to it, I had a short between
+5V and ground.

On my Antec case, the cables from the front USB and Firewire ports were
designed so you could use them on any motherboard, but IIRC, the cables
from the card reader were 5 pin, and you had to swap pins in the housing
(which is not too hard) in order to make it usable on the less common
pinouts. It fit my Asus board without modification.