X61: Where are all the USB 2.0 ports?

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flyingfishfinger · #1 Post by **flyingfishfinger** » Tue Dec 18, 2012 5:04 pm

Just curious:

- 3 are in regular connectors
- 1 each in the mini PCIe slots

...but hardware readouts indicate 8 USB 2.0 ports. Where are the other 3?

R

raket · #2 Post by **raket** » Tue Dec 18, 2012 5:34 pm

there's 4 usb ports in the docking station.

dr_st · #3 Post by **dr_st** » Wed Dec 19, 2012 4:14 am

No, that's not it. The docking station has a hub.

My count:

* 3 external ports
* miniPCIe (probably only the WWAN slot)
* Bluetooth
* Fingerprint reader
* SD Card reader
* 1 port to docking station hub

That is 8 by my count.

axur-delmeria · #4 Post by **axur-delmeria** » Wed Dec 19, 2012 9:15 am

The X61's SD card reader is a PCI device, not USB.
Otherwise, your count is correct.

twistero · #5 Post by **twistero** » Thu Dec 20, 2012 6:03 am

After checking the schematics, the 8 available USB ports go to:
Bluetooth
WWAN
Cardbus Controller (not sure why, but there it is. The controller chip is a Ricoh R5C847. Maybe it performs some other tasks as well?)
Fingerprint
USB ports * 3
Dock

dr_st · #6 Post by **dr_st** » Thu Dec 20, 2012 10:41 am

Looks like you are right:
http://www.ricoh.com/LSI/product_pcif/pcc/5c847/

It mentions that it can function as a USB-based ExpressCard controller. It probably allows an ExpressCard passive adapter to function.

So mystery is solved.

dmdsoftware · #7 Post by **dmdsoftware** » Mon Jan 07, 2013 6:11 pm

I always assumed the SD slot was over USB like I've seen it on other systems I owned. Otherwise, I would be able to boot off it

Oh well, mystery solved.

X61: Where are all the USB 2.0 ports?

X61: Where are all the USB 2.0 ports?

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