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PostPosted: Thu May 24, 2012 6:30 pm 
Sophomore Member

Joined: Sun Jan 29, 2006 5:38 am
Posts: 129
Location: Poland, Gdansk
Hi thinkpads fans,

i need install internal 3h/hspda modem.

my plan is 8)
buy simply usb modem, use his small mainboard with sim card and hide it in chassis t43

but :idea:

i looking where i can plug it in free not used usb ports
i have 2 ports on side laptop, 4 in doc
but 82801FBM have 8 ports

anyone know where i can solder additional usb devices?


i have modem in pcmcia, but antene is too big. I can hide antene inside laptop

T23, T40, T43p, T43p, T61p

Total solution for absolutely ZERO oscillatory noise in t4x - 100% working

PostPosted: Fri May 25, 2012 6:24 am 
Junior Member
Junior Member

Joined: Tue Dec 01, 2009 5:31 pm
Posts: 384
Location: Princeton, New Jersey
Hi there, I know your not a native English speaker but I think you have everyone confused. Do you want to solder an extra usb port on the motherboard?


PostPosted: Fri May 25, 2012 11:23 am 
Freshman Member

Joined: Fri May 11, 2012 5:20 pm
Posts: 100
Location: Kent, WA
Burns234 - The way I read it, he's saying that the chipset supports eight USB ports, but only six are populated. He wants to wire up a USB modem internally on the machine and use one of the two unpopulated USB lines to connect it. What he wants to know is where the two unused USB lines are so that he can solder the connections for his new modem.

AdaSch - If I had to take a guess, I'd say to check out the docking connector, but I've never seen a pinout for it, so you'll be doing some fun circuit tracing.

Work: Thinkpad T410 / i5-650 / 8GB / 500GB / Win7 Ent x64
Personal: T60 (4:3) / T7200 / 4GB / 500GB / Ubuntu 12.04 <scrap built>
Retired: 570E, T20, T21, T23, T30, T40, T42, T43

PostPosted: Fri May 25, 2012 12:03 pm 
Senior ThinkPadder
Senior ThinkPadder

Joined: Sun Feb 25, 2007 11:28 am
Posts: 12895
Location: Albrightsville, Pennsylvania
The last thing I'd ever contemplate doing on a T43/p is adding anything that stresses the already overloaded SouthBridge chip even more.

Your machine, your call.

...Knowledge is a deadly friend when no one sets the rules...(King Crimson)


George (your grouchy retired FlexView farmer)

Glorified typewriter collecting SSDI: A31p

Abused daily: R60F, R500F, T43pSF, T60, T61

For sale: T61p (4:3)

PostPosted: Fri May 25, 2012 12:38 pm 
Senior ThinkPadder
Senior ThinkPadder

Joined: Sat Oct 29, 2005 6:20 am
Posts: 5775
Location: Israel
The dock has a USB hub, so it actually utilizes only one port on the southbridge.

One goes to the optional Bluetooth module, one to the fingerprint reader.

This should leave 3 ports available, but just because the chipset supports them does not necessarily mean that they were actually implemented on this particular board...

Current: X220 4291-4BG, T410 2537-R46, T60 1952-F76, T60 2007-QPG, T42 2373-F7G, X61 7673-V2V
Collectibles: X32 w/ IPS Screen, A31p w/ Ultrabay Numpad
Past: Z61t 9440-A23, T60 2623-D3U, X32 2884-M5U

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