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Most likely the motherboard is dying slowly. Usually when devices start dropping off this is the reason. If it isn't in device manager, then it's usually because the motherboard isn't recognizing it as being plugged in. So unless the device is broken, you are most likely looking at replacing your machine. The one way that is quick to figure this out is to download a copy of Ubuntu Linux for free, burn it to a disc, and start your computer with the disc in. Choose the option to try Ubuntu without installing. Once it has you to the desktop plug in your device and see if you can use it. If you can then it is a Windows issue, if you can't, most likely the motherboard is dying. Let me know if this helped.
There are several PCMCIA USB ports available, I have an IBM T20 and I bought a Belkin USB 2.0 card from ebay for under $20, it has 2 USB ports, (and I've seen them with up to 4) and most electronics store should have them. They also come with Firewire ports if you choose to go that route
Here is what you can do to refresh the USB ports: 1. Right click MY COMPUTER 2. Select PROPERTIES 3. Select HARDWARE 4. Select DEVICE MANAGER 5. Select UNIVERSAL SERIAL BUS CONTROLLERS 6. Right click on each USB CONTROLLER and select Uninstall 7. Uninstall all entries 8. Reboot your computer 9. As your computer re-boots it will reinstall all USB connections it detects THEN, when all other USB items have been configured and connected by the system, your USB devices should be connected and working. If I could be of further assistance, let me know. If this helps or solves the issue, please rate it. Thanks, Joe
The T20 has a modem built in, Look on the side, not the back. Look for the port with the phone icon. It will have only 2 center contacts, vs the ethernet port which is a bit wider, and will have 8 contacts.
You can get a PCMCIA adapter with 4 USB v.2.0 slots on eBay. It requires power from the USB port on the laptop, but the pigtail connector is included. Works like a charm! Comes from China just like everything else in this country.
There are effectively 2 ports on the USB controller chip, Though that particular model only is connected to one port.
If you need additional ports, you can get a small 4 port USB hub. Or get a PC Card with extra ports. Hub is less expensive.
Wow, a lot of information but I'm unclear as to what you are trying to do.
Are you connecting the T20 directly to the T40 using a cat5 cable and then trying to access the internet on the T20 via the modem?
Connecting the two computer together using a normal cat5 will not work, you need to use a crossover cable otherwise you are connecting the send to the send and the receive to the receive.
You can also use a hub, a switch or a router if you have any of those on hand.
As for the modem, I suggest you unplug the telephone line from the modem and plug it into a phone and see if you can hear a dial tone. If you cannot hear a tone either the extension is bad (replace) or you outlet is defective. If you can hear a tone, the modem card may be defective.
So, what is it you want to do?
The hard drive on a T20 is in a slot on the left side of the unit, and it's cover can be taken off by removing 1 screw on the bottom just under the sound ports.
Hope that helps.