I have a Compaq Deskpro: P550, 768 MB (max), 7 GB hard drive, 2 USB 1.0 ports, XP Home. I also have a Sony Ericsson W800 camera/phone that connects via USB to transfer pictures/music to/from. I've had the W800 about a year. At first the transfers went fine. Then more and more frequently File Manager said there was no device connected. Usually after several disconnects/reconnects the device came online. Last week I couldn't get it to connect at all and in the proces of trying the screen turned black except for "FF 301 keyboard error," and the system hangs. As far as I've been able to find out, this error is thrown when a key is stuck or for some other keyboard error. I have a new USB keyboard, which hasn't given me any problem. I swapped USB ports to no avail. I then removed the USB keyboard and pligged in a different PS/2 keyboard; the problem persisted so I don't think it's a keyboard problem. Someone on one of the boards conjectured that the motherboard may be fried. I don't know if he means that the only the onboard USB circuitry on the motherboard is fried or the entire motherboard is gone.
Another helpful sole had a similar problem and put in a USB 2.0 PCI board and the problem was solved. But I read a posting that said something about 2.0 compatability between the PCI board and the motherboard or certain features of USB 2.0 would not work. Since a USB 2.0 PCI board is cheap I thought it might be worth a shot. Replacing the computer would be great but it's not in the cards right now. I need advice. Thanks
One of the best French door fridges we've tested
A good-looking fridge with useful features like an auto-filling water pitcher and a temperature-adjustable "FlexZone" drawer. It was a near-flawless performer in our cooling tests.