USB Query

  milkybarkid 22:22 09 May 05
Locked

I have a motherboad on a PC that is about five years old with two USB slots. I want to add some more so am thinking of adding a four slot usb PCI card. I expect all the current pCI/Usb are USB 2 and that the mboard is USB 1. Will the additional card work OK. My feeling is that it will work at USB 1 speed but I would like to know.

  Totally-braindead 22:24 09 May 05

If you buy a PCI USB 2.0 card it will run at USB 2.0 speeds.

  russmini 22:28 09 May 05

Not necessarily, if it is as milkybarkid is saying attached to a USB 1.1 mobo then it is backward compatable and will run at USB 1.1 speeds, not USB2.0 speeds, but all will work fine. My old comp had the same installed, but two not four added by PCI slot.

  Eric10 22:53 09 May 05

A USB 2.0 PCI card will be totally independent of the USB 1.1 of the motherboard because it has its own controller although it could be limited by the speed of the PCI bus. Avoid the ones that use the VIA chipset as I have had problems with these but ALI and NEC are fine.

  DieSse 22:57 09 May 05

Eric10 & Totally-braindead are correct here, just in case you are confused.

  milkybarkid 23:00 09 May 05

Thanks good people. Will look for the suggested chipsets.

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