Upgrading USB 1.1 to 2.0

Dell Dimension 4500s desktop
March 29, 2010 at 09:29:24
Specs: Windows XP
I have a 4500s dell pc and what to upgrade my usb 1.1 to 2.0. When I open up the tower, it looks like there is only one pci slot on the motherboard but its in a weird place where as I can't install the usb 2.0 pci card, but in the card cage, my 56k modem is there and it looks like a unused pci is under it. can I install my usb 2.0 pci card there?

See More: Upgrading USB 1.1 to 2.0

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March 29, 2010 at 09:31:33
You can install it in any free pci slot.

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March 29, 2010 at 09:36:47
ok even if its in the card cage? I'm not too computer smart but on the card I just got, it has a small row of teeth then a a break then a large row of teeth then a break then another small row. My pci slot has 1 space where one break would go into.does it matter what it looks like?

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March 29, 2010 at 10:59:12
The board has one PCI slot, then a longer slot for a riser card. The riser card should be inside the card cage & has two PCI slots on it.

See info beginning on page 66:

4500S manual


However, your system already has USB 2.0 ports (see page 75) but you need to at least have SP1 installed.

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March 29, 2010 at 12:36:56
it doesn't have usb 2.0, everytime I plug a usb drive in, it says it would be faster if I connect it to a hi speed usb 2.0 port. and I tried all my plugs and it still said it. I must have a dumbed down 4500s

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March 29, 2010 at 18:41:33
Make sure you have SP3 installed along with the latest motherboard chipset drivers.


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March 29, 2010 at 19:30:30
Some bioses have a setting in the bios Setup that can disable USB 2.0 support (it may not be called that).
Go into the bios Setup and make sure all settings for USB are enabled.

If that / those are enabled....

XP must have at least SP1 updates loaded in it in order to support USB 2.0.

If it does.....

If the USB 2.0 support has a problem, that will show up in Device Manager.
(RIGHT click on My Computer - Properties - Hardware - Device Manager)
There will be one or more USB related Unknown or Enhanced devices that are flagged as not having drivers or as not working properly.

If there is a problem or problems there..

Apparently installing XP installs the main chipset drivers for your Intel 845G main chipset, but if they've been corrupted your USB 2.0 controllers won't be recognized.
You can load them again without having to un-install anything
Get them here:.

After the main chipset drivers have been installed and you have re-booted, look in Device Manager again - the problem USB related entries should be gone.
If they aren't, sometimes Windows leaves entries behind there that shouldn't be there - RIGHT click on each one, Un-install it, then reboot. Look in Device manager again - all should be well.

NOTE that sometimes front USB ports on a desktop case have inadequate wiring between them and the USB header on the mboard that can't support USB 2.0 requirements.
The ports built into the mboard on the back of the case, in the I/O area where most of if not all of the ports are, should support USB 2.0 devices just fine.

NOTE that you should have the Intel Application Accelerator listed in your All Programs list.
If you don't have that, your hard and optical drives are not running as fast as they are capable of.
In that case, go here, download the IAA, and install it:

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