|"SOYO SY-K7V Dragon plus"|
See the manual info below and make sure PnP OS installed is set to Yes in the bios (page 91 of the *.pdf manual document) .
If it's already set to Yes, you could try setting it to NO if nothing you try gets the USB card working properly.
See the first part of response 1.
If you DID have the AC power disconnected to the power supply at all times, there's probably nothing wrong with the USB card.
In theory it SHOULD work fine in at least one of the slots other than the PCI slot closest to the center of the mboard.
If you have other PCI cards in slots, you could try changing which card is installed in which slot.
If you DID NOT have the AC power disconnected to the power supply at all times, you may have damaged (the circuits on) the USB card.
If you HAVE damaged the USB card, it won't work when plugged into ANY computer. Mboards much newer than yours are more likely to have no problems with the card being recognized by the mboard properly the first time you try it, as long as it's not in that PCI slot closest to the center of the mboard.
By the way, if you need to get another USB 2.0 controller card, ones with Via chips are well known to be more likely to cause you problems - ones with other makes of chips - e.g. NEC - are much less likely to cause you problems.
E.g. I know for sure that at least some NEC USB 2.0 controller chips can use IRQ 12 if it's available for PnP use (you're not using a PS/2 mouse, and using one is disabled in the bios Setup if that applies) when the card is in at least one of the PCI slots, other than the one closest to the center of the mboard.
Even if you can't get the USB card to work, you have up to 4 USB port connections available to connect to on the mboard USB headers.
I think I have found the manual for your mboard.
You must have a version of Adobe Acrobat Reader, or another program that can read *.pdf files, installed on your computer to be able to read it.
If such a program has been installed, clicking on Download at the following link will load the manual to your screen.
When it has finished loading completely - it has over 200 pages in it - assuming you have a version of Adobe Acrobat Reader installed, you can click once on the floppy disk icon in the top bar of Adobe Acrobat Reader and choose a location on your computer to save the manual to.
Manual - Soyo SY-K7V DRAGON+ - mboard version 1.1
Specs Soyo SY-K7V DRAGON Plus!
Click on picture to make it larger.
Under Downloads - No manual there
Specs Soyo SY-K7V DRAGON+
Click on picture to make it larger
The picture looks like it's the same one as the one for Soyo SY-K7V DRAGON Plus!
Under Downloads - the above manual.
Alternate manual source, probably the same one - Soyo SY-K7V DRAGON - mboard version 1.1
" mboard version 1.1"
Printed somewhere on the surface of the mboard there is a Version number (V 1.1 or or Ver 1.1) or a Revision number (R 1.1 or Rev 1.1).
It's often after the model number, which in your case is printed in obvious larger characters between the slots near the center of the mboard, or it may be elsewhere in larger characters.
Two USB headers for two USB ports each
Location - Page 10, 11 of the pdf
Com ports, PS/2 ports shown page 10 of pdf
More about PS/2 ports page 21 of pdf
USB port wiring on the headers page 38 of pdf
Page 51 - note about USB ports
Enter bios Setup page 55
The following pages after that - details about Bios Setup settings.
Integrated Peripherals page 78
page 91 - PnP OS installed should be set to Yes (it's set to NO by default)
Page 92 - IRQ 12 will be released by the PnP bios automatically if the PS/2 mouse is not used
(So if you're not using a PS/2 mouse, a USB card or a networking card may be able to use IRQ 12 automatically).
There are many possible arrangements regarding which pins on the USB headers are for what purpose, that was never standardized, but fortunately in the case of your mboard, the USB ports use an arrangement that has become the most common way of doing that.
You can connect a 2 USB port (on a metal bracket that installs in a slot space) wiring adapter to one USB header, or a 4 port wiring adapter to two USB headers on the mboard, for 2 or 4 additional USB ports, that support USB 1.1 specs.
E.g. These are compatible with using them with your USB headers....
2 Port USB A Female Slot Plate Adapter
Part #: USBPLATE
•USBPLATE wiring scheme: Red=Power, Green=Signal, White=Signal, Black=Ground
Two five in a row female connectors.
The end with the red wire on each one goes on the pin on the USB headers for +5v power.
The wiring of the female connectors is compatible with your USB headers.
StarTech 4-Port USB2.0 Connector Backplate
Part #: USBPLATE4
•USBPLATE4 wiring scheme: Red=Power, Green=Signal, White=Signal, Black=Ground
Reds on end of double row connectors opposite the end with one pin hole.
The female connectors and the wiring of them is compatible with your USB headers - they go on only one way. .
The wires inside the cables for those those adapters are compatible with USB 2.0 specs (thick enough wires) - that's the case for virtually all such adapters - but whether the USB ports support USB 2.0 specs is dependant on the specs of the USB controller they are connected to..
You will get the "nag" message when you plug in a device that informs Windows the device would work better if the USB port supported USB 2.0 specs, but otherwise they will work fine, although they have a slower max data transfer speed.
NOTE that there is a setting in the Bios Setup where you can specfiy how many USB ports connected to the mboard directly are enabled - that's usually set to ALL enabled by default.
See pages 78 and 79 in the manual pdf
NOTE that if you can't get into the bios by pressing Del with your wireless keyboard, there is a setting in the bios that must be enabled in order for you to be able to get into the bios with a USB connected keyboard (the transmitter / receiver for your wireless keyboard may be seen as a USB connected keyboard).
Page 79 of the pdf manual document - USB Keyboard support - it's set to Enabled by default, but someone may have set it to Disabled.
- if you have or can borrow a PS/2 keyboard you can temporarily connect, you can always get into the bios with a PS/2 connected keyboard.
You can then go into the bios and change that setting so that a USB connected keyboard can get into the bios Setup.
- OR - if you remove the Cmos battery from the mboard when the mboard has no AC power to it, then install the battery again so the + on it is showing when it's installed, since the default setting is Enabled, you will then be able to get into the bios with a USB keyboard
However - you will get a "Cmos Checksum Error " or similar message when you boot the computer, and you will need to go into the bios and change the Date and Time to the current ones, Save bios settings, to get rid of that error.
- there may be other settings in the bios you will need to change from the default setting.
If you have or can borrow a PS/2 keyboard you can connect to the computer temporarly, there's an additional thing you can try, if nothing else you try gets the USB card working properly.
There is a setting in the bios that assigns an IRQ to the VGA and and another IRQ to the built in USB controller that's set to Enabled or Yes by defaiut. If you connect a PS/2 keyboard you can set that setting to disabled or No , save bios settings, when the USB card has been installed in a slot. - that may get the USB card to be recognized fine while booting - if so, if you go back into the bios and set that setting to enabled or Yes again, the bios may assign a different IRQ to the onboard USB controller than it used before, and in that case both the ports for the onboard USB and the ports on the USB card will work fine.
NOTE that that setting must assign an IRQ to the USB controller in order for the onboard USB controllers to work.
If you use a PS/2 keyboard in Windows when that is disabled or off, you also need a PS/2 mouse or a Serial mouse (connects to a Com port) to be connected.