Question about NEC SD-V2-5U (SDV25U) Serial Adapter

1 Answer

XP won't boot with NEC SD-V2-5U USB card installed

Have tried to install NEC SD-V2-5U USB2 card as I need extra USB ports but Windows XP won't boot with card in PC. PC works fine without card- won't boot without. Any ideas?
System is WindowsXP Pro SP2, AMD 2500+ Barton bore CPU with 1Gb DDR-400 RAM on a Gigabyte GA-7VT600 1394 Motherboard.with on board VIA USB.


Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: XP won't boot with NEC SD-V2-5U USB card installed

Have you tried moving the card to a different slot? The motherboard BIOS and/or the operating system may be trying to assign an interrupt that cannot be shared--especially if you have the card installed in the slot next to the video card (or shared with the onboard video).

Posted on Nov 07, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Sd-pex-vt4e4i windows 7 driver

Sybe makes your card. It was sold by many - including Newegg, here.
Here's Syba's support page for the SD-PEX-VT4E4I. It says no driver are needed, but only is supported up to Windows Vista. You want to contact support directly but I suspect this is End Of Life.
Good luck!

Apr 27, 2013 | SYBA PCI-Express USB2.0 + 1394a FireWire...

1 Answer

I have APIOTEK EC-0008 serial express port card RS 232 it is not getting installed on my dell windows XP enviornment what is the reason

have you installed drivers for the card, as windows might know what it is but it wont be able to use it till the drivers are installed click below onto what version of windows you have and download the drivers

Windows 98/M2/2000/XP/2003
Windows Vista 32/64bit
Linux RedHat 7.3/8.0/9.0

Mar 16, 2011 | Port Designs Best Connectivity RS-232...

1 Answer

I installed this card and still have no USB 2.0. I think I need a driver. XP did find the card and installed it. It works, just not high speed.

Speed depends not only on USB adapter but also on the device you plug in. In general, if you can copy to thumbdrive at 5Mbytes/sec than it's USB 2.0

Jun 03, 2010 | SYBA SD-VIA-5U Serial Adapter

1 Answer

Nec USB 2.0 CardBus on HP Compaq nw9440 with Vista Ultimate

Hi I have a Compaq Presario 919EA with xp operating system and others have a nec pcmcia usb 4-port and when the insert locks the operating system

Feb 01, 2009 | NEC USB 2.0 ( ) Laptop PCMCIA CardBus PC...

3 Answers


Your problem is a power overload on the USB 2.0 card. If you plug in a 5volt power supply to the USB 2.0 PCM/CIA card, it will solve your problem. You can also use any USB port on your computer to plug in an A-A USB cable to power the PCM/CIA card and it should resolve the lockup. Also, check and make sure you have enough RAM memory in your comptuer for Windows XP. Recommend 512, but runs much better on 1024 (1 gig) of RAM.


May 10, 2008 | NEC USB 2.0 ( ) Laptop PCMCIA CardBus PC...

1 Answer

Windows Vista won't boot

Windows vista is not included in product min OS requirements technical details. That may be the problem.
Product Features
  • HP DC195A Serial/Parallel Multi I/O PCI Card General Features: Serial/Parallel adapter PCI interface
  • Easy to install Fast transfer rate (430 Kbps) Connectors: One (1) Serial port (9-pin D-Sub DB-9)
  • One (1) Parallel port (25-pin D-Sub DB-25) Regulatory Approvals: FCC CE
Technical Details
  • Model: DC195A
  • Item Package Quantity: 1
  • Hardware Platform: PC
  • networking_feature: Parallel/serial adapter
  • form_factor: Plug-in card
  • Network Interface Description: PCI
  • Connectivity Technology: Wired
  • Data Link Protocol: Parallel, RS-232
  • Minimum system requirements: Microsoft Windows NT, Microsoft Windows XP Home Edition, Microsoft Windows 2000 / XP Professional
  • Depth: 4.7 inches
  • Height: 3.5 inches

Jan 22, 2008 | HP (DC195A) Serial Adapter

2 Answers

Via Vectro VT6212 adaptor not recognized by WindowsXP SP2

is the usb 2.0 card driver properly installed?,is there any conflict?

Feb 24, 2007 | VIA Vectro VT6212 (A62124) Serial Adapter

1 Answer

Machine locks up

install the vendor specifig driver for the PCMCIA. because windows XP sp2 is also able to detect the device and when you push the device online it is detecting and there is some other device which has got same IRQ and that is conflict with this and stop. see any error that is generated in event viwer * run>type "eventvwr" and enter * see the application/system try to detect your error log and see what microsoft says about it. otherwise post the error report Thanks Arun

Jan 17, 2007 | NEC USB 2.0 ( ) Laptop PCMCIA CardBus PC...

1 Answer

No device recognition!

Install the manufacturer's drivers not microsoft.

Oct 04, 2006 | Sabrent (USB-UF6) (USBUF6) Serial Adapter

Not finding what you are looking for?
NEC SD-V2-5U (SDV25U) Serial Adapter Logo

Related Topics:

388 people viewed this question

Ask a Question

Usually answered in minutes!

Top NEC Serial Adapters Experts


Level 3 Expert

1061 Answers

Martin Murray

Level 3 Expert

1614 Answers


Level 2 Expert

68 Answers

Are you a NEC Serial Adapter Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides