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

  • Scots Billy Nov 06, 2007

    Sorry for the typos. Should read: "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 with it. Any ideas? System is WindowsXP Pro SP2, AMD 2500+ Barton core CPU with 1Gb DDR-400
    RAM on a Gigabyte GA-7VT600 1394 Motherboard.with on board VIA USB."




1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

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


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

I have a Quantaray SD card reader, I put a SD card in it and it doesn't work. I guess I need a driver or software in my Windows 7

Are you sure it's an SD card? If it's larger than 2GB then it's actually an SDHC card and won't work in devices designed only for SD cards.

Aug 05, 2013 | E-Machines eMachines Desktop PC

1 Answer

Usb 2 card is only working at low speed after reinstalling windows xp. How can I get it to go to high speed? NEC 4 Port USB 2.0 PCI Controller Card

Make sure that you have the proper driver installed for your USB interface. Your motherboard should have come with a CD, or you can go to the motherboard manufacturers website and download the latest chipset drivers.

Once they are downloaded, install them and re-start your PC. Windows XP will then recognize a whole set of new components and allow your card to run at higher speeds.

You are looking for the PCI Bridge driver in particular, but I would recommend installing ALL the drivers that are available from the motherboard manufacturer.

Jan 22, 2010 | SYBA (SD-NECU2-3E1I) (SD-NECU2-3E1I) USB...

1 Answer

XP won't recognize Simpletech Pininfarina 60 GB external hard dr

Make sure you are plugged into a USB2 port and not a low speed port.
You can Bing the device name and more than likely find the drivers at the origanial manf.
Try removing all other external devices before installing the new one.
Re-boot the unit with all disconnected.
After the until has setteled down, plug in your USB drive in the USB2 Port and see if the operating system see's the new installation.
If it is see correctly, then you can install your other devices.
Hope this helps you.
P.S. you may want to look at the jumper setting on the USB drive and set them to default.

Oct 01, 2009 | SimpleTech Pininfarina 60GB External USB...

1 Answer

Voltage/polarity of power supply for NEC pcmcia 4 port USB2 card

If you KNOW it is 5 volts then you only need to make sure that the amp is higher and never lower. Higher amp only means it can work without getting too hot. But the VOLTS MUST BE precise. For polarity it is MOST common to have the center pin PLUS and outer NEG/GND. When I fix laptops and put the powercord wrong nothing happens. When I get it right then lights go on on PC.

Oct 31, 2017 | NEC USB 2.0 ( ) Laptop PCMCIA CardBus PC...

1 Answer

System freeze

The issue was resolved by uninstalling SP3. I uninstalled SP3 and the USB PCI card and rebooted. When SP2 reinstalled the device it installed the corect driver (5.1.2600.2180) and everything is now functional. Have no idea why the correct driver was not in XP SP3.

Jan 24, 2009 | SYBA (SD-NECU2-3E1I) (SD-NECU2-3E1I) USB...

1 Answer


what OS,? was it internet connected during all that? it must.

If XP its now a dead OS, for 3 years, , hp nor microsoft support
XP nor does HP support old SR1430nx.(now)

you installed PCI card ,called USB, no name stated or part number
use the drivers from THEM< the maker of the card.
there are always extra cables, most are power supply cables. in DT.
A tech would look and instantly see where they go and there purpose, explaining that is long long story.
my guess is the quesiton is formed backwards. lite me guess
Running XP "need some 8gb/mp4 player working."
this is the title deal but what is it? is it an external box tghat plays, DVD or is it just a software player. name that it is more clearly, even photos work 1000x best.

you find out XP does do USB well, , sure it does it horribly
XP does not support all USB devices, (some sure) but many not.
and must have SP3 installed, good luck finding that on dead OS
and not get infected with virus, XP is a Virus Magnet.

Getting XP up on new USB devices is a chore, no/?
why not ask the maker of both the mp4 player if it supports
XP. and then ask the card maker USB if it supports XP'

sr1430 (circa 2005?) 12years old, 2 past HP support.
Pentium 4.
what make s you think, this old pc with 512mb memory and slow pc and slow video are up to the large demands of videos movies.
it's not.

the front of the case (reading old review from2005)
shows a USB 2 port.
and that is wires there that go to the motherboard, USB2 jack.
if unplugged this wire USB2 there will be dead.
the mother board has a USB chip, and port.
but needs drivers you dont have, from HP that are no longer
how to cure that, you add a new PCI card, from a maker that supports
XP, , but who does that now in 2017.

"Syba SD-VIA-2UH"
here is one with the VIA chip set for USB
note how it says box has PCI card, and CD driver.
with XP accept no cards, lacking DRIVERS.

Apr 21, 2017 | HP Compaq Presario SR1430NX (PS566AA) PC...

1 Answer

USB2 Problem Windows thinks My card is USB1.1

what do you mean when you say that the 4 USB2 ports are all occupied?
when you say that there are 2 USB1 ports on the back of the case: are those ports connected to the motherboard at all?

what devices are you using to test your USB ports? is it possible that those are USB 1 devices?

Mar 28, 2008 | Microsoft Windows XP Home Edition

1 Answer

Usb 2.0

this is a common error with operating systems and devices.
If you go into my Computer/system/device manager. And remove the installed USB devices. shutdown the computer, and reboot it. then try putting your USB device in.
What general happens, is that if you have had an older device in the USB port at any time, the port configures itself to this setting. options are to try another port on the computer ( some older ports only support usb1.1 )
ensure you have up to date drivers on the connecting device and on the connecting computer.
Hope this helps Mike @ Compurepair.

Feb 22, 2008 | ASUS M2A-VM (0610839149438) Motherboard

3 Answers

USB2 high speed not recognize

Try opening up the device manager and unistall everything in the Universal Serial Bus Controllers. Then reboot and let windows reinstall the USB controllers. Windows should now be able to recognize properly USB2 devices.

Feb 22, 2008 | ASUS M2A-VM (0610839149438) Motherboard

9 Answers

USB2 high speed not recognize

It sounds like your Windows XP might be missing the USB2 drivers. Try going here and download the driver needed and see if that fixes your issue.

Sep 27, 2006 | ASUS P5LD2-VM Motherboard

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

Related Topics:

393 people viewed this question

Ask a Question

Usually answered in minutes!

Top NEC Computers & Internet Experts

parusdi rusdi

Level 1 Expert

3 Answers

Steven Wander
Steven Wander

Level 3 Expert

593 Answers

Alun Cox

Level 3 Expert

2678 Answers

Are you a NEC Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides