WD freezing -> Davis VP USB data logger problem

Hello all. WD keeps freezing. I usually have to restart the computer. It’s been doing it for about a year and I would like to find out why. I am running 10.37H on a dedicated computer. It has just done it again and I have attached the error file that windows came up with. I also have a DMP file. Any suggestions would be appreciated.

Here is the spec of the computer:

Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 2
DirectX (DirectX 9.0c)
User Name jcarver

  CPU Type                                          Intel Pentium 4, 3000 MHz (15 x 200)
  Motherboard Name                                  Unknown
  Motherboard Chipset                               Intel Springdale-G i865G
  System Memory                                     1014 MB  (PC4000 DDR SDRAM)
  BIOS Type                                         AMI (09/08/06)
  Communication Port                                Communications Port (COM1)
  Communication Port                                CP210x USB to UART Bridge Controller (COM3)
  Communication Port                                ECP Printer Port (LPT1)

  Video Adapter                                     Intel(R) 82865G Graphics Controller  (96 MB)
  3D Accelerator                                    Intel Extreme Graphics 2

  Audio Adapter                                     Microsoft RDP Audio Driver

  IDE Controller                                    Intel(R) 82801EB Ultra ATA Storage Controllers
  Floppy Drive                                      Floppy disk drive
  Disk Drive                                        Maxtor 91728D8  (16 GB, 5400 RPM, Ultra-ATA/33)
  Optical Drive                                     HL-DT-ST CD-ROM GCR-8523B  (52x CD-ROM)
  SMART Hard Disks Status                           FAIL

  C: (NTFS)                                         16465 MB (8466 MB free)

  Keyboard                                          Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
  Mouse                                             Microsoft PS/2 Mouse

  Network Adapter                                   Realtek RTL8139/810x Family Fast Ethernet NIC
  Network Adapter                                   Realtek RTL8169/8110 Family Gigabit Ethernet NIC  (

  Printer                                           Microsoft XPS Document Writer
  USB1 Controller                                   Intel 82801EB ICH5 - USB Controller [A-2/A-3]
  USB1 Controller                                   Intel 82801EB ICH5 - USB Controller [A-2/A-3]
  USB1 Controller                                   Intel 82801EB ICH5 - USB Controller [A-2/A-3]
  USB1 Controller                                   Intel 82801EB ICH5 - USB Controller [A-2/A-3]
  USB2 Controller                                   Intel 82801EB ICH5 - Enhanced USB2 Controller [A-2/A-3]
  USB Device                                        American Power Conversion USB UPS
  USB Device                                        CP210x USB Composite Device
  USB Device                                        CP210x USB to UART Bridge Controller (COM3)
  USB Device                                        Logitech Microphone (Pro 4000)
  USB Device                                        Logitech QuickCam Pro 4000
  USB Device                                        Logitech USB Camera (Pro 4000)
  Battery                                           APC Battery BackUP

8daf_appcompat.txt (57.5 KB)

do you have a USB data logger?
if so, then that is the problem

the solutions are:
a), swap to get a serial one (and then a good quality usb to serial adaptor) (best solution)
b), try a driver upgrade for the usb data logger from Davis
c), get a mini usb cable that has ferrit chokes on each end, to replace the one Davis has

there are many many posts of problems with the usb data logger on this and other software forums

Also didn’t Steve (SoftWx) post not long ago that he has quite a few reports of VVP also helping with USB loggers?


yes, that would be option d), try setting up and using VVP

Thanks for the help. What is a VVP please?

Virtual Vantage Pro
check the forum section for that, under Tinplate software

Which version of CP210x USB Composite Device do you have?

In device manager under serial ports right click CP210x USB and properties.

Several version exist and I have found 4.40 from davisnet works well.


5.0 and 5.1 exist but these cause my XP SPK2 machine to BSOD every so often.

If you do change version the old one must be un-installed first from add/remove programs (normally two items) with of course the logger usb unplugged.

New (or older) version can then be installed followed by plugging logger back in.

Or if you are on good terms with davis get a true serial one if you have a spare 9 pin serial port :slight_smile: