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PO5 Tech Notes

Windows 10 and Windows 8 issues

TN0970

Product: TDT Drivers, PO5, PO5e, PO5c
Version: All
Date Added: 2016-02-08

Issue

Windows 8 and above known issues:

  1. Windows 10 has no option to delay or disable updates for non-enterprise users. Users running long/overnight experiments will have to disable the service to ensure recordings aren't interrupted. See Tech Note #0964.

  2. The 'Fast Startup' function in Windows 8 and above causes problems with the PCI Interface on bootup. Disabling this setting resolves the bootup issue.

  3. Data Saving and Cache errors can be caused by the Windows 8 and 10 Superfetch/Prefetch (a feature that caches data to improve the performance off some applications) and Indexing (used to speed-up searches) services are turned off.

PCI card slot compatibility

TN0265

Product: PI5, PO5
Version: All
Date Added: 2007-09-20

Issue

The PI5 and PO5 cards should only be installed in (PCI v 2.2 or greater) compliant 3.3 V slot. The PCI standard has changed and evolved through the years with varying degrees of backwards compatibility, however, most computers purchased since 1998 will support the PI5 and PO5. Problems with compatibility typically manifest as communications errors and can be hard to troubleshoot. This tech note can help you verify that your computer's PCI slots are compatible with the PI5 and PO5.

The early versions of the PCI standard (v 2.2) supported 5 Volt cards. When PCI 3.0 was released in 2002, all 5 Volt PCI slot support was removed in place of 3.3 Volt compatibility, however, 5 Volt slots can still be found on older machines. To avoid 5 Volt slots, check your computers specifications or carefully check the PCI adapters on your computers motherboard and compare them to the diagram below.

As illustrated in the figure above, 3.3 Volt PCI slots always have the PCI key close to the back of the computer tower unlike the 5 Volt slots that are furthest away from the back of the computer tower.

You will need to avoid PCI-X slots. These 64-bit slots will be notably longer than the PI5 and PO5.

PI5/PO5 Gigabit Interface not recognized after installation. File wdpnp.sys needed

TN0246

Product: PI5, PO5
Version: All
Date Added: 2007-03-18

Issue

After a PI5 or PO5 card is installed into a PC and the system is restarted, the Found New Hardware Wizard is launched. As the wizard is run it may display a Files Needed dialog box with the message "The file 'wdpnp.sys' on WinDriver Installation Disk is needed."

Solution

To Complete the Found New Hardware Wizard, you'll need to provide additional information about the location of a device driver called wdpnp.sys.

If you installed the TDT Drivers from files on a CD, ensure that it is in the CD drive. If the Files Needed dialog box is displayed, click Browse and navigate to the CD Drive. Select the wdpnp.sys found in the main directory of the TDT CD and complete the wizard.

If you installed the TDT Drivers from files downloaded from the TDT website, when the Files Needed dialog box is displayed, click the Browse button and navigate to the folder in which the drivers are located (typically C:\WINDOWS\system32\drivers). Select the wdpnp.sys file and complete the wizard.

Cycle Usage exceeds 100% on auxiliary processors during large data transfers

TN0205

Product: PO5, FO5
Version: All
Date Added: 2006-03-20

Issue

The RX devices utilize a multi-DSP architecture that relies upon the Main processor to control a shared bus. As a result, the auxiliary processors may be unable to access the shared bus and memory when transfer rates are high. When they can access the bus the load on the processor can cause cycle usage to exceed 100%, resulting in timing errors or other difficult to detect errors.

Workaround

Users must be aware of this limitation and make sure that the cycle usage on all processors never exceeds 100% during maximum transfer. Refer to the MultiProcessor Circuit Design section of the RPvdsEx Manual for more information.

Hardware conflict with PI5 or PO5 PCI card.P

TN0204

Product: PI5, PO5
Version: All
Date Added: 2006-02-27

Issue

After installing the Gigabit or Optibit PCI card in your computer, there may be a conflict with how the PC communicates with the card and other devices in the system.

This could lead to the following error message when performing a transfer test in zBUSmon: "System Test Error: Cycle power on system and test again".

Workaround

Check the hardware settings for the PCI card in the Windows Device Manager. Locate the "Jungo" card and check the Properties. Under the Resources tab, check the Setting of the Resource Type IRQ (Win XP) or Interrupt Request (Win 2000). On some PCs this number may be shared with another device, such as a USB Host Controller.

If you experience system problems and find the IRQ number to be the same on another device, then you should move the PI5 or PO5 card to another PCI slot in your machine. You will be required to go through the Windows Found New Hardware Wizard again to assign the card drivers properly. This should change the IRQ setting for the TDT card, eliminating the previous conflict.

Important

The PI5 or PO5 card needs to be installed into a (PCI v 2.2 or greater) compliant 3.3 V slot, and not in a PCI-X or PCI Express slot.

PCI slot requirement for the Gigabit and Optibit Interfaces

TN0035

Product: PI5, PO5
Version: All
Date Added: 2005-12-15

Issue

The PI5 and PO5 zBus to PC interface cards must be installed in a standard size, PCI version 2.2 compliant (that is, slots with a 3.3 Volt power supply).

Important

While these cards have a notch for a 5 Volt slot and a notch for a 3.3 Volt slot and will plug into either, they will only work when plugged into a 3.3 Volt slot.

Do not install in a PCI-X slot—the interface might fail.

Do not attempt to install in low-profile PCI slots. While low-profile and standard PCI cards maintain the same electrical, protocols, PC signals and software drivers as standard PCI expansion cards, the low-profile bracket is not compatible with standard cards.