Adaptec SCSI Dual Channel PC Card 68 Pin External Connector AHA-2940U2W. Material: Plastic. Material: Metal. 7.5in length x 4.75in width x 1in height. Actual item size. Color: Green/Gray. Country of Manufacture: Singapore. Feature: Part Number: 1686906-00. Feature: Ultra2 LVD/SE. 2 x 68-pin internal connections. 1 x 50 pin internal connection. Adaptec. 2940U2W and 7896 SCSI Driver Phones by Shara Tibken Dec 5, You may not copy, modify, rent, sell, distribute or transfer any part of the Software except as provided in this Agreement, and you agree to prevent unauthorized copying of the Software. Adaptec Aha 2940u2w Ultra2 Scsi free download - Adaptec UDF Reader Driver, Adaptec DirectCD Update, Adaptec DirectCD Update Patch, and many more programs. Adaptec AHA u2w Storage Controller- Ultra2 Wide Scsi- 80 Mbps eBay. Thu Apr 13, 1: Originally posted by built my first: I never had any problems with aha-2940u2q U2B before trading it in for the Adaptec TekRAM does make some very nice cards. The following Adaptec SCSI Host Adapters are supported by the 7800 FMS v3.02.2. The first list (Fast/Ultra Adapters) is supported by the AIC78xx.SYS driver, while the second list (Ultra2 Adapters) is supported by the AIC78U2.SYS.

Adaptec AHA-2940U2B, 2940U2W, 2940U2/OEM, 2950U2B, 3950U2B HBAs

Preconfiguration Information

• Multi-initiator configurations are not supported.

• The Plug N Play SCAM Support option is not supported.

• Ensure that the Adaptec SCSISelect BIOS option Reset SCSI Bus at IC Initialization (under the Advanced Configuration Options menu) is set to Enabled. Run the SCSISelect utility by pressing Ctrl-A when you see the Adaptec banner during system boot.

• Reboot the system after you install patches.

• If you are both upgrading your Solaris Intel Platform Edition installation and adding a new device driver, you must first upgrade Solaris, then reboot your system, and then apply the Driver Update (DU), as follows.

  1. Perform the Solaris upgrade. Do not apply the cadp DU at this time.

  2. Reboot your system.

  3. When the system has rebooted successfully, insert the DU diskette into the diskette drive and apply the DU as follows.

     Mount the DOS formatted file system:

     Change directories:

     Install the DU:

     Perform a reconfiguration reboot.

Known Problems and Limitations

• If you experience problems when using a narrow SCSI CD-ROM drive on the internal wide interface, disable 'negotiate wide,' 'negotiate sync,' or both for that device in the Adaptec configuration utility.

• If you experience problems when using the narrow internal connector, then disable 'de-selection' in the Adaptec configuration utility.

• The Fujitsu narrow disk (M1603SAU) has been observed reselecting with an invalid queue tag ID. This is a violation of the SCSI protocol and it causes the cadp driver to behave erroneously. Because this is difficult to guard against, it is best to disable taggedqueuing for these targets.

  Use the iostat -E command to determine if you have a Fujitsu M1603S-512 disk. If you do, edit the /kernel/drv/cadp.conf file and add the property target n-scsi -options=0x1f78, where n is the target number.

• The IBM external wide disk (DFHSS2W, Revision 1717) is not supported.

Configuration Procedure

Using the Adaptec configuration utility:

Adaptec Aha-2940u2/u2w - Ultra 2 Scsi Driver Download

Adaptec AHA-2940U2/U2W - Ultra2 SCSI Driver

• Configure each SCSI device to have a unique SCSI ID. On the Advanced Configuration Options menu, set Plug N Play SCAM Support to Disabled.

  Ensure that devices on either end of the SCSI chain are terminated. When mixing wide (16 bits) and narrow (8 bits) devices on the same wide chain, ensure that a wide device is at the end of the chain. If a narrow device is placed at the end of the chain, the wide devices on the same chain only havethe low byte terminated, and this is an illegal configuration.

• If there is more than one controller (or an embedded controller), try to use one IRQ per controller.

• Enable bus mastering for the slot(s) with your host bus adapter(s), when asked.

• For older disk drives, tape drives, and most CD-ROM devices, make sure the maximum SCSI data transfer speed is set to 5.0 Mbps.

• Enable support for disks larger than 1 Gbyte if applicable.