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| Tempo SATAII 4x PCIe Card - E4i Internal 4-port SATA II, 4x PCIe card. Each port supports 3Gb/sec. In later Power Mac G5 models (with PCIe slots), this card is a perfect match for the Sonnet G5 Jive, a 3-bay internal storage expansion system for the Power Mac G5. NOTE: This controller does not support SATA DVD drives.
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 CATEGORY: | Harddrive Controllers |  | PARTNUMBER: | SNTN5250004 |
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| MANUFACTURER: | Sonnet Technologies, Inc | PLATFORM(S): |  Mac &  Win | |
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| ON THE WEB: | www.sonnettech.com | AVAILABILITY: | Usually ships in 2-business days or less. | |
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| AVERAGE RATING: | Not rated yet!  Write a review! | DELIVERY: | Packaged - Due to this items unusual size or weight, an extra shipping surcharge may be applied to your order. | |
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| Tempo SATAII 4x PCIe Card - E4i Specifications |
| Do your storage needs outweigh what your new dual-core Power Mac® G5 can support? Stuff it-with drives, that is! Sonnet's TempoTM SATA E4i 4-port Serial ATA Host Controller for PCI Express enables you to connect up to 4 additional internal drives (1) for the perfect balance of flexible expandability and superior performance. This card is an ideal companion to our G5 JiveTM internal drive mount system for Power Mac G5 computers-along with your SATA drives, this combination is the most cost effective way for adding up to 4 Terabytes of high-performance capacity to your G5. Do you need more speed? Tempo SATA E4i offers 3Gb/s per port data transfer support and gives you performance to burn! You'll get great performance from individual drives, but grouping up to four Serial ATA hard drives in a RAID 0 (striped) set will provide astonishing sustained read/write performance numbers enough to capture and process High Definition video! Want more security? Set up your drives in a RAID 0 (mirrored) or RAID 10 (striped/mirrored) set for up to 2 Terabytes of data redundancy. When you need more flexibility and performance than offered by standard solutions, get a Tempo SATA E4i-it'll give you room to grow and blazing performance for the most demanding applications. Key Benefits
Technical Notes: (2) SATA drive hot swapping is not supported in a desktop or server PC running Windows XP, Server 2003 or Vista. A SATA drive appears to the system as a not-removable hard drive and there is no mechanism in Windows to prepare the drive for removal. (3) Parallel disk drives are supported when using Sonnet's Tempo Bridge or similar Serial ATA-to-Parallel ATA adapter. |
| Tempo SATAII 4x PCIe Card - E4i Frequently-Asked Questions |
1. HOW DO I TERMINATE A SCSI BUS? When a SCSI controller issues a command to one of the devices on the SCSI bus, it does not expect to have that command come back to it. Instead, it expects to hear just the response from the drive it issued a command to. Properly terminating the SCSI bus prevents signal reflection on the cables, essentially absorbing commands when they reach the end of the cable. On an improperly terminated SCSI bus, it is common to have the controller software issue error messages caused by unexpected activities on the bus or to experience complete failure of the bus. The "golden" rule for SCSI termination is that each end of a SCSI bus must be terminated and no terminator can exist anywhere in between these ends. When you add or remove drives from a SCSI bus, you must comply with this rule. Each SCSI bus starts with a controller. The controller is terminated. Even if there are no drives attached to it, the controller can still issue commands to search for drives without having those commands reflect. Typically, you will add at least one SCSI drive to the bus. You will do so by connecting a ribbon cable from the controller to the drive. Note that one end of the ribbon must plug into the controller and the other end must plug into the drive. In this case, the drive must also be terminated so that both ends of the bus are terminated according to the rule! If you then add additional drives, you can install the drives anywhere along the cable, providing only the drive on the end is terminated. The termination rule gets complicated when you try to add both internal and external SCSI drives to a system. Since the rule states that the ends of the SCSI bus must be terminated, obviously the drive connected to the end of the internal cable must be terminated and the drive connected to the end of the external cable must be terminated. Unfortunately, this leaves the controller somewhere in the middle of the bus and it too is terminated. If the controller does not provide automatic termination enable/disable, you must manually disable termination on the SCSI controller. Note that termination violations might sometimes appear to work. However, it is better to be safe than sorry. Follow the rule! Terminating a drive usually involves installing or removing a jumper on the drive. Check your drive manual for this jumper setting. If the drive does not provide built-in termination, you can purchase a stand-alone terminator. Terminators are available to plug into most SCSI connectors and come in a whole host of shapes and sizes so get the one designed for your application. Note that most new SCSI drives do not provide a built-in terminator and termination is provide by a separate terminator plugged into the end of the SCSI cable.
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