Tyan S2915 n6650W & S2927 n3600B

Written by Michael Larabel in Motherboards on 1 February 2010 at 01:26 AM EST. Page 3 of 8. 5 Comments.

With the Tyan Thunder n6650W (S2915) having more room due to its SSI/EATX foot-print the layout is quite different from the Thunder n3600B. Above each of the two CPU sockets for AMD's Opteron 2000 series processors are four ECC Registered DDR2 sockets each, there are two onboard five-phase digital VRMs and the 24-pin and 4-pin power connectors are on the top edge of the motherboard while the 8-pin power connector was moved half-way down the motherboard. This motherboard supports a total system memory capacity of 32GB of DDR2-667/533/400MHz frequencies. One of the additions on this motherboard was an integrated USB 2.0 port on the PCB itself, which is convenient for some purposes. Found on the Thunder n6650W is not only the NVIDIA nForce 3600 PRO like the other Tyan motherboard we are reviewing, but also an nForce 3050 PRO as well. There is also a NEC nPD720404 PCI-X tunnel and a SMSC 5307 Super I/O ASIC.

In the corner of the motherboard with all the chipsets are the FDD and IDE connectors, six Serial ATA 2.0 ports, and the BIOS battery.

The expansion slots with the Tyan Thunder n6650W include four PCI Express x16 slots, two PCI-X slots, and one PCI slot. Thanks to the nForce PRO 3600 being accompanied by the nForce PRO 3050 and the larger PCB size, there is better connectivity on this motherboard. Two of the four PCI Express x16 slots provide full PCI-E x16 bandwidth while two are limited to PCI-E x8. Unlike the S2927, the S2915 also lacks any integrated video support.

The two SKUs for the Thunder n6650W (S2915) are S2915A2NRF and S2915WA2NRF with both offering audio and IEEE-1394 Firewire support and identical features except for the S2915WA2NRF model providing eight SAS ports provided by a LSI SAS controller, which is in addition to six Serial ATA 2.0 ports.

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