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Jetway 939GT4-SLI: Gem with a New SLI Twist
Jetway 939GT4-SLI: Gem with a New SLI Twist
Date: August 24th, 2005
Topic: Motherboard
Manufacturer: Jetway
Author: Wesley Fink
 
 

Jetway has had many interesting products in the last couple of years. Smaller players in the PC Market often have a hard time getting noticed, and we applaud Jetway for bringing some unique products to market as a means of shining the spotlight on the Jetway brand. When we first heard of the Jetway nForce4 SLI board with 3 x16 PCIe slots, we figured it was just another interesting twist from Jetway. However, the idea is such a good one that we really wanted to take a closer look.

The first SLI motherboards provided SLI capabilities with a Paddle card that was reversed to switch between single x16 video and dual x8 operation.

DFI reverse-engineered the paddle in their SLI design and came out with the very flexible, but cumbersome jumper solution for SLI switching.

Other manufacturers like Asus have recently brought out SLI boards that use more expensive auto-switching technology where SLI can be turned on or off in BIOS. The advantage is mechanical simplicity, but the disadvantage is that overclocking performance may be compromised with a smaller range of overclocking than the more commonly used paddles and jumpers.

Jetway did a very clever and elegant rethinking of SLI in the design of the 939GT4-SLI-G, which is the subject of this review. All of the competing SLI boards use at least two-slot spacing between the two x16 slots to allow for double-width cards like the NVIDIA 6800 Ultra. Jetway used this fact to create a fresh new approach.

Jetway mounts 3 x16 PCIe slots single-spaced on their 939GT4-SLI. The outer slots, colored green, are configured as x8 slots and can be combined in SLI mode using the included SLI bridge. The middle x16 slot, colored yellow, is a single x16 PCIe slot. For single video, you use the yellow x16 slot. For dual video or SLI, you use the green slots.

Jetway does not need a paddle card, or jumpers, or switches in this arrangement. The design is simplicity in itself. What's more, this board theoretically could be a better performer without the paddle, jumpers or switches that can limit overclocking performance.

Basic Features: Jetway 939GT4-SLI   Next Page

 
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46 Comments - Last by KublaKhan, 1612 days ago
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Interesting? by formulav8, 1630 days ago
Hmm, fairly interesting. Not something I need



Jason

Reply
Bus Mhz Numers mistake. by formulav8, 1630 days ago
in the specs page under Bus Speeds: 200 to 40MHz. Hopefully it is 400mhz :)



Jason

Reply
Wrong heading on P3? by Furen, 1630 days ago
I dont think "Overclocking: ULi M1695/M1567" applies to this board... shame on you for using an old review as a template, heh.

Reply
by Cygni, 1630 days ago
Page 1:

" The outer slots, colored yellow, are configured as x8 slots and can be combined in SLI mode using the included SLI bridge. The middle x16 slot, colored red, is a single x16 PCIe slot."

Thats not what the picture shows! ;)

Reply
Is this the same as the EVGA SLI board? by Furen, 1630 days ago
I was wondering if the EVGA SLI that you get for free when you purchase an Nvidia GeForce 7800gt/gtx is this same board (the board looks the same except for the color scheme)?

Reply
RE: Is this the same as the EVGA SLI board? by John, 1630 days ago
Yes.

Reply
RE: Is this the same as the EVGA SLI board? by OvErHeAtInG, 1630 days ago
In that case the evga deal is amazing.

Reply
by Avalon, 1630 days ago
This board sounds amazing.

Reply
Shock! by bob661, 1630 days ago
Yeah, I'm in shock. Guess I'll keep an eye out on this one.

Reply
Corrections by Wesley Fink, 1630 days ago
Thank you to those who pointed out errors in the review. The above items have been corrected.

Reply
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