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SLI
Scalable Link Interface from Nvidia. (Crossfire is AMD ATI)
You are linking the two interface connections, of two LIKE graphics cards.
The signal and Power connections. A lot of Amp's for power is needed, and a GOOD connection should be used.
Yes, I would definitely advise using the Retention Bracket.
If you have a loose connection, or a connection becomes loose over time, resistance in the connection will be created. Resistance = Heat.
The SLI Bridge connector's (Link) contacts will burn, as well as the contact pins on the graphics cards.
For a while you won't even notice, then as time ensues you start having major problems. By this time the contacts are so burnt, that you may as well fly the graphics cards at the neighbors barking dog.
(The contact pins on the bottom of the graphics card, as well as the PCI Express x16 slot contacts, will burn also. Means NEW motherboard)
Just for added info about SLI, here is SLI Zone from Nvidia,
http://www.slizone.com/page/home.html
(Suggest you start with - Learn - in the top header. Then go to the Community Forums)
Comments:
Nov 07, 2009
- Edit:
Sorry I forgot to add,
Each Nvidia graphics card that is SLI capable, has it's own SLI Bridge available for it.
What two Nvidia GeForce graphics cards are you planning to SLI together?
Nov 07, 2009
- Start with Learn>then click on FAQ in the drop down menu. (Frequently Asked Questions)
Nov 08, 2009
- Excuse me?
Where did you see it stated that they don't use Retention Brackets? Somewhere in the forum?
I gave the link so you would have more info about what Nvidia cards can be SLI'd. Never thought I should run all throughout the forum, and see if sum noob doesn't use a retention bracket! Maybe it was in reference to the old style of the stiff SLI bridges. Still not very intelligent.
Let's look at LOGIC.
1.Most of the big Nvidia cards are 10.5 inches long. 10 and a half inches.
2.They sit in a PCI Express x16 expansion slot, and are locked in, AT THE BOTTOM, and AT THE BACK.
3.The graphics card's metal bracket is attached to the metal frame of the computer case, by a single screw, AT THE FRONT, On TOP.
4.Most of the newer Nvidia cards are WIDE. Therefore, mobo manufacturers have gone to spacing the PCI Express x16 slots away from each other, to compensate for this.
Now you have a longer SLI Bridge.
Couple that with the new style of being FLEXIBLE.
Very thin, very flexible, compared to the OLD style of using the usual stiff PCB construction. (Printed Circuit Board of the FR-4 construction)
YES, the Front of the graphics card will be secured by the metal frame of the computer case.
NO, the back of the card will NOT.
These graphics card's are hanging SIDEWAYS inside the computer. That's around ONE POUND of graphics card (EACH) hanging sideways.
5.Gravity is always 'tugging' down on those graphics cards.
6.Simple vibration of walking across the floor repeatedly, where the computer is located, will make the graphics cards slowly ease over, at the back of the card.
Spreading the two graphics cards at the back over time, and pulling on the SLI Bridge.
Guess what will eventually happen if there isn't anything to hold down on the SLI Bridge?
Retention Brackets are offered by several sources. For this I concede. Mobo Manufacturers, Graphics Card manufacturers, H3ll you can even buy 'em on Ebay!
In reality, LOGIC dictates not even using two Nvidia graphics cards in an SLI configuration.
Not falling into the manufacturers marketing 'trap', of trying to sell what may be an unneeded computer hardware part.
Many buy computer parts based on someone else's uninformed decision.
"Bill states that he has FOUR graphics cards in SLI, and it's GREAT!"
Not true!
Did you know ONE Nvidia GeForce 260GTX, will OUTPERFORM, TWO GeForce 9800GTX's in SLI configuration?
A LOT cheaper too!
Two heads for running dual monitors. Can run a 60" LCD HDTV for a monitor if you wish!
Has 216 CORES!