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Socket 1155 4 PCI-E 16x slots - Page 2

post #11 of 18
Quote:
Originally Posted by Cyclops;14598949 
If SB can't do Quad SLI why did MSI waste our time by making a board with 8 PCI-E slots?

If you're referring to the Big Bang Marshall, I'm pretty sure it can't even do tri-SLI, it doesn't use the NF-200 chipset, it uses some LucidLogix crap.
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post #12 of 18
Sb cannot usually do 4-way SLI, that is like saying X58 can do 4-way on every board because it has 32 PCI-E lanes.
you can run 4 way CF on all of those, but not SLI. Only the bigbang can do 4-way SLi the way you are thinking. in general NVIDiA never licenses 4-way at 8x/8x/8x/8x. Except on the 990x chipset they did. Some of those boards can run 3 way with a physx, the big bang can do 4 way tho.
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post #13 of 18
Even with a LucidLogic or NF200, you won't be running "true" x16. Those are just PCIe expanders.... they convert x16 PCIe links from the CPU to more lanes but the limitation is still there.

It is like placing a 4-way splitter on a hose... you're still limited in the amount of water.
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post #14 of 18
well that isn't totally true, its a FIFO MUX. so the NF200 has a buffer, basically acting as a bucket. Lets say its a 32x lanes you want to get, from a 16x hose. Well that buffer is like a bucket which allows you to fill up 16x twice to 32x. but then again that is where the added latency appears at the bottleneck.

Now there are also connections between the GPUs, and those extra lanes help that, so the GPUs communicate through that SLI connector but also through the lanes through the NF200 and the NF200 facilitates that at much greater bandwidth. But only a few GPUs take full advantage of that connection.

its a very complex device, a very sophisticated first in first out multiplexer.
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post #15 of 18
Quote:
Originally Posted by Sin0822;14606606 
well that isn't totally true, its a FIFO MUX. so the NF200 has a buffer, basically acting as a bucket. Lets say its a 32x lanes you want to get, from a 16x hose. Well that buffer is like a bucket which allows you to fill up 16x twice to 32x. but then again that is where the added latency appears at the bottleneck.

Now there are also connections between the GPUs, and those extra lanes help that, so the GPUs communicate through that SLI connector but also through the lanes through the NF200 and the NF200 facilitates that at much greater bandwidth. But only a few GPUs take full advantage of that connection.

its a very complex device, a very sophisticated first in first out multiplexer.

32 PCie 1.0 lanes which is the same speed as 16 PCIe 2.0 lanes. I don't get how you can claim that either one of those has "much greater bandwidth". As Duckie said, your 16x 2.0 hose will still only allow the flow-rate to move at 16x 2.0.


@OP: 1155 SB CPUs don't have enough lanes for 4 PCIe 2.0 16x lanes. X58 boards like the ASUS R3E w/ Expander and Gigabyte X58A-UD9 have 2 NF200 chips which is required by Nvidia to allow you to 4-way SLI.
Edited by PoopaScoopa - 9/11/11 at 2:57pm
post #16 of 18
Quote:
Originally Posted by HWI;14599229 
If you're referring to the Big Bang Marshall, I'm pretty sure it can't even do tri-SLI, it doesn't use the NF-200 chipset, it uses some LucidLogix crap.

It does use the lucidlogix chip on the fifth pci slot. The chip is used the same way that the NF200 chip is used. MSI said they went with the lucidlogix chip because their tests showed it had a lower latency. It comes with the lucid software for the built in crossfire/sli but even MSI doesn't recommend using it. They recommend using the bridges to either crossfire or sli. The chip is just a gateway.

I personally have the Big Bang Marshal and it is an excellent board. HTH

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post #17 of 18
Quote:
Originally Posted by Woodman4392;14917662 
It does use the lucidlogix chip on the fifth pci slot. The chip is used the same way that the NF200 chip is used. MSI said they went with the lucidlogix chip because their tests showed it had a lower latency. It comes with the lucid software for the built in crossfire/sli but even MSI doesn't recommend using it. They recommend using the bridges to either crossfire or sli. The chip is just a gateway.

I personally have the Big Bang Marshal and it is an excellent board. HTH

Woodman

You can't quad-sli 590s on the big bang marshall because it doesn't have a NF200 chip on the board, even though it has one on the internal bridge.
post #18 of 18
Quote:
Originally Posted by PoopaScoopa;14923466 
You can't quad-sli 590s on the big bang marshall because it doesn't have a NF200 chip on the board, even though it has one on the internal bridge.

I wasn't trying to imply that it could run quad SLI. I was explaining that the lucidlogix chip was used the same way the NF200 chip is used.

For the record, the Big Bang Marshal can run quad crossfire or SLI. It doesn't support 3 or 4 way SLI. Nvidia doesn't allow it.


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