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[Poll] Who is sidegrading to SB from 1366 - Page 5

Poll Results: Will you upgrade to SB from a 1366?

 
  • 10% (21)
    Sandy Bridge FTW!!!!!1!!
  • 65% (130)
    I sticking to my sweet 1366
  • 24% (49)
    I dont care/SPAM/Cant consider
200 Total Votes  
post #41 of 99
Thread Starter 
Quote:
Originally Posted by Wingzero View Post
You want to throw away your mobo and CPU to spend money on a downgrade so be it.
The misunderstanding, im not going to get SB, this is anti-1366-to-SB thread

Quote:
Originally Posted by Axon14 View Post
I was under the impression that the P67 chipset will have the same restrictions with the PCI-E lanes that the P55 chipset has?

Basically if there's no improvement, why go up you know? I suppose I'll wait for the benches.
the P67 got the restrictions, we need P67+NF200 benchs.
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post #42 of 99
I won't even bother upgrading from my 1156. I just don't see the point.
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post #43 of 99
Helllll no lol. Waiting for IVY.
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post #44 of 99
I will!!
     
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post #45 of 99
Thread Starter 
Quote:
Originally Posted by DorkSterr View Post
I will!!
OMG from a 980x????????????
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post #46 of 99
P55/P67 platform has 16 pcie lanes to the cpu no matter how many nf200's you have, it's only 16 to the cpu:

from my review at Hardware Canucks (link)...



It seems kind of complicated, but to keep it simple, remember...only 16 lanes go to the CPU.

There is no way to make more than 16 lanes go to the CPU.

So what happens is with a single card in the top slot, that slot runs at 16X so all 16 lanes are being used by it. In the diagram above you can see that all other 16X slots (black excluded because it is only 4X and runs to the PCH) run through the NF200 bridge. So as soon as you put another card in any of those red slots, the NF200 becomes 'activated'. What I mean by 'activated' is that it steals 8 lanes that go to the CPU...from the top slot. The top slot now has access to 8 lanes, and the NF200 has access to 8 lanes...for a total of 16 lanes, because that is all the CPU has.

That should be straight forward...if you have two cards in red slots, the NF200 has 8 lanes and the top slot has 8 lanes. The rest here is just what happens up to the NF200 and should be ignored if you are comfortable with the explanation above.

It gets a bit tricky here though because GPU-Z will show cards #3 and #5 as 16X if #4 and #6 are not populated. But these slots only operate at 16X up to the NF200 bridge. At that point, they then get combined and sent to the CPU over the 8 lanes the NF200 has commandeered from the top PCI-E slot. So the CPU is still just being fed at 8X from the NF200 bridge, and 8X from the top PCI-E slot...but #3/#5 run at 16X up to the NF200 bridge. If you then have a card in #4, slot #3 gives up half of its lanes up to the NF200 bridge and both #3 and #4 run at 8X up to the NF200 bridge, which then get combined onto the single 8X lane going to the CPU.

The same is true for slot #5/#6 if they are both populated.

Just remember, the LGA1156 socket only has 16 PCI-E lanes going to the CPU so that is all that it can possibly accept at any time. regardless of how many NF200 bridges are on the board. HTH
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post #47 of 99
Quote:
Originally Posted by mtbiker033 View Post
P55/P67 platform has 16 pcie lanes to the cpu no matter how many nf200's you have, it's only 16 to the cpu:

from my review at Hardware Canucks (link)...



It seems kind of complicated, but to keep it simple, remember...only 16 lanes go to the CPU.

There is no way to make more than 16 lanes go to the CPU.

So what happens is with a single card in the top slot, that slot runs at 16X so all 16 lanes are being used by it. In the diagram above you can see that all other 16X slots (black excluded because it is only 4X and runs to the PCH) run through the NF200 bridge. So as soon as you put another card in any of those red slots, the NF200 becomes 'activated'. What I mean by 'activated' is that it steals 8 lanes that go to the CPU...from the top slot. The top slot now has access to 8 lanes, and the NF200 has access to 8 lanes...for a total of 16 lanes, because that is all the CPU has.

That should be straight forward...if you have two cards in red slots, the NF200 has 8 lanes and the top slot has 8 lanes. The rest here is just what happens up to the NF200 and should be ignored if you are comfortable with the explanation above.

It gets a bit tricky here though because GPU-Z will show cards #3 and #5 as 16X if #4 and #6 are not populated. But these slots only operate at 16X up to the NF200 bridge. At that point, they then get combined and sent to the CPU over the 8 lanes the NF200 has commandeered from the top PCI-E slot. So the CPU is still just being fed at 8X from the NF200 bridge, and 8X from the top PCI-E slot...but #3/#5 run at 16X up to the NF200 bridge. If you then have a card in #4, slot #3 gives up half of its lanes up to the NF200 bridge and both #3 and #4 run at 8X up to the NF200 bridge, which then get combined onto the single 8X lane going to the CPU.

The same is true for slot #5/#6 if they are both populated.

Just remember, the LGA1156 socket only has 16 PCI-E lanes going to the CPU so that is all that it can possibly accept at any time. regardless of how many NF200 bridges are on the board. HTH
I appreciate that explanation mt. Thank you.
    
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post #48 of 99
Thanks man, great explanation.

I have to admit that the 2500k paired with the ASUS Maximus Extreme and the LIAN LI Lan Cool K62R1 "Dragon Lord" would look sick, so that is certainly appealing.

    
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post #49 of 99
I hit yes, because it depends upon the real benchmarks when they come out.
At a difference of ~$200, (i7-920 + P6T = ~320, i7-2600k + 1155mobo =~$500) it may or may not be worth it. If they do clock to 4.9 Ghz on air and scale decently under water and SS, I could potentially have a 5.5Ghz chip under my SS, which would be much faster than my current setup.
Clock for clock, SB beats Nehalem, since SB has a higher clock speed...It gains in lead as it OCS.
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post #50 of 99
Quote:
Originally Posted by cdolphin View Post
I hit yes, because it depends upon the real benchmarks when they come out.
At a difference of ~$200, (i7-920 + P6T = ~320, i7-2600k + 1155mobo =~$500) it may or may not be worth it. If they do clock to 4.9 Ghz on air and scale decently under water and SS, I could potentially have a 5.5Ghz chip under my SS, which would be much faster than my current setup.
Clock for clock, SB beats Nehalem, since SB has a higher clock speed...It gains in lead as it OCS.
They don't scale very well with cold. Most hit a max around 5.5 under LN2. I've hit 5 with the H70. Mine personally loves 4.8ghz. Anything more and it needs more and more volts.
    
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