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Gigabyte X58A-OC vs. Gigabyte X58A-UD7 - Page 7

post #61 of 135
i already tried explaining earlier bassplayer lol, its no use.

I just don't think he understands mobos enough and that is why i asked him to read the review.

BTW UD7's 24 phases are behind the X58A-OC's phases in voltage regulation, transient response, and ripple control. Also the X58A-OC'12 phases put out as much amperage as any current GB 24 phase design.
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post #62 of 135
Quote:
Originally Posted by FtW 420 View Post
For a sli setup with cards on air I would get the x58-OC over the ud7 just for the spacing.
The x16 slots are right next to each other on the ud7, no space for the top card to breathe, & you can't even put 1 card in the top slot & 1 card in the bottom slot for x16 + x8, it won't recognize a card in the bottom slot unless all 3 are filled.
The OC has a slot in between the x16 slots for breathing room.
On air, yes. For me on watercool, it's not a problem. Even with 3 slot spacing, the top card still needs assistance with air flow IMO. On a UD9, you have no choice if you want x16 from 4 slots. Same for the Asus extender board. In reality, if you want to run 3 to 4 slots in SLI/Crossfire, you need to watercool IMO.
     
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post #63 of 135
Most cards can do it fine, it just severely limits your overclocks. However, in terms of a standard two card SLI/CFX setup, the OC has the best layout putting a full two spaces between the cards. It's also standard ATX, as opposed to the UD9 (XL-ATX).
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post #64 of 135
Yeah, my Asus P7P55D-E Pro board has 2 slots in-between the PCIe slots, but no x16 for both, only x8. I should have tried the WS Supercomputer board with NF200, but that's then and now.....
     
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post #65 of 135
exactly this kind of layout on the X58A-OC, and the G1 Assassin for GB board is usually refer to as triple slot spacing for 2 way SLI, because there is room to use two triple slot GPus and run them both at 16x. The R3E also uses teh same layout.
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post #66 of 135
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post
i already tried explaining earlier bassplayer lol, its no use.

I just don't think he understands mobos enough and that is why i asked him to read the review.

BTW UD7's 24 phases are behind the X58A-OC's phases in voltage regulation, transient response, and ripple control. Also the X58A-OC'12 phases put out as much amperage as any current GB 24 phase design.
Dude?
I consulted Gigabyte myself about this?
I quote "The UD7 is capable of operating 3x PCIE cards on three PCIE slots with x16 Speed.
In this configuration it does not matter where and how the cards are aligned. If you howeverchose to only run 2x PCIE cards you would have to choose between 1&3 or 2&4 to run both slots at x16 speed."

Maybe you don´t know enough about the UD7

But one thing is true the OC has better spacing between the slots for air coolers.
Actually that would concern me since my gpu setup is only temporary until Kepler is released I won´t bother to watercool that is why I got 6950 Twin Frozr III with a good non ref air cooler.

The OC is definately superior in some factors no argue there but it will still be too expensive that is for sure.
And 500$ are just not worth the fun in my oppinion,espeacially when it is X58 anyway.
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post #67 of 135
Quote:
Intel X58 chipset has 36 PCI Express x1 lanes and on Gigabyte X58A-UD7 the manufacturer arranged these lanes in four PCI Express x16 slots.

The first PCI Express x16 slot works at x16 if the second slot is empty. If there is a video card on the second slot, both the first and the second slot will work at x8. The third and fourth PCI Express x16 slots work the same way: the third one works at x16 or x8, depending on whether the fourth slot is empty or not. So if you have two video cards it is really important to use the first and the third (and not the second) PCI Express x16 slots in order to get the best performance possible. In other words, this motherboard supports the following configurations: x16; x16/x16; x16/x8/x8; or x8/x8/x8/x8. The slots are compatible with SLI and CrossFireX arrays.

The motherboard also comes with two PCI Express x1 slots and one standard PCI slot.
The fourth PCI Express x16 slot is located at the edge of the motherboard, so if you install a dual-slot video card you will need a case with eight or more expansion slots. Also the first three slots are close to each other, so if you install a dual-slot video card on the first or second slots you will lose the slot right next to it.
Hmm. ok
    
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post #68 of 135
You spoke to someone who didn't know what they are talking about. The UD7 does NOT have an NF200 chip. X58 can only provide 40 lanes at a time... it's built into the chip. 36 lanes without a bridge chip (i.e. NF200).

I don't care what this person told you. Unless they magically created a new X58 chip, the UD7 cannot run three cards at x16 bandwidth (x16/x16/x16).
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post #69 of 135
believe me they are a great company but some things that their tech says are just lies. i would like the name of the tech because that guy should be reported.

The IOH X58 chipset ONLY has 32 lanes for PCI-E, it has 36 lanes but ONLY 32 are usable for PCI-E slots, same as EVERY X58BOARD. the max lanes that can be distributed throughout its PCI-E slots are 32. That means two slots can run for 16x/16x, if you add another card in there it goes down to 16/8x/8x, even in a 16x slot.


How can you run 16x/16/16x? even with 36 lanes that 48 lanes needed.

and NF200 is a special NVIDIA PCI-E bridge chip which takes the native 32 lanes of PCI-E and doubles the bandwidth to 64 lanes. the ONLY GIGABYTE BOARD WITH AN NF200 is the X58A-UD9, P67A-UD7 and so on, the top of the line GB boards one of them has an NF200, not the rest, and you have to have an NF200 to do 3 lanes of PCI-E at 16x each.

God why is it so hard for people to understand that we know what we are talking about?

honestly gigabyte hasn't set a price yet and retailers don't even have them yet. GIGABYTE is still in the process of deciding the prices for the regional branches. the X58A-OC is not a regional product, its an HQ initiative, so whatever HQ says goes.
Edited by Sin0822 - 5/3/11 at 4:15pm
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post #70 of 135
It's simple, X58 chip is 36 lanes with 32 for PCIe lanes = two x16 slots. NF200 chip adds 16 PCIe lanes = x16 slot per chip.

Want two x16 slots, just use a X58 based board. Want three x16 slots, use a X58 + NF200 chipset board. Want four x16 slots, use a X58 + two NF200 chips on the board.

UD7 is: 2 cards = x16/x16, 3 cards = x16/x8/x8 and 4 cards = x8/x8/x8/x8. Just saying for peeps in the dark guys.....
Edited by ezveedub - 5/3/11 at 5:34pm
     
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