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NF4 PCI-E 2.0 Compatiblity issues


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#1 pgamble

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Posted 24 November 2007 - 02:58 AM

Hi guys

I'm currently running an FX-60 with an Asus EAX1950Pro.

I'd like to know what the PCI-Express version is on the SLI-DR.

I'm about to get a Asus EN8800GT Top with is PCI-E 2.0 but apparently with compatibility with PCI-Express 1.1.

Should it work in the SLI-DR ? Is the SLI-DR PCI-E 1.1 or 1.0 ?

Cheers

Paul.

#2 Sharp

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Posted 24 November 2007 - 01:56 PM

The DFI is version 1.0a.

It should be backwards compatible but then some people say it doesn't quite work on certain boards.
(I can't give a definite answer to this.:()
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#3 radodrill

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Posted 24 November 2007 - 02:51 PM

current generation PCI-e 2.0 cards should be fully compatible with PCI-e 1 boards as long as you use the extra power connector; this may not be the case with future cards though.

The main change in the PCI-e 2.0 specs is that they requite full x16 bandwidth on the GFX slots as well the the capability of delivering double the power through the slot.
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#4 kitfit1

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Posted 25 November 2007 - 09:28 AM

As has been said, it should work fine. Just make shure you put it in the top pci-e slot, as that will give you the full x16.

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#5 pgamble

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Posted 26 November 2007 - 11:23 AM

Thanks guys

Has anyone tried one yet - i.e. any 8800GT ?

I'll let you all know what happens when mine arrives sometime after 7 December.

Cheers

Paul

#6 bombatwist

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Posted 29 November 2007 - 04:31 PM

so i keep hearing that the PCIe 2.0 cards dont work on PCIe 2.0 motherboards.

i e-mailed DFI and they told me that my mobo is PCIe 1.0a and that they dont have any PCIe 2.0 cards to use to test if they work on the motherboard or not.

i was just wondering if anyone has the board i have and has tried putting on a PCIe 2.0 card on it and see if it works or not.

thanks.

#7 slick2500

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Posted 29 November 2007 - 04:40 PM

PCIe 2.0 is completely backward compatible with PCIe v1.x, so graphic cards and motherboards designed for v2.0 will be able to work with v1.0 and vice versa.[3] According to Anandtech:

The transition to PCIe 2.0 won't be anything like the move from AGP to PCIe. The cards and motherboards are backwards and forwards compatible. PCIe 1.0 and 1.1 compliant cards can be plugged into a PCIe 2.0 motherboard, and PCIe 2.0 cards can be plugged into older motherboards. This leaves us with zero impact on the consumer due to PCIe 2.0, in more ways than one.

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#8 radodrill

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Posted 29 November 2007 - 04:45 PM

Current generation PCI-e 2.0 cards are backwards compatible with PCI-e 1.x motherboards; future cards may not be, as the PCI-e 2.0 specs allow twice as much power to be drawn from the PCI-e slot.
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#9 bombatwist

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Posted 29 November 2007 - 04:57 PM

so i keep hearing that the PCIe 2.0 cards dont work on PCIe 2.0 motherboards.


ERR sorry! meant to say

so i keep hearing that the PCIe 2.0 cards dont work on PCIe 1.0a motherboards.



#10 bombatwist

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Posted 01 December 2007 - 10:02 PM

Okay i got my card and i can confirm that this motherboard works with PCIe 2.0 cards [:

btw the card im using is a radeon HD 3850

#11 Kurtz

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Posted 03 December 2007 - 07:37 AM

I'm about to go with a 8800GT on new egg.
should I trust wiki and go for it?

#12 Sharp

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Posted 03 December 2007 - 07:59 AM

It should work.

I have made this a sticky.
If you have a PCI-E 2.0 gfx card and it works post here (and if it doesn't).
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