Tom's Hardware > Forum > Motherboards & Memory > General Motherboard > Dual x16 PCI-E AM2+ Mobo's available?

Dual x16 PCI-E AM2+ Mobo's available?

Forum Motherboards & Memory : General Motherboard - Dual x16 PCI-E AM2+ Mobo's available?

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alienxo   05-04-2009 at 10:59:54 PM

Hey All,

I am looking for a AM2+ socket motherboard that has 2 x16 PCI-E 2.0 slots that actually support x16 speed for each slot. I am looking for a board that has some space in between the main two slots since I'm trying to put in two Geforce 8800GTS's and I don't want them squished together. I have only seen boards with the 3 slot configs and the first two PCI-E slots are always too close together. Aren't there any boards with just 2 x16 slots that area bit spaced apart?

Any recommendations?

System Breakdwon:

AMD Phenom 2 3.0ghz
(2) Geforce 8800GTS 320MB SLI
4GB PC-6400
X-Fi Sound Card

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mindless728   05-04-2009 at 11:49:54 PM
- 0 +

with those video cards, you don't need the full speed


Message edited by mindless728 on 05-04-2009 at 11:51:50 PM
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alienxo   05-05-2009 at 12:05:04 AM
- 0 +

So running those two cards each on a x16 pipeline won't make much of a difference versus having them on a x8 each? Can you elaborate as to why? Also the mobo you linked doesn't leave any room for my X-Fi card...the two video cards will be back to back in those two slots...


Message edited by alienxo on 05-05-2009 at 12:07:21 AM
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mindless728   05-05-2009 at 12:11:32 AM
- 0 +

the cards will not use the entire bandwidth that a pci-e 8x slot provides, especially pci-e 2.0, now if you were running 4870x2 or GTX295, then you would wnat the full link speed, but those cards are not that fast

http://www.newegg.com/Product/Prod [...] 6813130161
there will be one slot of space between the GFX cards

didnt know if your x-fi was pci or pci-e


Message edited by mindless728 on 05-05-2009 at 12:12:41 AM
Reply to mindless728
alienxo   05-05-2009 at 12:39:34 AM
- 0 +

Thanks for the info so far.

Let's say that for the sake of being able to upgrade the video cards one day I wanted to get a mobo with only 2 x16 PCI-E 2.0 slots (that both use x16 pipeline) that have a bit of space between them. I could get the mobo with 3 video card PCI-E 2.0 slots (AKA http://www.newegg.com/Product/Prod [...] 813157134) but it costs more money. Hence I'm looking for a mobo with only 2 x16 capable PCI-E 2.0 video slots to avoid the cost but still want the full x16 pipelines for both cards.

What would you recommend?

Reply to alienxo
mindless728   05-05-2009 at 01:19:25 AM
- 0 +

i would recommend getting the 2 pci-e for cooling, you won't notice any performance loss unless using ~$500 video cards (gtx295 or 4870x2), even the gtx285 would be fine on the x8 pci-e (Gen2)

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