crossfire and sli question

[mudkip]

So this board does x16 x16 dual or x16 x8 x8. why cant it do x16 x16 x8? also will a x1100t bottle neck with to hd6850s?

[TechJackass88]

ATI crossfire = BUGGY, doesn't matter who says what.
nVidia SLI = Less buggy.
x16 x16 x8, theoretically possible, but my mony is on controllers pipeline limitations.
1100T is as fast as it gets here, OC to 3.8 or 4.0 and bottleneck will be at ram...

[FiNAS]

mudkip wrote:
So this board does x16 x16 dual or x16 x8 x8. why cant it do x16 x16 x8? also will a x1100t bottle neck with to hd6850s?

x16 x8 x8 i supported for three cards, or x16 x16 for two. x16 x16 x8 is not supported.

The 990FX has 42 pcie lanes. If x16 x16 x8 mode was to be supported, only two pcie lanes would be left for use on the other pcie slot and motherboard components ( lan, asmedia usb controller, asmedia sata controler, sound.. ). Its a chipset limitation.

[mudkip]

I have a coolnaster v6 push/pull you think its enough to get 4ghz?

[speed]

there is only one way to find out my man. That is to run it up and see. intel burn test it. If it doesn't the Corsair H-80 will.

[mudkip]

Might just have to do that this weekend.

[66racer]

Anyone SLI two msi 560ti twin frozr IIs? Im concerned that the room between the top card and the bottom will be too small for air flow.

[liberato87]

66racer wrote:
Anyone SLI two msi 560ti twin frozr IIs? Im concerned that the room between the top card and the bottom will be too small for air flow.

me.



there are two slot of space between the 2 cards so the temperature are very fine.



with tamb of 26-27 degrees.

check this http://www.xtremehardware.it/forum/f142/haf_912_r_o_g_liberato87-27038/

[TechJackass88]

I get to 4.0 with H50, lowest grade cooler (hey for $40 on sale cant complain) with temps maybe slightly warmer than human body,
with fans spinning at 800 RPM which is pretty low.
I have SLI EVGA 560Ti, but as of now I use PCI-E Wifi card, so portion of intake fan on top card is a bit abstructed.
anyway, let us know how your OC goes, these chips so easy to overclock.