What CrossFire Can i Do?

kellaway225 · 4 Apr 2010 at 16:36

I heard that there are several different types of crossfire and i was wondering with my 5850 and this : http://www.overclockers.co.uk/showproduct.php?prodid=MB-355-AS&groupid=701&catid=5&subcat=1481

what kind of crossfire can i do? could i just get another 5850 connect it up to the other PCi16 slot and run it in Crossfire? of course using the crossfire cable

also what is the difference between the different versions of crossfire - any performance differences?

bhavv · 4 Apr 2010 at 16:44

I dont know what you mean, the only different types of crossfire I can think of are 2, 3, or 4 cards.

2 cards is obviously the most common, you just buy a second one and add it to the second slot with a crossfire bridge connecting them.

mattjd · 4 Apr 2010 at 16:50

You should be fine with x2 5850's in that mobo because it supports x8 / x8 instead of x16 / x4.

kellaway225 · 4 Apr 2010 at 16:54

i swear i read something about symmetrical crossfire or something
now to decide if i should do it with my case - Coolermaster Scout
When connecting a Card to the PSU - does it have to have BOTH connections going into the PSU, the PSU has 2 red connections 6pin (i think) and at the moment i have BOTH cables running from the PSU into the 5850 - if thats correct that means my PSU cant do crossfire as i dont have any red connections left or should i only be using one connection to the 5850 from the PSU?

mattjd · 4 Apr 2010 at 16:55

kellaway225 said:
i swear i read something about symmetrical crossfire or something
now to decide if i should do it with my case - Coolermaster Scout
When connecting a Card to the PSU - does it have to have BOTH connections going into the PSU, the PSU has 2 red connections 6pin (i think) and at the moment i have BOTH cables running from the PSU into the 5850 - if thats correct that means my PSU cant do crossfire as i dont have any red connections left or should i only be using one connection to the 5850 from the PSU?

650W mininum for x2 5850's. you need x4 6 pin connectors.

mattjd · 4 Apr 2010 at 16:56

symmetrical corssfire is x8 / x8 with the 2 cards.

kellaway225 · 4 Apr 2010 at 17:04

mattjd said:
650W mininum for x2 5850's. you need x4 6 pin connectors.

then i would need a new PSU if i were to go for crossfire, i guess its not needed right now will look in more detail when it comes time for a graphics upgrade

thanks for the info

RJC · 4 Apr 2010 at 18:27

What size psu are you running at the moment.

kellaway225 · 4 Apr 2010 at 19:32

650w Modular, OCZ i think