Can i cross fire tree different ATI , 5870 series cards ? Tags: Graphics Cards Mobile Phones ATI Graphics Last response: January 31, 2011 5:39 AM in Graphics & Displays Share dharmdev January 30, 2011 10:56:02 AM how to cross conection tree different ATI , 5870 series cards ? pls help me i use for mobile phone code calculate gpu More about : cross fire tree ati 5870 series cards Maziar a c 169 U Graphics card January 30, 2011 4:49:39 PM You need a motherboard with 3 PCI-E slots along with an adequate PSU(850W+) m 0 l dharmdev January 31, 2011 3:36:49 AM i put 3 ATI , 5870 and i use cross conection after 5 min pc sutdoun and use 2 ati5870 all ok working my PSU (550W) i think my power lower pls help me thanx m 0 l Related resources can you cross fire 2 different cards - Forum can you cross fire 2 different cards - Forum Is it possible to do Cross Fire with 2 different amd cards if they have the same architecture? - Forum Cross Fire with two different cards? - Forum Can't find your answer ? Ask ! Get the answer Maziar a c 169 U Graphics card January 31, 2011 5:15:08 AM Maybe the third card is defective.Do all the cards work fine simultaneously ? m 0 l dharmdev January 31, 2011 5:17:45 AM but my one by one all working pls help me thanx m 0 l Maziar a c 169 U Graphics card January 31, 2011 5:18:51 AM This topic has been moved from the section Mobile Computing to section Graphics & Displays by Maziar m 0 l dharmdev January 31, 2011 5:23:37 AM can u pls tell me wat the problem pls m 0 l amnotanoobie a b U Graphics card January 31, 2011 5:35:22 AM Maybe your power supply is too low? Assuming that the 5870 pulls at least 150W: 150W x 3 = 450W This is only on the 12V rail, which most likely your 550W psu could only produce lower than 450W. You probably need at least 750W to power the whole thing. m 0 l dharmdev January 31, 2011 5:39:54 AM ok i put 1000w coolermaster and tell u agen thanx for help m 0 l Can't find your answer ? Ask ! Publish Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !