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Tom's Hardware > Forum > Graphic & Displays > AMD Radeon > [Solved] How many bridges needed in crossfire? 1 or 2

[Solved] How many bridges needed in crossfire? 1 or 2

Forum Graphic & Displays : AMD Radeon [Solved] How many bridges needed in crossfire? 1 or 2

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Best answer from treefrog07.

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kanzaz   02-09-2012 at 08:01:38 PM

i would also like to no if im using a high enough wattage of psu.
AMD FX-8120 Octa-Core Processor/8GB DDR3 ram/2 hd radeon 6770
/OCZ ModXStream Pro 700W Modular High Performance Power Supply compatible with Intel Sandy Bridge Core i3 i5 i7 and AMD Phenom/Motherboard: Biostar TA990FXE.? thanks in advance.

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treefrog07   02-09-2012 at 10:19:23 PM
Best answer

Crossfire requires one bridge (between the 2 cards); there are 2 sets of bridge connectors on AMD GPUs to allow tri-fire. Your power supply is more than adequate.

Reply to treefrog07
hugostiglitz   02-09-2012 at 11:12:43 PM

Some cards require 2x connections.

both my 5870 & friends 5830's both need 2 crossfire bridge cables in order to enable Xfire.

if both cards have 2x CFX connectors you will need 2 cables.

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------------------------------ 2700K @ 4.5 | Maximus IV Extreme-Z | 16gb RipjawX DDR3 1866mhz | 2x 2GB 5870's | Eyefinity @ 5760*1080 | 2x WD Black 1TB Raid 0 | EK&XSPC Water Cooled | Thermaltake 1200w PSU | Thermaltake Tai-Chi Case
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PaperBoy   02-10-2012 at 12:28:05 AM

2 way CF = 1 bridge

3 way CF = 2 bridge

4 way CF = 3 bridge

Same goes for SLI

Reply to PaperBoy
jasont78   02-10-2012 at 12:42:54 AM

hugostiglitz wrote :

Some cards require 2x connections.

both my 5870 & friends 5830's both need 2 crossfire bridge cables in order to enable Xfire.

if both cards have 2x CFX connectors you will need 2 cables.




wrong 1 for 2 way crossfire the extra connecters are if you want to connect 3 plus cards
been there, done that, wont do that again!

Reply to jasont78
esrever   02-10-2012 at 01:03:46 AM

you only need 1 but putting 2 does hurt either.

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------------------------------ sllaw eht no nettirw gnihtemos saw ecno ereht
 Reply to esrever
kanzaz   02-18-2012 at 08:25:45 PM

thanks alot that sums it up greatly.

Reply to kanzaz
bystander   02-18-2012 at 09:17:55 PM

esrever wrote :

you only need 1 but putting 2 does hurt either.



Most the time, people don't have issues, but sometimes it will cause weird problems. It's best to leave it off.

------------------------------ i7 920 @ 4.0Ghz, Gigabyte GA-X58A-UD3R, MSI Nvidia GTX 680, 6 Gb Kingston HyperX @ 1333 Mhz, Antec 850 PSU, 2X WD Cav Black HD 1Tb, Silverstone Hawk 2 RV02B-W Case, 27" ACER HN274Hbmiiid 3D monitor
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