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how to crossfire hd7750 with hd7770? - Page 2

post #11 of 12


According to the chart you need to bridge them. If your 7750 does not have a crossfire bridge tab, then you're probably out of luck.
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(10 items)
 
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CPUMotherboardGraphicsGraphics
AMD Phenom II X4 960T TA990FXE AMD Radeon HD 6700 Series AMD Radeon HD 6700 Series 
RAMRAMCoolingMonitor
Patriot Memory  Patriot Memory  NZXT Kraken x60 Acer H233H x 3 
KeyboardPower
Corsair Vengeance k90 Rosewill Hive 750 
CPUMotherboardGraphicsRAM
Phenom II 1045T MSI 990FXA-GD80v2 XFX Radeon HD 6770 Samsung 
Hard DriveOptical DriveCoolingOS
Corsair Force3 LiteOn Xigmatek Gaia Win7 
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Acer H233H Rosewill Hive 750 DIYpc Alpha GT3 
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post #12 of 12
i bought a Sapphire HD 7750 in Feb after my XFX 6770 konked out. I wasn't too happy with with the 7750's performance so I shelled out for a Sapphire HD 7770 Vapor X. I didn't realize that I could crossfire the 7750 as I didn't see the xfire output (apparently, it can be done internally!). Managed to crossfired 7770 (main) and 7750 (2nd) without using the external bridging cable and was please to see the improvements of about 50-70 % in FPS. IMO, it was just a coincidence that I have the right components to get the xfire to work with two different GPUs but from the same 7700 family. Had I known that 7750 (without the xfire output) be xfired internally, I would have just bought a 2nd 7750. Oh well... at least it works smile.gif
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