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XFX R7-250E Crossfire with A10-7850k? - Page 2

post #11 of 13
Subbed, I might actually order one just to try - Got 14 days to return it with all funds refunded so only thing I lost, should it not work, is 15 minutes and a trip to the postoffice.
Frozen Kaveri
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10-7850K Gigabyte F2A88X-UP4 XFX R7 250 G.SKILL TridentX 2400Mhz CL9 
Hard DriveHard DriveHard DriveCooling
Samsung EVO 120GB Samsung EVO 120GB Crucial M500 240GB Little Devil Phasechange 
OSPowerCase
Windows 8.1 Corsair AX860i Lian Li PC-A51 
CPUMotherboardGraphicsRAM
4770K  ROG Maximus VI Impact HD 7990 Corsair Platinum 2666Mhz 
Hard DriveCoolingCoolingCooling
Samsung 830 SSD 3 x Alphacool NexXxoS UT60 240 EK Supremacy Precise Mount Add-On Naked Ivy CPU... EK Supremacy - Clean full nickel 
CoolingCoolingOSPower
Alphacool Heatmaster II Gentle Typhoon 1850RPM Windows 7 X64 Silverstone Strider Evolution 750W 
Case
Caselabs S3 w. pedestal 
  hide details  
Reply
Frozen Kaveri
(11 items)
 
 
CPUMotherboardGraphicsRAM
A10-7850K Gigabyte F2A88X-UP4 XFX R7 250 G.SKILL TridentX 2400Mhz CL9 
Hard DriveHard DriveHard DriveCooling
Samsung EVO 120GB Samsung EVO 120GB Crucial M500 240GB Little Devil Phasechange 
OSPowerCase
Windows 8.1 Corsair AX860i Lian Li PC-A51 
CPUMotherboardGraphicsRAM
4770K  ROG Maximus VI Impact HD 7990 Corsair Platinum 2666Mhz 
Hard DriveCoolingCoolingCooling
Samsung 830 SSD 3 x Alphacool NexXxoS UT60 240 EK Supremacy Precise Mount Add-On Naked Ivy CPU... EK Supremacy - Clean full nickel 
CoolingCoolingOSPower
Alphacool Heatmaster II Gentle Typhoon 1850RPM Windows 7 X64 Silverstone Strider Evolution 750W 
Case
Caselabs S3 w. pedestal 
  hide details  
Reply
post #12 of 13
Thread Starter 
Thank you, that is so awesome. Tried emailing AMD and they haven't gotten back t me yet so only way is to test. I'd do it but I don't have the money to spare at the moment, I was going to start saving for one if it did.
post #13 of 13
Thread Starter 
I think I found my answer from a review on the Sapphire version of this card.
Quote:
Pros: -Recognizes as an R7 200 Series Card.
-512 Shaders
-under $100

Cons: -NOT an Oland chipset
-IS a Cape Verde chip
-CANNOT Dual Graphics with Kaveri

Bottom Line: *** DUAL GRAPHICS - READ THIS ***
I took the risk of buying this to see if it would Dual Graphics with Kaveri. If anyone knows something about this tech and combo, the Kaveri has 512 shaders and the 250's normally have 384. This throws the sync off a little bit and doesn't allow true crossfire as it was originally intended.
That's what the beta drivers and Frame Pacing have fixed. However, this "250" has 512 and offered a chance to sync properly and should make Dual Graphics run properly and synchronously.
BUT this is actually a Cape Verde chip (actual 7750, not "rebranded" like some call the R Series) updated with Mantle and R7 features. Cape Verde chips cannot communicate with Kaveri like the Oland can. THAT is the real difference between the Radeon 7000 and R Series GPUs, the chipsets.
I tried every combo of settings between the IGP/PEG and Shared Memory in Bios, and the 13.12, 13.30RC3, 14.2 and newest 14.3 beta drivers from AMD. Not once did the option appear in Catalyst.
Always had whichever adapter I had my monitor plugged into as the Primary Adapter, and the other was the Disabled Adapter. Device Manager showed both as enabled.
FYI, I used DDU in Safe Mode to uninstall the drivers like EVERYONE should before changing or updating Display Drivers. If anyone can get this to work, LET ME KNOW. But since there is barely ANY info on the Dual Graphics compatability, I intend to provide as many details as possible.

So short answer, no it sadly will not work. AMD really needs to step it up an enable Cape Verde compatibility as it will allow a true Dual Graphics config.
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