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Tredvesone posted a topic in ATiHi. I just installed a XFX Radeon HD 6870 2GB GDDR5 ("Dual Fan -DD" edition), but I'm worried my Duckweed framebuffer is not ok. Could someone verify or is everything ok? I can play chess and DVD player. Cinebench score is only 36.10. That is too low... what to do? OS X Lion 10.7.2 Chameleon version: Chimera 1.7 org.chameleon.Boot.plist: <key>GraphicsEnabler</key> <string>Yes</string> <key>AtiConfig</key> <string>Duckweed</string> ioreg | grep ATY +-o ATY,Duckweed@0 <class AtiFbStub, id 0x100000336, registered, matched, active, busy 0 (697 ms), retain 7> +-o ATY,Duckweed@1 <class AtiFbStub, id 0x100000337, registered, matched, active, busy 0 (7 ms), retain 7> +-o ATY,Duckweed@2 <class AtiFbStub, id 0x100000338, registered, matched, active, busy 0 (8 ms), retain 7> +-o ATY,Duckweed@3 <class AtiFbStub, id 0x100000339, registered, matched, active, busy 0 (6 ms), retain 7> bdmesg Using PCI-Root-UID value: 1 Framebuffer @0xE0000000 MMIO @0xFBAC0000 I/O Port @0x0000BE00 ROM Addr @0x00000000 ATI card POSTed, reading VBIOS from legacy space (AtiConfig) Framebuffer set to: Duckweed Nr of ports set to framebuffer's default: 4 ATI Barts AMD Radeon HD 6870 Series 2048MB (Duckweed) [1002:6738] (subsys [1682:310a]):: PciRoot(0x1)/Pci(0x3,0x0)/Pci(0x0,0x0) I noticed that my 1682:310a is a different from others xfx cards. Probably the 2GB? Btw: The fan is working all the time, not a full speed, but not like it does in bios/boot area. Then its pretty darn silent. In Linux Mint as well. When OS X Lion login screen appears the fan kicks in again, if you catch my drift. So there is a problem in OS X and fan control. Thank you in advance