Eyefinity 6 5870 2GB - Works but not perfect

[Shiznit One]

Has anyone had 100% success with a Sapphire Eyefinity 6 5870 2GB card? I realize it's not a reference card but I've been pulling my hair out nonetheless.

 

So far:

- Made my own custom EFI rom using extracted factory rom, then reflashed

- Using experimental ATI Chameleon build from [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] and manually installed Chameleon bootloader (RC5 693)

- GraphicsEnabler = Yes

- UseAtiROM = Yes

- Customized EFI 1002_6898.rom in /Extra

- Zonalis framebuffer appears to load (while watching verbose boot)

 

I've heard complaints of 100% fan. Not getting that, but it's definitely pretty noisy compared to the 5770 I also have. Also can only get two MDP ports to work and LED ACD only works with DVI converter (not directly plugged in with MDP cable). Three displays will not work no matter what combination of monitors I try: 20'' ACD, 23'' ACD, 24'' LED ACD. The 23'' and 24'' work fine at the same time with 1920x1200 resolution. I've also tried all sorts of adapters; MDP --> DVI, MDP --> HDMI, MDP --> HDMI --> DVI, Apple's MDP --> DVI, and Sapphire's MDP --> DVI.

 

Anyone have any ideas on reducing the fan noise or getting a 3rd MDP enabled? (The fan noise seems to be related to power management as the speed does vary depending on load -- it's just too fast.)

 

Thanks!