macbrush

I have upgraded my Q9450 system to i7 3770 running on Gigabyte Z77-DS3H MB. Everything went very well, except my Firewire audio interfaces. I have a M-Audio Firewire Audiophile, and a Apogee Duet Firewire, both are running on a PCI NEC chipset firewire card.

I do get sound, but whenever a new process starting playing sound, I will get sound defects in the first few seconds. So if I start listening music in iTunes, it would sound like the audio interface is trying to sync the internal clock through the firewire, and I get sound skipping and jittering for a few seconds then everything would be fine (synced), as long as I don't pause, and continue to play. However, any other process start to make any sound would make all those skipping and jittering come back for a few seconds even though another process is already making some sound.

This is fine if I am just trying to watch a movie or listen to music. But for games, since they're all multi-track, its virtually not playable, the jittering and skipping would never stop.

From the look of the finder, I am guessing my system clock is running a little fast, e.g. icons are jumping faster than usual on the dock, hence the audio interface need to re-sync every time the OS start a new sound stream. That's just my guess, and I could be very much wrong.

Any suggestion or pointer would be very much appreciated.

Cheers
Kenneth

I just tried playing video on VLC, it was playing in fast forward. But since fsb has gone, I am a bit lost here. How do I set the system speed in i7 3770?

Thanks
Kenneth

[FIXED] Just installed Chimera v1.5.4 r1394 solved all problems!

I just upgraded my q9450 hack to i7 3770 on a Gigabyte Z77-DS3H board. The process was pretty painless, I just removed some unnecessary kexts, set BIOS to boot legacy and then it just works, with one exception; my PCI cards aren't working anymore. I know it is something to do with the PCI-PCIe bridge since Z77 doesn't natively support PCI slots, but I can't seem to find a solution. I have tried setting PCIRootUID=0 to no avail.

Any suggestion or pointer would be very much appreciated.

Cheers
Kenneth