Welcome to the MacNN Forums.

Nelsun · Feb 17, 2007, 12:31 AM

I hope someone here has insight to something that happened to my G5 yesterday. I heard a monentary buzz or grinding sound and then it froze and the fans all kicked in full power. All I could do was shut it down via the powerbutton.

I was running the Adobe Creative Suite and Safari and was on the web when it happened.

I have a 2.7ghz G5 with the liquid cooling system. It has 1gb of RAM and original 250gb harddrive. The OS is 10.4.8. I also added a 500gb Seagate hard drive in October-ish. This happened once before about 2 weeks ago. But I wasn't in the room and I came back to gind the fans going full and it was frozen.

Any insights are appreciated. I hope it's not hardware related and perhaps a software thing. I doubt the new drive added is the cause, but I suppose it's possible.

Thanks! Nelson

P · Feb 17, 2007, 11:08 AM

Grinding noise sound awfully like an HD breaking down, in which case it is likely to it again. If it's the old one or a new one is impossible to tell. Try checking SMART status (in Disk Utility) and running Apple Hardware Test.