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adamberti · 02:00 AM

Well, I brought my computer into a local service centre on Tuesday because the FireWire wasnt working and the Airport wasnt working. So they gave me a call on Wednesday and said they were ordering a new Logic Board and airport card to install, the currents ones were..."bad." So I got my computer back today (YAY!) and things seem fine, and low and behold I've been doing the usual internet thing for 20-25 minutes and not a single fan has come on yet!! And the battery has been charging the whole time. So I guess add me to that list of people with changed fan behaviour.
[UPDATE] Well just about as soon as I pressed the post message button the old side fan kicked in like usual, but it was still longer than usual. No quieter than before the replacement either. I just had to open my stupid mouth to brag, didnt I...

Unfourtunatly, as what seems to be the case with a lot of a people, they scratched the top of the machine with a nice 1" scratch. I don't know how they do it, but it seems to be a common theme. And I don't understand because I like this store and everyone who works there loves their macs and treats them so careful! I've had this baby 5 months, and the only scratch is a tiny one on the bottom. I give it to them for 4 days and look what happens. Now its not a huge deal to me, but it is rather annoying, not sure what to do now, I should have told them when I picked it up, because now they will probably blame me for it.

Other than that, I'm just waiting for my new 30GB iPod to test out that firewire port.

pamelah · May 3, 2003, 02:02 AM

just a question....did you have the "sizzling" before the new board and/or after with the new one?

all2ofme · May 3, 2003, 02:23 AM

It was exactly the same with my TiSD when I got it back (having had the logic board, right hand fan and the SD replaced). The fans took longer to come on, but come on they did. 10.2.5 didn't seem to make it any better either.

It's the fan on the RHS which makes the racket in my machine, when the back fan comes on it's not all that much louder.

And FWIW I still get the sizzle with my new logic board.

adamberti · May 3, 2003, 11:46 AM

Originally posted by pamelah:
just a question....did you have the "sizzling" before the new board and/or after with the new one?

No sizzling yet, but I've barely used it and I will find out later today and let you know. I cant remember exactly what caused it before, cause it was only some of the time, so I'll do my usual thing and it should come back.

Rubens · May 3, 2003, 12:37 PM

guys the fan behaviour in the last tiBook is a design fault. My 17inch powerbook's fan has only turned on once in the 3 weeks I've owned her.

OpenStep · May 3, 2003, 03:43 PM

Before my G4/400 went back to Apple for repairs the fan would always be on, every 15 mins it would come on. It came back from apple with a new logic board too and now the fan almost never comes on. They must have put in a later rev logic board that had better thermal design.

all2ofme · May 3, 2003, 06:05 PM

I'm not sure I agree. I've heard (and believe) several members of this board who maintain that their Tibooks aren't noisy at all, let alone leaf-blowers like mine

And I'm sure that there's a large number of people who don't even come to these boards to post because they are perfectly happy with their machines.

At the same time, I'd be happy to have my machine as quiet as you say yours is!

Originally posted by Rubens:
guys the fan behaviour in the last tiBook is a design fault. My 17inch powerbook's fan has only turned on once in the 3 weeks I've owned her.

adamberti · May 3, 2003, 06:17 PM

A couple more updates:

The fan still comes on often, not as often though. However it does go off much earlier, I can tell easily on this point.

My Serial number doesnt show up in the Apple System Profiler, its just a "-". I guess my new Logic board has a different serial number I guess. I looked on the RAM slot casing, and there is a serial number there that is not the same as the machines, so I guess that is the new serial number. This machine is a week 46, and the new serial number is a week 49, so they must have fixed whatever problem it was relatively soon after the relase. And of course it has new Ethernet and Airport serial numbers as well. Is anyone with a 49 release or later *sure* they have fan problems?

Lastly, and unfourtunatly, there are a lot more scratches on this machine than I had originally noticed. I'm a little pissed off at them now, how hard can it be??? Theres even a huge scratch inside the battery area!

I havent noticed the buzzing/sizzling like I had before, but I'll keep listening and see what happens.

And to Rubens, I agree there was a fault in the first run of the books, but your computer has 23% more volume to put all that stuff and dissspate the heat, so I do not think a direct comparision is worthwhile.

mrtew · May 3, 2003, 06:42 PM

Originally posted by adamberti:
And to Rubens, I agree there was a fault in the first run of the books, but your computer has 23% more volume to put all that stuff and dissspate the heat, so I do not think a direct comparision is worthwhile.

I got the fourth TiGz Superdrive at the Apple store here well before most people that ordered them from Apple online got them and is has a very very quiet fan that is on pretty much but keeps the Ti totally cool most of the time... in great contrast to my HOT Ti400 and Ti667. I don't think there was a design flaw, just a batch of bad fans or something and I don't think they were in the very first ones.

adamberti · May 4, 2003, 01:26 AM

Originally posted by mrtew:
I got the fourth TiGz Superdrive at the Apple store here well before most people that ordered them from Apple online got them and is has a very very quiet fan that is on pretty much but keeps the Ti totally cool most of the time... in great contrast to my HOT Ti400 and Ti667. I don't think there was a design flaw, just a batch of bad fans or something and I don't think they were in the very first ones.

Hmm, that throws my theory out the window then. But I do not think it was the fan that was the problem, my fans are the same loudness as before. (Although I guess there were some bad fans where people had VERY loud fans) What is different now is when they come on and go off. I don't know all the components involved in that, but I know its more than just the fan. So something has changed on this praticular logic board since the last one. I'm going to watch a DVD and check out the fan behaviour, cause thats what really bugs me, when I need to have the volume low but then I cant hear the movie over the fans!

issa · May 4, 2003, 07:10 AM

Hi adamberti.

As further encouragement to throw out your theory about the dates of the circuit boards directly affecting fan action, I happily point out that I took delivery of my 1GHz TiBook on November 15th of last year. The model was only announced on Nov. 7, so this surely makes it one of the first off the assembly line. As with mrtew, my fans have functioned the way I understand the proactive cooling system was designed for the last generation of TiBook. The right-hand fan is on a fair amount of the time, but is not overly noisy. (That blower is rated at 19 decibels.) And, as with mrtew, my 1GHz TiBook has consistently run far cooler than my first-generation 500MHz TiBook. While it may not be quite as quiet in terms of fan noise, my 1GHz TiBook also runs cooler than did my Pismo or WSII. I am currently looking forward to soon celebrating the first 6 months my 1GHz TiBook has performed brilliantly, and I intend to keep using it until we see notably faster, more power-efficient processors in the PowerBook.

There is no doubt that some units suffered defective parts that made the fans run more than they should, or faster than they should. (They are variable speed blowers.) And some likely had out-of-spec fans. Overall, though, I don't believe there was a design flaw, nor a percentage of faulty units that exceeded any other PowerBook model in the past.

Have a good one, eh!

adamberti · May 5, 2003, 12:46 AM

Originally posted by issa:
Hi adamberti.

As further encouragement to throw out your theory about the dates of the circuit boards directly affecting fan action, I happily point out that I took delivery of my 1GHz TiBook on November 15th of last year. The model was only announced on Nov. 7, so this surely makes it one of the first off the assembly line. As with mrtew, my fans have functioned the way I understand the proactive cooling system was designed for the last generation of TiBook. The right-hand fan is on a fair amount of the time, but is not overly noisy. (That blower is rated at 19 decibels.) And, as with mrtew, my 1GHz TiBook has consistently run far cooler than my first-generation 500MHz TiBook. While it may not be quite as quiet in terms of fan noise, my 1GHz TiBook also runs cooler than did my Pismo or WSII. I am currently looking forward to soon celebrating the first 6 months my 1GHz TiBook has performed brilliantly, and I intend to keep using it until we see notably faster, more power-efficient processors in the PowerBook.

There is no doubt that some units suffered defective parts that made the fans run more than they should, or faster than they should. (They are variable speed blowers.) And some likely had out-of-spec fans. Overall, though, I don't believe there was a design flaw, nor a percentage of faulty units that exceeded any other PowerBook model in the past.

Have a good one, eh!

Thanks for the added info Issa, I was going to go see what others had said on the Apple Discussion Forums, as I've never read the long thread on Fan Noise, but www.info.apple.com is down..??? I've never seen it down before. I wonder whats getting introduced tomorrow?

And I no can still report no sizzling yet either. Not sure whats up with that. I thought I read that it was something with the RAM and that it was "normal" and had no reason to be changed/'fixed'. Maybe I just need some more usage to get it to happen.