I wish I wouldn't have to say this, but I'm dissappointed with the new G4 combined sink & fan.. It's making a lot of noise.

The Pegasos 2 is two or three times as noisy as my P4/Celeron. I admitt I built my P4/celeron especially to be quiet so it is indeed very quiet. The Arctic Cooling TC active fan is barely making any noise, the PSU is as silent as they come, and the harddisk is a nice Seagate 7200 suspended in rubber, as is the disk in my Pegasos.

The Pegasos CPU fan is getting on my nerves. I have to find a way to shut it up. Call me over-sensitive, but I can't have this on my desktop. :(

In case anyone wonders, it does not sound broken. It sounds as if it's constantly running at it's top speed, unlike the Arctic Cooling TC, which adapts to the temperature of the processor.

Install a silent Papst fan.

Hmm, one more...
Seriously, BBRV, what HAS been the reason the Peg2 didn't get the nice low power G4?

WATTs happening here!
You did ask what could be a measurement where Pegasos can succeed over x86 - it's exactly that.
Call it SPECint oder (Vector) MFLOPS per Watt. I'm sure Motorola would have thought it
interesting to have a demonstration platform for the embedded (Linux?) market that shows their
focus on low power chips without the neccessity of active cooling had been the right choice...
I'm sure most people would have spent a few buck more if in doubt to get a CPU without annoying
and unreliable moving parts, one of they key advantages of Pegasos so far.

Does replacing the old fan void the warranty of the new cpu-cards (I mean, it has now a fan power connector)? If it is that noisy, I would replace it with a papst myself.

You could always have a look on this link!

You should also read this thread!

Quote:
I don't know if it's better than the one in first production run, but I'd assume it's better.

And unlike the old one, it's not soldered to board, so you can replace it easily & without voiding the warranty.

The 7447 is as it is guys. There is not much we can do about that. The 7447A lowers the power requirements and we should be able to have a passive solution in the not too distant future. We will sell a single CPU card upgrade when it is ready.

In the meanwhile, keep in mind that the 970 has the same problem, in fact even more. When you throw in other issues like AltiVec it becomes a big balancing act to create the best result with many factors under heavy consideration. For example, using AltiVec makes IBM's G3 not viable and then you have the performance issues (but, it is still fast and good enough for most things). The 970 and 7447 support AltiVec, but then you need an active cooling solution (not that AltiVec has anything directly to do with that). Of course, you could always lower the frequency, but then again you are balancing other issues against the performance. And, as long as we are at it lets go to the 64 bits discussion on the 970, which creates some disadvantages outside of server applications. In the end, you are faced with a range of choices and balancing these in the best way possible still makes *we think* the PowerPC architecture more attractive to consumers. Now, we need to think about the best way to market this...

Ultimately, the goal will be to work closer and closer with the CPU vendor so that together we approach OEMs, get the volumes up lowering costs and engineering better and better performance and efficiency as we move ahead.

R&B

I think the question is why the 7447NB was not chosen. My guess is that the answer is because at most chip retailers that chip is not in stock. Taking that into account (and for the better price) it was okay to choose the 7447LB which is in stock.

The NB type runs colder compared with the LB type but is also around 35 US$ more expensive

I don't like saying it but if you want more speed, power and the like people you will have to start accepting fans in your systems. Yeah some could be quiter but they are going to need to be there. I do think that Genesi should make the fans on the G4 with a connector instead of soldiered directly to the proc card so that you could exchange it with one you want easier, which might help ease the bickering about the noise.

Just my 2 bits.

>We will sell a single CPU card upgrade when it is ready

If a P4 box can be made virtually silent, so should a PowerPC-based Pegasos.

Problems with adaptive PC fans:
A) most don't even fit
B) the connector has 3 wires instead of 2
C) the temperature ranges don't fit the PowerPC

Any ideas of how to overcome these?

I've looked at the solutions presented here, and I've purchased a Zalman Northbridge Cooler (NB47J) for experimentation.

There's also this one from Spire:
http://www.dustin.se/default.asp?ORIGIN=shopping/ProductDetail.asp?PID=5010039227

I doubt it will really produce only 12.3dB at 4500 RPM, but at least it's a 2 pin model with some kind of sticky glue-ish stuff on it so you don't need to worry about mounting it.

then buy a noisless one from zallman you winey little bitch.

A. buy a dremel

B. buy a soldering iron (or a wire cutter, or both)

C. sure they do, just get creative with the planement


you guys are ####ing morons.

You know it just hit me what a bunch of ####tard braindead motherfuckers you people are.

just looking at the pictures you can tell tahts a motherfucking vga cooler hold down clamp pattern, of whitch there are PLENTY of silent cooling options. If you ####ers weren't such goddamn idiots you would be able to work out htat to remove 17 pidly goddamn watts of heat the actually cooling neadded is minimal. But you ####ers make it sound as its some sort of infucking passible paramont problem.

I hope you all get ####ing colon cancer and ####ing die.

I think the problem could easily be solved like this:

Market a "quiet" G4 with a low-power 7447 and a big heatsink,
and charge slightly more

Market a "power" version, at 1.3 - 1.5GHz (7447A), with a fan

That way, the people that are going to hack their own cooling
solution and void warranties can do so (and feel good about
it), and others who may not feel comfortable with these things
can just buy the slower (low-power 7447 is currently limited
to 1GHz) fanless version and forget about it.

i think Polyhead woke up on the wrong side of the bed mabey even bumped his head on the way up

Quote:
That can happen very easily. Especially if you have many heads

People that don't feel good about voiding a warranty or too need to just shut the #### up and use what their given. They don't deserve a choice, they won't get a choice. If you want a job done right you have to do it yourself, unless your an idiot, then your just going to #### it up, so give up and shut up.

fact is you could probably cool it without a fan anyway. its only 17watts of disapation people.. thats hardly a difficult thing to acheive. Easy to test too, slap your 15watt soldering iron on it and find a system that keeps that at or below 40C

Poly, give it a rest man.

Quote:

#### you

Genesi markets the Pegasos as 'cool' computing: "real world performance, a small size, low noise and minimal power consumption".

In this thread I'm not trying to answer the question of whether or not the Pegasos II delivers on all of these promises. I'm focusing on that of low noise, since that's one of the reasons I put my trust in bPlan/Genesi and paid a premium for PowerPC hardware. I love the concept. Can it be refined? Hell yes!

Polyhead, I am chocked and offended. Believe me I can relate to loving a platform the train appears to have left. I may not be as handy as you with a soldering iron, but please, don't take out your frustration on me.

I hope the webmaster or some moderator of this site has the good taste to yank your leash, regardless of how many Amiga years you have under your belt. We're all part of the puzzle. You need to accept newcomers and their expectations of commoditised hardware. (Cheap and delivered within 1-3 days.. unlike the Pegasos)

Anyway, I have followed the example of 'takemehomegrandma' as displayed here:
http://www.hig.se/~sbn/cooling.jpg

1. a Zalman Northbridge Cooler
2. Fan and fan holder from Zalman CNPS6500B-AlCu

It's still twice as loud as my P4/Celeron though. This Zalman is said to produce 20dB when turned down by the Fan Mate. I'll replace it with a 12 dB Papst later on. (my economy is already rather strained)

BTW, about the "whining"... My dayjob's in a factory. I have to cope with industrial ventilation all day long. When I get home at night I need some time off from all that noise. I can't simply turn up the volume, or I'll loose my hearing.

[edit: duplicate post]

jonas your a ####ing idiot

how many ####ing times do i have to say this, its 17 ####ing watts, if its not queit its YOUR fualt for not seeing the obvios!

why not just use a totally passive system? One of those heat pipe operated zallman units would work fine. But your all to goddamn stupid to work that out. Some quick adjustments of the heat plate with a dremel tool, a jig saw, a hacksaw, and some emery cloth would have it fitting nice.

I wouldn't make fun of you idiots if it weren't ####ing true. But it is, you (l)users just go buy #### without actually working out if its what you need or not. Your worse than stupid kids at drag strips that think adding a spoiler makes you faster. Its looks like #### bud, and thats why it doesn't work very well. If you had any ####ing brains you would be scavenging the cooler of of a dead Intel 845 based board and using that with no fan, more than enough surface area to passively cool a g4 1ghz. but nope, instead you'll just keep throwing money at the problem rather than fixing the problem.

Polyhead, it may be obvious to you. Make a tutorial for the rest of us, or sell prefab solutions to us for $$$.

Show us you're part of the community and not just some whiner yourself.

I agree with Jonas here. Every time I've seen Poly make comments (on many boards) he is always whining (with a 15 year old's attitude and mouth) about other peoples whining/thoughts.

I know I shouldn't type this but the board was atleast tolarable (with respect to disagreements) before the BS campain by Polyhead. There is such a thing as Adult conversation instead of immature name calling and I would hope that this (poly's posts) can be curbed soon.

This is the kind of thing that will alienate the board and will make people not what to be members of the community, and will make current members not return.

IMO!