So you buy an expensive A1-G4 and it overheats and crashes. Nice!

(Unless this post is flame bait)

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I suppose that you need better fan/cooling system for overclocking.

What about overclocking a G4 933 to 1,2Ghz What cooling system do i need?

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ikir

I guyz.

It's not flame. When I started my Aone for the first time, it crashed in the first 15 minutes... And the second crash came 10 minutes after the first.

First of all I changed the thermal compound and machine was ok!

But I wanted to change the system for noise and perfection ;)


Now system is cold, but overclocking is still impossible, even at 1000. In fact, to overclock, you need a good cooling system (I think this one is a good base) and you also have to change the CPU voltage UP! I don't know how to do :-/

And I'm affraid a 7455/933 can't reach 1200.... maybe 1066 max

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AmigaOne XE --- 7455A@1400 --- Radeon 9000 Pro --- RAM 2GB --- SSD 40GB

@Intuitioned

Quote:

So you buy an expensive A1-G4 and it overheats and crashes. Nice!

Not in all cases, I know for a fact that Vir has got it running perfectly stable without any extra cooling. He has the exact same motherboard, RAM, and desktop case as me, and lives only about 50 metres down the road (so it's not a climate thing). Strangely, I needed extra cooling, but not he. Very odd.

I agree that Eyetech should have delivered a better cooler with the motherboard. Probably an honest mistake on their part, hopefully they'll learn from it.


@Crisot

Great page! Now I have something to link to in the KAQ entry about insufficient cooling.

Kay

Have you been over at my place, it looks exactly as my A1



Generally about A1-cooler:
The G4 is very sensitive for overheating. 50 degrees C is the max. I've measured before it ceases to work. (below 40 is Motorolas recommended temperature).
The ATX-cases are not the best from a cooling point of view, so G4 in an ATX-case needs as much cooling as ever a Pentium 4.

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Site admins are people too..pooff!

With a setup like this you get about 43 degrees C depending on the rpm on the fan, when i run the fan (96) at 1550rpm(top speed is 2600rpm) and two Paps fans at half their speed i get 44-45 degrees C, so then it's not sufficient...this is messured with a "W-Force Super panel"

Regards Muffin

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--Regards Muffin
--Amiga a Brave New World!

Heh,

This is exactly the same setup I used for my machine, except I didn't use Arctic Silver to glue the heatsink on, I used push pins.. but:

Note to anyone that tries this and doesn't want to glue the heatsink on:

The Zalman supplied push pins do not fit in the holes of the XE CPU Module, use the push pins from your old heatsink.

Ross..

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The standard disclaimer applies

@ Muffin

I meant that from my experience the G4 worked quite ok a bit over 40 C, but became really unstable when reaching ~50 C.
Comparing with P4, there is not much, (only ~10 C), to play with, the P4 is built to take at least 30-40C over the recommended temperature, before behaving badly.
The good point is that it doesn't fry, like some AMD cpu:s.

The Sunnon fan that comes as original-fan, does it's job, but with almost no margins.
I discovered a thin layer of dust on it when changing to the Zalman-thingie, and that might have been enough to increase the temperature to a point where the cpu's too hot.
And who has a computer without dust

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Site admins are people too..pooff!

Yes that's true I said it on an image, push pins are to small to fit.

I used Artic Silver AND push pins. Only push pins works, but heat conduction is much better with thermal greas.

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AmigaOne XE --- 7455A@1400 --- Radeon 9000 Pro --- RAM 2GB --- SSD 40GB

what about the G3 ? Mine is having the manufacturer cooler and is running at 800Mhz. Up to where can I push it without the need of a new cooler ?

@ Crisot :
Quote:

Problem, here in France, there is NO MAY to buy this system. We have to buy a total CPU cooler to get the FB123, so here is the less expensive:

I think we should read NO WAY instead of NO MAY.
Lio

1,2 GHz wont work! I tried it out with a Athlon Socket A heatsink and a PAPST cooler.

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A1SE: G3@600MHz, 2GB, 1GBit network card
A1XE: G4@933MHz, 2GB, refitted AC'97 codec
microA1: G3@800MHz, 1GB

- A1 Linux support -

G3 is a different CPU.

Runs MUCH COOLER.

Ross..

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The standard disclaimer applies

Sorry didn't see your note.

Of course I am using thermal grease, but not arctic silver, and not an adhesive grease, just a normal one (so pins are required to hold the heatsink on!)

Ross..

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The standard disclaimer applies

@crisot , nice site! and great information.

cool to see you back!...

hope to see an universe intro/demo/preview soon

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See my blog and collection website! . https://www.blog.amigaguru.com

I like this a lot!

I want my A1 to run as smooth & efficiently as possible & if keeping it cool is a major step, I'll be seriously considering taking steps like this.

Thank you very much.

Quote:

So you buy an expensive A1-G4 and it overheats and crashes. Nice! (Unless this post is flame bait)

FROOOOOOTCH!!!


Reading between the lines, the first thing Crisot did was overclock his board, which worked fine when I sent it out.

I did a few rough tests with a G4 at 800 and 933 MHz, and overclocking by 17% gives a corresponding increase in heat generated of around 20%. So it's not surprising the little fan isn't up to the job without some serious help. Not yet a Peltier job (that's if you're daft enough to want to take it over 1 Gig), but you do need to make sure airflow in the tower is working optimally. Round IDE cables, plugging in the case fan, using a good quality tower... All this is very important!

Dear Rose :D

Sorry, when the machine crashed for the first time, it was not overclocked :-/

If you say my AOne worked when you tested it, I know you are right, but here at home it crashe... Maybe the transport, or maybe the 25°C in my room ;)

That's true :)

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AmigaOne XE --- 7455A@1400 --- Radeon 9000 Pro --- RAM 2GB --- SSD 40GB