Good day,

I have been compiling a list of coolers suitable for the AmigaOneXE CPU modules. What I still need to make the list into a usable source for Amigaworld users is...
1) your CPU version (750FX, G3, G4, 7451, 7455, 7457)
2) the cooler you are using
3) the vcore and speed or your CPU
4) the temperature at which your CPU is running.

The list so far...
COOLING METHODS FOR A1
----------------------
COOLER MASTER BLUE ICE PRO (C283-2027)
        HS dimensions:  43.4 x 43.4 x 30mm
        HS material:    copper
        HS mounting:    Northbridge
        fan dimensions: 40 x 40 x 10mm
        fan speed:      4500RPM
        air flow:       4.5CFM
        bearing:        sleeve
        noise:          22 - 26dBA
        weight:         90g
        price:          $15.00 - $19.00 (US)
        CPU:            ?
        VCORE:          ?
        CPU Temp        ?

VANTEC ICEBERQ 5 PREMIUM (CCB-A5C)
        HS dimensions:  110 x 88 7 x 31.6mm
        HS material:    copper
        HS mounting:    VGA style
        fan dimensions: 110 x 88.7 x 31.6mm (built into HS)
        fan speed:      2500RPM
        air flow:       ?
        bearing:        ball
        noise:          ?
        weight:         320g
        price:          $20.00 - $35.00 (US)
        CPU:            ?
        VCORE:          ?
        CPU Temp        ?

SWIFTECH MCX159-R (possibly the best A1 cooler; recommended by GuruMeditation)
        HS dimensions:  40.4 x 40.4 x 42mm
        HS material:    copper & aluminum (full copper version exists)
        HS mounting:    chipset
        fan dimensions: 40.4 x 40 4 x 20.8mm
        fan speed:      ?
        air flow:       6CFM
        bearing:        ?
        noise:          18dBA
        weight:         238g
        price:          $28.00 - $35.00
        CPU:            7455 @933Mhz
        VCORE:          1.84
        CPU Temp        43.6C

THERMALTAKE CRYSTAL ORB (Warning: known to fry some AmigaOne modules)
        HS dimensions:  50 x 50 x 15mm
        HS material:    nickel & copper
        HS mounting:    Northbridge
        fan dimensions: 50 x 50 x 15mm (built into HS)
        fan speed:      5500RPM
        air flow:       12.4CFM
        bearing:        ball
        noise:          26 4dBA
        weight:         ?
        price:          $8.50 - $12.00
        CPU:            ?
        VCORE:          ?
        CPU Temp        ?

THERMALTAKE EXTREME SPIRIT II (CL-0034)
        HS dimensions:  70 x 48 x 40mm
        HS material:    copper (heatpipe)
        HS mounting:    Northbridge (needs no modification to fit CPU module)
        fan dimensions: 40 x 40 x 10mm (built into HS)
        fan speed:      4500RPM
        air flow:       3.47CFM
        bearing:        ?
        noise:          19dBA
        weight:         169g
        price:          $10.00 - $35.00 (US)
        CPU:            ?
        VCORE:          ?
        CPU Temp        ?

ZALMAN VF700-ALCU
        HS dimensions:  91 x 126.4 x 30mm
        HS material:    aluminum & copper (fins) (full copper version exists)
        HS mounting:    VGA style
        fan dimensions: 91 x 126.4 x 30mm (built into HS)
        fan speed:      1350 - 2650RPM
        air flow:       ?
        bearing:        2 ball
        noise:          18.5 - 28.5dBA
        weight:         180g
        price:          $19.00 - $37.00 (US)
        CPU:            ?
        VCORE:          ?
        CPU Temp        37 degrees

ZALMAN VF900-CU (possibly the best A1 cooler)
        HS dimensions:  96 x 96 x 30mm
        HS material:    copper (fins & heatpipe)
        HS mounting:    VGA style
        fan dimensions: 96 x 96 x 30mm (built into HS)
        fan speed:      1350 - 2400RPM
        air flow:       ?
        bearing:        2 ball
        noise:          18.5 - 25.0dBA
        weight:         185g
        price:          $31.00 - $55.00
        CPU:            7455 @800Mhz
        VCORE:          1 59V
        CPU Temp        37C

COOLERMASTER HEATSINK WITH ZALMAN FAN & FB123 BRACKET (Possibly best price-to-performance ratio)
        HS dimensions:  43.4 x 43.4 x 30mm
        HS material:    copper
        HS mounting:    Northbridge
        fan dimensions: 92mm
        fan speed:      1300 - 4000RPM
        air flow:       24.6 - 78.7CFM
        bearing:        sleeve & ball
        noise:          20dBA
        weight:         ?
        price:          $10.00 - $20.00 (US)
        CPU:            7557 @1Ghz
        VCORE:          ?
        CPU Temp        32 - 37 degrees

GRAPH-O-MATIC Rev 3 WATERCOOL
        dimensions:     50 x 40 x 33mm
        material:       plated copper
        weight:         155g
        price:          $50.00 (US)($60.00 with Northbridge mounting)
        CPU:            7455@1066MHz
        VCORE:          1.84V
        CPU Temp:       38 degrees

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_________________
I sold my SAM460ex lite... waiting for money to buy a Raspberry Pi... or a Classic A1000 with Buffee... or an A1222... and OS4.3 FE update 11

@PhantomInterrogative

G4 7455 , Graph-O-Matic (Watercool ), vcore 1,84 V @ 1066 MHz, max.38°C

_________________
I write with a translator program, if something is not understandable, please ask me

A One XE G4 @ 1066 MHz - Wasserkühlung
SamFlex @ 800 MHz

@PhantomInterrogative

I had the same question a few months ago. Many that replied had the VF900CU on their A1 and is capable of keeping the CPU very cool at a nice quiet low speed.

Chris

@QuikSanz

I do have a dual purpose in this thread. Firstly, I would like to provide a handy reference for others in the OS4 Zone. Secondly, I would like to find out what is the best price-performance cooler for the AmigaOne. I recently found that the Thermaltake store is blowing out their inventory of Extreme Spirit Northbridge coolers (C1-C0034) at around $9.00 (US). If it is comparable to the Zalman in performance, I'll buy one for my 7451.

-the Phantom "?"

_________________
I sold my SAM460ex lite... waiting for money to buy a Raspberry Pi... or a Classic A1000 with Buffee... or an A1222... and OS4.3 FE update 11

@PhantomInterrogative

I use "detached" 90mm fan (on braket) blowing on module with CoolerMaster's heatsink without its fan:

link with some pics

Works fine for >1/2 year. There's also SilenX case fan and fanless PSU.

Jack

Last edited by jack on 25-Mar-2009 at 09:52 PM.

_________________

"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg

@jack

Your results seem comparable to both the Swiftec and VF900 solutions... for less money than the competition.

-The Phantom "?"

_________________
I sold my SAM460ex lite... waiting for money to buy a Raspberry Pi... or a Classic A1000 with Buffee... or an A1222... and OS4.3 FE update 11

@PhantomInterrogative

The combination is pretty quiet.
The fan is 92 mm btw, and with the supplied resitor (silent mode) it is 20dB.
Weight pretty low (only heatsink is attached to the module, bracket is attahce to pci cards' screws).
No vibrations is a plus too.
I use it with 80mm 14dB fan.
Fanless psu.
And the case is padded inside with sheets of foam.
The machine almost is as quiet as my wife's thinkpad with fan on.
BTW: the cpu here is 7557@1Ghz

Jack

Last edited by jack on 26-Mar-2009 at 07:09 PM.
Last edited by jack on 26-Mar-2009 at 07:07 PM.

_________________

"the expression, 'atonal music,' is most unfortunate--it is on a par with calling flying 'the art of not falling,' or swimming 'the art of not drowning.'. A. Schoenberg

@all

The list is shaping up; however, I still need some performance information from users of the Cooler Master Blue Ice Pro, Thermaltake Extreme Spirit II, Vantec Iceberq 5 Premium, and Zalman VF700. If you have another good cooling solution, I'd like to hear from you.

thanks,

the Phantom "?"

_________________
I sold my SAM460ex lite... waiting for money to buy a Raspberry Pi... or a Classic A1000 with Buffee... or an A1222... and OS4.3 FE update 11

@PhantomInterrogative

The list is shaping up; however, I still need some performance information from users of the Cooler Master Blue Ice Pro, Thermaltake Extreme Spirit II, Vantec Iceberq 5 Premium, and Zalman VF700. If you have another good cooling solution, I'd like to hear from you
Seriously too much input$. The ZALMAN FAN & FB123 BRACKET was best cooler upgrade for AmigaONE. The other cooler upgrade is a better ATX case. My Cooler Master C5 case was better design than the cheap case the A1 came in and Kurt Grach warned about this cheap case. See:
http://www.flickr.com/photos/11367727@N07/
This case has a 120MM back fan, hardrive bay fans, and side cover downdraft tube to match the Zalman FB123 fan. The CoolerMaster Musketeer guage set is cool too; how are you going to know how hot or cold your CPU is running?
The Centaurian5 was the coolest running case for 2004 by PC Magazine. So, you are going to add ATX case design to cooler list?

_________________

@Snuffy

You are right about the Zalman fan solution. Not too long after starting this thread, I ordered the NBF47 and FB123 for my AmigaOneXE.

You have a very good point about the case being a cooler. If the case traps hot air, the CPU cooler is just going to recycle that hot air. I will look into ATX case solutions; however, I don't think I'll put together as extensive research as I have in this thread. It is much easier for the average user to find a good ATX case solution, being that the AmigaOne mobo is ATX, than a CPU cooler solution for the AmigaOne CPU modules, being that no heatsinks/fans are sold specifically for PPC or even AmigaOne PPC modules.

-The Phantom "?"

_________________
I sold my SAM460ex lite... waiting for money to buy a Raspberry Pi... or a Classic A1000 with Buffee... or an A1222... and OS4.3 FE update 11

@PhantomInterrogative

I am dubious about your list, especially if you really want to capture the "performance" part. There are many factors not included which will make it impossible to completely predict how well these will work in anyone's specific circumstances. Having a list of the basic available published data may still be of some use though.

The "performance" of a cooler should probably be listed scientifically as a value, e.g. in (degreesC/Watt). The Swiftech (the one I have) is the only one I found at the time which actually listed this spec on the Swiftech product webpage. The current all Cu version of this part lists as 1.25 °C/W, which is pretty weak performance actually.

Some of the additional factors which are important in the cooling are the ambient temperature, the thermal coefficient between the heatsink and the chip/die (flatness/paste/etc), the amount of through-case airflow,and how ideal the airflow is around the heatsink. For example, the MCX159 has good airflow/contact with the dissipating pins in the heatsink, however the driven airflow is top-down, which results in an omnidirectional airflow out of the heatsink. In a more enclosed space without good through-airflow, this can result in trapping some of the heating air as it circulates within the space, instead of cycling all the heated air out as a linear airflow would. In my case (an old Antec Overture), I had to add an additional fan just to blow horizontally across my Swiftech to keep the temp as low as I wanted. So I don't recommend this (expensive) product unless you have a case with very good intrinsic airflow. It's also much smaller (volume) than really needed on the A1 CPU module, so there is additional efficiency you are losing by adopting a small form factor. If you have to add a helper fan to it, you probably get better performance/$ from a simple large radiator like one of the Zalman's or a heatpipe + a fan.

Also, I'm guessing most of these temperature values you will get reported are from the CPU onboard temp measurement, (via CPUTemp docky or some other way of reading the TAU registers), and these temp values are totally NOT to be relied on at all. In my experience they can vary 15° or more even within what should be identical families or masks. CPUTemp even lets you "calibrate" the value with slope/intercept parameters, so you can end up with any value you like :)

Scott Woodall