CD32 internal fan?

[StevenJGore]

Hi,

I was wondering if anyone has successfully installed a fan inside a CD32, or knows of a way do do it. My SX32-Pro and hard disk generate a huge amount of heat, and I occasionally get crashes when both the hard disk and the CD-ROM are accessed for long periods (whilst copying stuff over from CD, or CPU-intensive games, for example). Modding the CD32's case isn't a problem, since I have a spare CD32 casing, but how do I tap into the CD32's power? I was thinking of using a red LED Coolermaster fan, either 60mm or 80mm in size.

Any comments/suggestions/ideas would be welcome!

Steve.

[lempkee]

just a small note, my 20gb hdd on my sx1 is mounted on the outside of the box (on the top hatch..)

no need for a noisy fan

cheers

[StevenJGore]

my 20gb hdd on my sx1 is mounted on the outside of the box

I would like to keep everything neat and internal, if possible. I've got a black mouse, black CDTV keyboard, and black CDTV floppy drive, which all looks quite impressive, even by today's standards! If I could use a red LED fan (to match the colour of the CD32's logo) I thought that in addition to solving my heat problems, it would also be the finishing touches to the appearance of my system!

Steve.

[stuart]

Here's some info on power connector, you could connect you're fan to that and it would operate all the time the power is on, not very elegant, but it would do the trick.

http://amiga.emugaming.com/cd32faq2000.html#pinouts

BTW the red LED fan to match the red CD32 logo sounds as if it would look really good.  :-)

[StevenJGore]

Cheers for the suggestion, but it's going to need a 12V connection, rather than the 5V which the keyboard/aux port provides.

This is the fan I had in mind:
http://www.coolermaster.com/index.php?LT=english&Language_s=2&url_place=product&p_serial=TLF-R82-ER&other_title=+TLF-R82-ER+Neon%20LED

Further down the CD32 FAQ link, there is a pinout diagram for the CD32's power port. Perhaps I could tap into this inside the casing, using the "+12V" and "Ground" pins? (Obviously the third fan cable for monitoring RPM won't be needed!)

Steve.

[Stedy]

Here's an idea, why not use the +12V from the Floppy drive?

Pin 23 is +12V and pins 3-7 are ground.

You could probably extract enough heat by putting the fan on top of the CD32s grille and make the fan blow up/out of the CD32/SX32.

[BozzerBigD]

I know this is an old thread but I wanted to be on record as saying it is possible to mount a 40x40x10mm fan inside the CD32/SX32. It was positioned between the hard drive (spinning) and memory simm. It is very tight so is held in place by friction and sits on top of an FPGA of some sort so it's in line with the grill! A fan guard with sections of the sides cut out was glued to the bottom of the fan to promote air flow sideways from the CPU/FPU and then blown out of the top grill!  Power came from a molex adapter from a spare CD32 psu I had. It keeps it stable unless it is throttled for an extended period of time playing something like Reshoot Proxima III!

I would recommend a IDE2CF card solution to reduce the heat further.

The fan was this model: Noctua NF-A4x10 FLX

[F0LLETT]

I have to ask why?

Seems pointless to me. There is no way it would generate enough heat to cause any issues.
I ran my ACA1220 clocked at 50MHz for 8 years, 8 hours a day. I also had stock trapdoor cover.
It was never unstable or crashed once. Unless its running at 60 -70 degs, I don't see point.

SX32, would also not throttle CPU. Its set to one speed and runs at that speed all the time.
So the heat generated will not change that much. Where as the ACA1220 could throttle cpu using a governor.
I never saw any point and just ran it as full speed all the time.

[kolla]

@FOLLETT

Why what? This isn’t SX32, this is SX32 Pro, 50MHz 68030 (and optionally 68882), I got one too and it does get warm, especially with spinning disk installed.

[BozzerBigD]

@F0LLETT

When I said throttle I meant a system wide throttling that Proxima III puts an Amiga through. It's not really the CPU that gets pushed in that game it's the custom chips.The CD32 grill is tiny compared to an A1200 and with a spinning drive an 030 sysyem can get hot enough to cause the HD to shutdown!

[F0LLETT]

@FOLLETT

Why what? This isn’t SX32, this is SX32 Pro, 50MHz 68030 (and optionally 68882), I got one too and it does get warm, especially with spinning disk installed.

Not really an answer, as 50 Deg to the human hand can feel warm / hot. Still doesn't mean it needs a fan.
My CD32 gets warm as you put it, but its stable and runs fine.

@F0LLETT

When I said throttle I meant a system wide throttling that Proxima III puts an Amiga through. It's not really the CPU that gets pushed in that game it's the custom chips.The CD32 grill is tiny compared to an A1200 and with a spinning drive an 030 sysyem can get hot enough to cause the HD to shutdown!

Think its time for a new HDD, maybe switch to CF.
Have to say, never heard of, or seen a case where a HDD just shuts down due to heat.

[BozzerBigD]

Well it hangs on using Workbench anyway! Works again once cooled down. Works all day with less strenuous apps now with a fan. Guessing the heat has nowhere to go!

[BozzerBigD]

@F0LLETT

It used to hang Workbench after 30 minutes of playing an audio CD previously when hot weather! The fan has helped.