TT030 replacement case fan and where to connect

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zack4mac
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TT030 replacement case fan and where to connect

Post by zack4mac » Sat Apr 06, 2019 9:56 am

Hello I'm hoping someone can guide me, I have just opened the Atari TT and noticed the rear fan behind the hard drive is not connected, this is probably best its wiring looks a bit dodgy and there are no markings to indicate voltage. I would like to replace this fan, the nearest connection is a 3 pin J102, but without knowing I don't want to risk it.

Thanks
Atari 2600, XEGS, STF/FM/E MSTE/TT CBM 16/64 VC20 PET A500, 600, 1200, BBC B, ZX81, ZX +3 Harlequin ZXuno plus too much junk to fit in one skip! :roll: my username should be Mr Hoarder.

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Icky
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Re: TT030 replacement case fan and where to connect

Post by Icky » Sat Apr 06, 2019 10:23 am

zack4mac wrote:
Sat Apr 06, 2019 9:56 am
Hello I'm hoping someone can guide me, I have just opened the Atari TT and noticed the rear fan behind the hard drive is not connected, this is probably best its wiring looks a bit dodgy and there are no markings to indicate voltage. I would like to replace this fan, the nearest connection is a 3 pin J102, but without knowing I don't want to risk it.

Thanks
Hi zack4mac - I have replaced my fans in TT with these https://noctua.at/en/nf-a6x25-flx

They are very quiet. Also you could use a fan break out board like this to power the fans

viewtopic.php?f=18&t=796&p=5649#p5649

DoG
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Re: TT030 replacement case fan and where to connect

Post by DoG » Sat Apr 06, 2019 10:44 am

Later revisions of TT didn't even have that fan installed. For reference:

J102 as you said. Pin 1 is +12V. Pin 2 & 3 are ground.
Atari_TT_auxfan_J102_1.gif
Atari_TT_auxfan_J102_1.gif (4.24 KiB) Viewed 706 times
Atari_TT_auxfan_J102_2.gif
Atari_TT_auxfan_J102_2.gif (82.92 KiB) Viewed 706 times

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Icky
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Re: TT030 replacement case fan and where to connect

Post by Icky » Sat Apr 06, 2019 11:01 pm

As DoG mentions pin 2 & 3 are ground so if you get the Noctua its a 3 pin connector.

DONT just plug it straight in. You will be able to plug just the (EDIT: +12V) and GND pins of the socket into the connector to power the fan.

Here is a picture of the pinout of the Noctua 3 pin so you only plug the red and black part of the socket in and not the yellow.

https://noctua.at/media/wysiwyg/faqs/no ... v_fans.png

mikro
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Re: TT030 replacement case fan and where to connect

Post by mikro » Sun Apr 07, 2019 10:42 am

Icky wrote:
Sat Apr 06, 2019 11:01 pm
DONT just plug it straight in. You will be able to plug just the +5V and GND pins of the socket into the connector to power the fan.

Here is a picture of the pinout of the Noctua 3 pin so you only plug the red and black part of the socket in and not the yellow.
Why 5V? Isn't the fan linked in the previous post a 12V one?

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Icky
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Re: TT030 replacement case fan and where to connect

Post by Icky » Sun Apr 07, 2019 11:27 am

mikro wrote:
Sun Apr 07, 2019 10:42 am
Icky wrote:
Sat Apr 06, 2019 11:01 pm
DONT just plug it straight in. You will be able to plug just the +5V and GND pins of the socket into the connector to power the fan.

Here is a picture of the pinout of the Noctua 3 pin so you only plug the red and black part of the socket in and not the yellow.
Why 5V? Isn't the fan linked in the previous post a 12V one?
Good spot mikro - was on auto pilot typing in the answer. Will correct.

EDIT: Corrected. Thanks.

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zack4mac
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Re: TT030 replacement case fan and where to connect

Post by zack4mac » Sun Apr 07, 2019 4:13 pm

I took the advice of Icky and ordered two nf-a6x25-flx from Amazon at £25.60 arrived a few minutes ago and will be connected without the speed control.

Quite excited, cant wait to start using it!
Cheers everyone
Atari 2600, XEGS, STF/FM/E MSTE/TT CBM 16/64 VC20 PET A500, 600, 1200, BBC B, ZX81, ZX +3 Harlequin ZXuno plus too much junk to fit in one skip! :roll: my username should be Mr Hoarder.

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