HIGHLY recommended PSU mod for A4000D users

keropi · 27 March 2007, 13:09

...if you have crammed your A4000D with various hot, sexy and expensive expansions, chances are it gets very hot inside! After seeing some pics on amiga.org I decided to make the same psu-mod, cut the "ventilation" backplate of the psu and mod it a little... after doing this, the inside of the 4000 is cooler, and you can really feel the heat escaping! the voodoo3 alone produces too much heat, not to mention the csppc and the g-rex inside...

I did not invest much time to make the hole pretty, because I never see the back lol , but it does it's job!

alexh · 27 March 2007, 14:01

My A4000 always draws blood whenever I open the case to add cards etc. By the looks of your hole your A4000 is positively a vampire even with the case closed!

Using two composite video cables for Audio, you philistine you!

keropi · 27 March 2007, 14:08

LOL Alexh !!! Yeah I use them because they are unusually lenghty, I do have a small adaptor to plug paula on the 512i input...!

as for the "blood" no the hole is safe to touch, it has been grindenned with pro tools... but it looks bad because it is not a straight cut

Jope · 28 March 2007, 08:43

I just took a flat blade screwdriver and bent the ridges open a bit wider when I still had my A4000 in a desktop case. That also helped the airflow quite a bit.

Unplug the computer first before inserting the screwdriver into the vent holes. :-D

keropi · 28 March 2007, 09:04

I did open the vents too , (before the mod) but after the mod I see a huge improvement in heat!

musashi5150 · 28 March 2007, 09:07

That looks very nice keropi... if I had the tools I'd do something like that too. But for now I think I will just prise the vents a little wider.

keropi · 28 March 2007, 09:30

I just used a hand grinder, that's why it also looks so lame... u can get a cheap "home-use" one for 10-15eur here.... and get a 1eur slim metal cutting disk... I used one for INOX ... and then I just hot-glued to the back ...

keropi · 28 March 2007, 16:22

I know that Amigaz was thinking: "Damn, THAT'S an ugly PSU mod...!" and I could not rest with this in my mind... so after some rest, I made v2.0 of the mod :

looks better eh?

musashi5150 · 28 March 2007, 20:02

Looks better, yes - but I'd have been happy with the first one

Paul_s · 28 March 2007, 21:34

Nice work dude, when are you going to water cool the PSU? Now that is too cool and dangerous at the same time

Jope · 29 March 2007, 07:44

Quote:

Originally Posted by keropi

looks better eh?

Looks noisier and airflow resisting compared to your first version..

keropi · 29 March 2007, 08:02

@jope:

nope, it is actually better....

Jope · 30 March 2007, 08:24

Ok, you measured the temperature inside the case, and it's lower when you're using the sheet with smaller holes?

keropi · 30 March 2007, 10:51

yes, _but_ I totally forgot that the psu's are from different makers... the one is Lite-On and the other the standar yellow-label one... so maybe except internal design they also have different fans? dunno... the backplates are different though...

Jope · 30 March 2007, 13:47

That might be the clue..

I still think that your original mesh version is probably better in terms of airflow. :-)

lopos2000 · 30 March 2007, 14:09

I have a LiteOn one (151.6W). But mine has a pass through power connector.

Jope · 30 March 2007, 14:23

Those also used to have one.

keropi · 30 March 2007, 15:17

yes, "used to have" is the right expression

cv643d · 31 March 2007, 15:35

I think the fist version is better. The one with the holes is not as effective.

I have those holes on the back of my Shuttle, I cut them away and temps dropped by 5 degrees!

Jope · 31 March 2007, 15:54

Quote:

Originally Posted by cv643d

I have those holes on the back of my Shuttle, I cut them away and temps dropped by 5 degrees!

Also it reduces the wind noise.

27 March 2007, 13:09	#1
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	HIGHLY recommended PSU mod for A4000D users ...if you have crammed your A4000D with various hot, sexy and expensive expansions, chances are it gets very hot inside! After seeing some pics on amiga.org I decided to make the same psu-mod, cut the "ventilation" backplate of the psu and mod it a little... after doing this, the inside of the 4000 is cooler, and you can really feel the heat escaping! the voodoo3 alone produces too much heat, not to mention the csppc and the g-rex inside... I did not invest much time to make the hole pretty, because I never see the back lol , but it does it's job!

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27 March 2007, 14:01	#2
alexh Thalion Webshrine Join Date: Jan 2004 Location: Oxford Posts: 14,337	My A4000 always draws blood whenever I open the case to add cards etc. By the looks of your hole your A4000 is positively a vampire even with the case closed! Using two composite video cables for Audio, you philistine you!

27 March 2007, 14:08	#3
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	LOL Alexh !!! Yeah I use them because they are unusually lenghty, I do have a small adaptor to plug paula on the 512i input...! as for the "blood" no the hole is safe to touch, it has been grindenned with pro tools... but it looks bad because it is not a straight cut

28 March 2007, 08:43	#4
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	I just took a flat blade screwdriver and bent the ridges open a bit wider when I still had my A4000 in a desktop case. That also helped the airflow quite a bit. Unplug the computer first before inserting the screwdriver into the vent holes. :-D

28 March 2007, 09:04	#5
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I did open the vents too , (before the mod) but after the mod I see a huge improvement in heat!

28 March 2007, 09:07	#6
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	That looks very nice keropi... if I had the tools I'd do something like that too. But for now I think I will just prise the vents a little wider.

28 March 2007, 09:30	#7
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I just used a hand grinder, that's why it also looks so lame... u can get a cheap "home-use" one for 10-15eur here.... and get a 1eur slim metal cutting disk... I used one for INOX ... and then I just hot-glued to the back ...

28 March 2007, 16:22	#8
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	I know that Amigaz was thinking: "Damn, THAT'S an ugly PSU mod...!" and I could not rest with this in my mind... so after some rest, I made v2.0 of the mod : looks better eh?

28 March 2007, 20:02	#9
musashi5150 move.w #$4489,$dff07e Join Date: Sep 2005 Location: Norfolk, UK Age: 42 Posts: 2,351	Looks better, yes - but I'd have been happy with the first one

28 March 2007, 21:34	#10
Paul_s Registered User Join Date: Nov 2006 Location: Amigaville Age: 46 Posts: 3,334	Nice work dude, when are you going to water cool the PSU? Now that is too cool and dangerous at the same time

29 March 2007, 08:02	#12
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	@jope: nope, it is actually better....

30 March 2007, 08:24	#13
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Ok, you measured the temperature inside the case, and it's lower when you're using the sheet with smaller holes?

30 March 2007, 10:51	#14
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	yes, _but_ I totally forgot that the psu's are from different makers... the one is Lite-On and the other the standar yellow-label one... so maybe except internal design they also have different fans? dunno... the backplates are different though...

30 March 2007, 13:47	#15
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	That might be the clue.. I still think that your original mesh version is probably better in terms of airflow. :-)

30 March 2007, 14:09	#16
lopos2000 Zone Friend Join Date: Apr 2005 Location: Cider is best In The West Posts: 1,238	I have a LiteOn one (151.6W). But mine has a pass through power connector.

30 March 2007, 14:23	#17
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,861	Those also used to have one.

30 March 2007, 15:17	#18
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	yes, "used to have" is the right expression

31 March 2007, 15:35	#19
cv643d Registered User Join Date: Jul 2002 Location: Sweden Posts: 762	I think the fist version is better. The one with the holes is not as effective. I have those holes on the back of my Shuttle, I cut them away and temps dropped by 5 degrees!

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