Showing posts with label psu. Show all posts
Showing posts with label psu. Show all posts

Wednesday, August 3, 2011

A4000: PSU mod

A4000's PSUs have some times some issues with the fan being incorrectly installed (opposite direction blowing hot air from PSU inside the Amiga instead of Outside!).
The exterior holes for the air flow to come out aren't good enough so I'd thought of making something about it :)

For this task I trusted my good old friend Leo (Keropi) to cut the PSU case and mount an inox backplate, since he has done that on his previous A4000 as well.
Having the right tools is always awesome :)

Marking where to cut is essential... Yep the passthrough female power connector (for Monitors) isn't needed. I only need the normal power connector which will be re-aligned on the top where the female power connector was instead!







Inspecting it by hand to check if everything is as it should. Yep it's just fine :)



...and now it's the time to attach it permanently!


It's ready now. Kinda ugly after all the surgery but still cool to see.



Looks pretty cool doesn't it? Ok time to cover the Inox surface before the painting...



It looks rather well I think :) Can't wait for it to dry in order to peel off the tape and see it complete!



After leaving it for 12+ hours to dry... stickers were peeled off. Awesome lookz!!!



On the meanwhile... as I said we bypassed the passthrough (female power connector) since I'm never gonna use a cable to connect a monitor to the Amiga. This is too oldskool and better keep every device with it's own cable instead!
Alas, this is what the internal power cable looks like



Also removing the old noisy fan was essential (for putting a new better and more silent one) so off he went...





After putting the modified backplate and mounting the power connector... One final look...



...and we're set! PSU ready for putting inside the Amiga :)




And finally... 2 last photos of the PSU before and after the mod. I hope you like it :)




Thanks a lot to Leo (Keropi) for his awesome work!!! /respect bro.

Tuesday, July 12, 2011

A600: A604 received! Case change and more

Yesterday I received the wonderful A604 Chip RAM Expansion from AmigaKit.
What an awesome designed product! It's so small comparing it with the A603 and offers a lot more things.
  • 2x clockports (instead of 1)
  • Custom clockport extender 2nd clockport for mounting Subway (special driver required)
  • The second clockport reaches a 60% higher transfer speed than the first, which makes Subway a lot faster!
  • Angled Indivision ECS socket that makes Indivision ECS co-exist along with the floppy!
  • All the usual stuff like 1MB Chip RAM to max out A600's Chip RAM to 2MB total, and RTC.



Getting a new A604 also gave me appetite to re-case my A600 into a spare that I had which was more white (near mint) and didn't have any cut on the case. Keeping the floppy on the case was a nice thing to have.




My spare A600 is really awesome but required removing of the TV Modulator and a good mobo bath!!!
Modulator was an easy task to remove (done it 4-5 times in the past) and a good bath is always nice for my Amiga mobos :)

This time I decided NOT to remove the stock power connector since I got some time ago a nice PSU from MechWare.



Since I wanted to minize the cutting on the new case I decided that except from the replacement of the TV Modulator with the VGA connector for the Indivision ECS, I'd also make a small hole for the Kickstart switch (that simultaneously disables ACA on Kickstart 1.3).





You can check the internal mod of both the VGA connector and Kickstart switch that gets it's +5V from a nearby resistor and Ground from the nearby RGB's connector ground :)



As you may have seen I'm using Mika's angled CF2IDE adapter since for the time being I didn't want to make a hole above PCMCIA (waiting kipper2k's rev.2 CF2IDE adapter in the following days since I had issues with his rev.1 in my previous setup).

You can check some photos of the so far re-casing. I really loved the way that Indivision ECS's cable can go under Indivision and Subway making it look really clean:





Looking good doesn't it? The mods are looking a lot cleaner without the extra cabling that existed in my previous mod. Only need to see now where am I gonna put the USB headers, although I will use for sure the headers I used on my A1200 as well.

Just before I close this post, I thought it'd be nice to include 2 more photos of the A600 in use... Enjoy :)