Vintage Amiga Hardware Blog

So the OS4 review is going to take a couple of weeks more than I initially thought when I first got it early this month. Imagine Workbench 3.9 converted to run on PPC with everything improved and you have OS4, so far there is little to complain about. I would have liked a higher compatibility with older applications though, something I did not quite notice the first week I played around with OS4.

Anyways I have been finalizing my Amiga 4000 desktop I intend to run as my main Amiga in the future. My objective was to have it finished before the end of 2007.

I have all the hardware I wanted to run in the Amiga 4000 but I pretty much knew some modifications had to be done to the hardware, especially the PPC card and the CyberVisionPPC card that runs very hot.

A small heatsink and fan on the Permedia graphics chip would probably improve cooling a lot, I mean the card was shipped stock from factory without heatsink OR fan, but I though I would attach a larger Northbridge type heatsink made by Zalman on the graphics chip instead. I also attached graphics memory heatsinks on the rest of the card since the whole card gets quite hot under action.

There is actually a kind of airflow inside the Amiga 4000D. By today’s cooling standards you could call it pathetic but if you do not want to cut the case of the A4000D open there is just so much you can do so you have to work with what you have. The PSU draws hot air out of the case while holes around the backplate of the Zorro slots draw cool air into the case.

I thought that air would flow over the heatsinks on the CyberVisionPPC on their way out through the PSU.

I could actually feel that the case was a lot cooler after the mod and together with the rest of my non permanent cooling modifications on the A4000 I would really want to think I have prolonged the lifetime of my Amiga a couple of years more.

(and that paper insulation behind the CVPPC card is only a temporary solution)

Random Posts