Rybags Posted March 21, 2006 Share Posted March 21, 2006 Does anyone here use a PC power supply for their Atari? I'm thinking of doing so (just for the computer). Either an old AT style (have a few spares, and might put it inside some type of enclosure. Or, a nice little slimline ATX one (although it's only a 100 Watter, but should be heaps for a 130XE). Also, can the 1050 be modded to run on one too, or does the drive mech use some non-standard setup? Quote Link to comment Share on other sites More sharing options...
MEtalGuy66 Posted March 21, 2006 Share Posted March 21, 2006 Does anyone here use a PC power supply for their Atari? I'm thinking of doing so (just for the computer). Either an old AT style (have a few spares, and might put it inside some type of enclosure. Or, a nice little slimline ATX one (although it's only a 100 Watter, but should be heaps for a 130XE). Also, can the 1050 be modded to run on one too, or does the drive mech use some non-standard setup? Yeah you can use the 5v side of a PC psu to run an 800XL no prob. It is also technically feasible to run a 1050 off of the 5v and 12v signals on a PC PSU, but the problem your gonna have is that the 1050 controller board has its own internal voltage regulators and rectification circuits. Youd have to remove/disable all that stuff on the board, and then you could wire in the 5v and 12v supply wires to run it. Basically, it could be done, but its a big hassle, and its not gonna look pretty. What would be alot easier is to add a second 5v regulator to the 1050 board, and have a wire exiting the back of the drive , over to the 800XL's power connector. This way, you'd be powering the 800XL off of the 1050, and only need a single AC "plug-in" for the whole system. Quote Link to comment Share on other sites More sharing options...
Beetle Posted March 22, 2006 Share Posted March 22, 2006 You can easily use the 1050 on a PC-PSU. You don't even have to remove the PSU-stuff on the 1050. Just put the +5V on TP13 (testpoint, little pins on the 1050-pcb), 0V on TP15 and +12V on TP14. The power does not enter the 1050-psu stuff backwards, the drive stays completely cool. If you wire the 5V from your PC-PSU over the original powerswitch of the 1050 (cut the traces) you can switch your 1050 on/off as before. The 12V is only needed for the motors. You can undo the mod easily. I have put out the big "spoiler" and the big condensators, too. The rest i left in. Runs fine! Regards Beetle PS: Remember that PC-PSU require a minimum load on the 5V line. I put a 12v/25W halogen bulb inside of the PSU for this. Dont use it without load - it may fail or blow out 20V on the 12V line or whatever. Quote Link to comment Share on other sites More sharing options...
MEtalGuy66 Posted March 22, 2006 Share Posted March 22, 2006 You can easily use the 1050 on a PC-PSU. You don't even have to remove the PSU-stuff on the 1050. Just put the +5V on TP13 (testpoint, little pins on the 1050-pcb), 0V on TP15 and +12V on TP14. The power does not enter the 1050-psu stuff backwards, the drive stays completely cool. If you wire the 5V from your PC-PSU over the original powerswitch of the 1050 (cut the traces) you can switch your 1050 on/off as before. The 12V is only needed for the motors. You can undo the mod easily. I have put out the big "spoiler" and the big condensators, too. The rest i left in. Runs fine! Regards Beetle PS: Remember that PC-PSU require a minimum load on the 5V line. I put a 12v/25W halogen bulb inside of the PSU for this. Dont use it without load - it may fail or blow out 20V on the 12V line or whatever. Heh. Well, I wouldnt reccomend that. You can try it at your own risk. I did exactly that with a 1050 one time because it had a bad regulator and I didint have the parts to fix it, and I needed it because I was in the middle of a big coding project. It worked fine for a few hours, and then one of the big caps inside it blew and made a mess all over the board. Possibly my diodes were bad as well, but Im just sayin, all 1050s are approaching 20 years old ore more... Quote Link to comment Share on other sites More sharing options...
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