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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: dougal on December 14, 2011, 03:02:24 PM
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I was playing Doom on my A1200 (68040 16MB WB3.1) when all of a sudden it just froze and the screen went funny. After that the Amiga would not boot up for about 5 minutes. All it would give me is a black screen.
Now it is booting and working fine again.
ANything i could check?
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First, definitely buy a "new" PSU if you are using an ancient A500PSU.
Second check if 040 is cooled sufficiently.
An alcohol bath, is always good for Amiga (I use lemon cologne which is common in Turkey :P )
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LOL! Lemon cologne... I bet that Amiga smells awesome after it's good and warmed up. :lol:
So you literally drench the entire PCB in an alcohol solution FaLLeNOnE? How has that practice been working out for you? Doesn't hasten drying out electrolytics?
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LOL! Lemon cologne... I bet that Amiga smells awesome after it's good and warmed up. :lol:
So you literally drench the entire PCB in an alcohol solution FaLLeNOnE? How has that practice been working out for you? Doesn't hasten drying out electrolytics?
I use soft cotton and wipe the pcb. I don't actually drench it inside a pool of lemon cologne :D
I have seen many Amigas return to life after this. I adviced it to some of my friends and it worked for them too.
I think it's the smell that makes them wake up! :P
PS: Never did it to my A4000T. That's not why it's dead at the moment if you wonder.
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I use soft cotton and wipe the pcb. I don't actually drench it inside a pool of lemon cologne :D
Ahh... a "whores bath" is what you give 'em then. :laughing:
Time to try it on your A4000T next to see if that'll do the trick! :lol:
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Ahh... a "whores bath" is what you give 'em then. :laughing:
Time to try it on your A4000T next!
:laughing:
She's got a melted P9 power connector. It happened as a result of me forgetting to use protection :P (an unreliable PSU on an unreliable electrical cable actually, which I found out about after it happened)
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@Dougal: yeah, those 040's are pretty power hungry and expend lots of heat. More hungry and hotter than an 060 actually. I remember you having probs before when we talked about switching from an A1200 power supply to an A500 (even though it's less heavy, it does output more power) but FaLLeNOnE is right... time to replace or refurbish even the A500 supply if you're going to be using an 040. If you're not into replacing caps and rectifiers, I'd go with a modern PC supply and an adapter for your setup. Ugly as sin, but either mount it underneath your table or find a supply small enough to fit in a nicer case. :)
I assume you've got plenty of heatsink compound between the 040 and a nice heatsink, right? Heatsink compound will dry up and as a result, not provide the best connection to the actual heatsink. Be careful with that stuff though... as tempting as it is to lick your fingers clean after using the white goo, that stuff is cancerous! :lol:
And lastly... since you're using an 040, especially if it's not cooled sufficiently, you could always cut out a hole in your desk where the trapdoor sits and screw a fan up underneath there. 12v power line will already be down there with the new PC power supply you'll have mounted upside down on the underside of the desk. :lol:
Screw setting your A1200 on risers either, hoping for better airflow. How tacky is that? Ahh... the joys of wedge computer ownership. :laughing:
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@Dougal: yeah, those 040's are pretty power hungry and expend lots of heat. More hungry and hotter than an 060 actually. I remember you having probs before when we talked about switching from an A1200 power supply to an A500 (even though it's less heavy, it does output more power) but FaLLeNOnE is right... time to replace or refurbish even the A500 supply if you're going to be using an 040. If you're not into replacing caps and rectifiers, I'd go with a modern PC supply and an adapter for your setup. Ugly as sin, but either mount it underneath your table or find a supply small enough to fit in a nicer case. :)
I assume you've got plenty of heatsink compound between the 040 and a nice heatsink, right? Heatsink compound will dry up and as a result, not provide the best connection to the actual heatsink. Be careful with that stuff though... as tempting as it is to lick your fingers clean after using the white goo, that stuff is cancerous! :lol:
And lastly... since you're using an 040, especially if it's not cooled sufficiently, you could always cut out a hole in your desk where the trapdoor sits and screw a fan up underneath there. 12v power line will already be down there with the new PC power supply you'll have mounted upside down on the underside of the desk. :lol:
Screw setting your A1200 on risers either, hoping for better airflow. How tacky is that? Ahh... the joys of wedge computer ownership. :laughing:
No heat sink. It has a small cooling fan though. The trap door slot is without a cover because i could not get the cover back on and at the moment the Amiga rests on an empty xbox 360 box and so the front part of it overlaps the box hence it should be getting air.
What i did notice is that the whirring sound of the fan is not constantly at the same speed, sort of like an old pc, especially when it is under a lot of cpu load (like Doom set on high quality graphics and full sized screen).
With regards to the power supply, the A500 psu does not seem to get that hot, i dont know if thats a good thing but im sure it is. But if i do happen to decide on using a PC one which i am considering, would any ATX PSU do? and is it easy to wire up? I should have an old A500 PSU that doesn't work anymore somewhere, I can cut off its power lead for use with the PC one.
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Yeah, just be sure to get your wiring all straight by using a DMM and the correct pinouts...
http://old.pinouts.ru/Power/amiga500power_pinout.shtml
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That setup sounds dangerous. An '040 should have a heat sink AND a fan. This is why they are not well suited for A1200 cases.
I use an 040 in my A2000 without any trouble, until the fan went up. It let me know right away there was trouble. As soon as I replaced the fan, it was back to normal operation. think how big that case is in an A2000.
An '060 actually works better in an A1200! More power, and way less heat!