20 January 2014, 20:09 | #1101 |
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I'm having all sorts of trouble with my ACA620, design-related.
The card will snap out of the CPU with the slightest bang or vibration to the computer. I know this changes from A600 to A600 but it is a little bit annoying. I am afraid of screwing it in place, as no instructions for this are provided officially (specially in terms of what we're supposed to buy) and my fear of the card bending if it still snaps out of the CPU while screwed onto the HD enclosure holes. (ideas?) The card is also prone to overheating on really hot conditions (ie: usually not in Europe :P). A room temperature of ~30 degrees will bring problems after a while. Love the unit and the cheap price, but unfortunately it has turned my A600 in an unreliable machine I can't trust when I am on the road playing gigs. |
20 January 2014, 21:33 | #1102 | ||
electricky.
Join Date: Jun 2010
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Quote:
The ACA620 will not hold that strong because it has fewer pins, but it will not jump off like you describe. As mentioned in the manual: You may need your whole body weight to push the card on, then it will not snap off. Quote:
What you may be observing is contact problems (since you're describing "jumping off", which it doesn't do after proper installation), or grounding problems. The latter can be solved with the screw set that I've included with the ACA630. Before I send one of these to you, please try to push the card all the way down on the A600's CPU. Jens |
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21 January 2014, 00:37 | #1103 |
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I had problems with Vampire and ACA630 ( when not fixed with screws and spacers) but ACA620 sits lovely in the socket. Do what Jens said and fit it properly.
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21 January 2014, 00:51 | #1104 | |
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Quote:
Overheating is not an issue I would think. None of the chips get hot enough so that it should cause problems, so I think that is also connection problems. When things heat up, things expand and if you have a few insecure connections, this expansion could be enough to drop that connection. |
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21 January 2014, 01:26 | #1105 | |
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Quote:
Moving the computer in a suitcase (repeated banging) and stage audio vibration has made the accelerator snap off. Granted, these are not common uses for Amigas, so, what can I say... If you tell me what screw set the ACA630 used I can look it up on eBay or something. This has happened already twice, and last weekend when the machine suddenly screwed up (keyboard stopped responding randomly), the only solution was to take the ACA620 out, which was quite hot to touch (a bunch of PAR lights not far from the Amiga were aimed towards the machines. It was really fucking hot). Suffice to say this isn't normal operation conditions and whenever the card is at home, it never snaps off the socket or gives any troubles. Nobody is going to be facing these problems because nobody is using the machine the way I do. If you want to give it a try, throw your A600 with ACA620 in a checked luggage on a plane and see if it comes out of it when you open the bag up on destination, that's the only test I can provide! Or if not flying, just put it in a suitcase with wheels and move it around quite a bit. I'm not even carrying it unpadded, but the repeated rumble from a road or stuff like that is enough to make it snap out of the socket. (I guess another test could be putting the machine on top of a woofer and set the woofer to play a low hertz signal, anything 50hz or the like) |
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21 January 2014, 02:06 | #1106 | |
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Try these, it's what i use for the Vampire, i think its the same height as the ACA 630. When you use them, you do not need to overtighten, just tighten them so that the head of the screw sits flush with the card...
http://www.ebay.ca/itm/2mm-x-13mm-Se...d885a61&_uhb=1 Also, check inside the cpu socket on the card, make sure there is no bumps or plastic risers that haven't been removed completely as the CPU needs to sit right against the bottom of the socket or it will keep popping off Quote:
Last edited by kipper2k; 21 January 2014 at 02:16. |
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21 January 2014, 08:38 | #1107 | |
electricky.
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Quote:
Please open a ticket on icomp.de, I'll mail out the screws and the required plastic part that keeps the card from bending (one required for the far side). Jens Last edited by Schoenfeld; 21 January 2014 at 11:40. Reason: (typo fixed) |
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21 January 2014, 11:35 | #1108 |
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Oh that's great Jens, I really appreciate that.
Hopefully this will get rid of the problem. The socket goes all the way down to 1mm or less distance of the board before pressing it in, so I am supposing it's fine.Sits correctly after pressing it into place. |
07 February 2014, 20:28 | #1109 |
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Hi,
I know it is not the ACA500 support forum but does anyone know how can I access the configuration menu once I have saved config in expert mode? Now every time when I turn on the Amiga it unpacks the kickstart and boots immediately. I cannot go back to the configuration menu anymore. icomp wiki doesn't have documents on ACA500 at all and the quick guide doesn't mention it. I have tried F1 keys when I turn machine on or reset but no help. Thanks |
07 February 2014, 20:52 | #1110 |
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Any thoughts on making a replacement PSU for the C64/1541?
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07 February 2014, 20:56 | #1111 | |
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Quote:
I guess it could be considered an omission, but in my defense the menu is shown every time you boot until you explicitly set it to only show on left mouse button press in the expert menu. |
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07 February 2014, 21:32 | #1112 |
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07 February 2014, 22:43 | #1113 |
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07 February 2014, 23:01 | #1114 | |
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Quote:
I have tried everything but this... |
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08 February 2014, 09:47 | #1115 |
electricky.
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08 February 2014, 12:01 | #1116 |
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Actually I can use my CD32 PSU for the 1541-II I have but would be interested in a PSU for the C64 and whatever surprises you're going to reveal
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08 February 2014, 12:06 | #1117 |
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hi would a c128 psu be in the works
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08 February 2014, 12:12 | #1118 |
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08 February 2014, 12:40 | #1119 |
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A quality PSU for wedge Amigas is long overdue.
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08 February 2014, 12:48 | #1120 |
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