09 April 2015, 16:38 | #21 |
Tassel / LaBaN
Join Date: Feb 2014
Location: Kristiansand / Norway
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Nice
What kind of goodies are inside that beauty? .... HDMI output... What more? |
09 April 2015, 16:39 | #22 |
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Location: Thunder Bay, Canada
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27 July 2015, 08:08 | #23 |
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Location: Italy
Age: 45
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This mod is possible to motherboard REV 5 and 6A?
Last edited by danko; 27 July 2015 at 08:16. |
27 July 2015, 22:10 | #24 |
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Join Date: Jul 2003
Location: Helsinki / Finland
Age: 43
Posts: 9,929
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It is possible, but it's a lot more work. The A500+ Agnus is not pin compatible with the old motherboards.
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27 December 2015, 10:19 | #25 | |
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Quote:
This looks quite interesting! Can you provide more details on the modifications you have done to this Amiga? I am modding my A500 Rev. 8a with additional chipram and HxC Gotek + LCD Screen. The possibility to use HDMI would awesome |
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29 December 2015, 03:00 | #26 | |
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Location: Thunder Bay, Canada
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Quote:
hi, i have done this so it is ready for the HDMI output of the Vampire 500 that will be released soon. more details later Last edited by kipper2k; 29 December 2015 at 03:11. |
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29 December 2015, 07:11 | #27 |
Zone Friend
Join Date: Aug 2002
Location: Belgium
Age: 51
Posts: 1,297
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Vampire 500... so not just a version for A600... now you got my attention!
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08 January 2016, 00:38 | #28 |
Banned
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Location: salisbury
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im waiting for the vampire 1200 umm yummy.
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04 April 2018, 01:37 | #29 |
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Parts Please
Any one know where I can get the parts for this mod? I would prefer components that have been tested if at all possible. I've got an 8a that is screaming at me to upgrade . Having parts that are pretested will save me a lot of pain if I need to troubleshoot!
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17 April 2018, 02:06 | #30 |
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Location: bolton
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case looks ace well done.
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11 July 2018, 22:00 | #31 |
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Location: Gennep/The Netherlands
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I want my Rev.8A board only to add 512 KB from Ram expansion to 1 MB Chip.
Do I need to remove the two blobs from U32? |
29 October 2018, 15:24 | #32 |
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Join Date: Oct 2018
Location: netherlands
Posts: 18
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Anyone who can sell me
The d-rams and u32 and preferably also the circuitry to restore the clock?
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02 April 2019, 22:52 | #33 |
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Join Date: Nov 2009
Location: Livorno, Italy
Posts: 398
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Hi,
I tried this mod with a rev. 8A.1 but I have some issue when installing a trapdoor ram expansion. No problem at all with a same mod to a rev. 8A. Are there some differences between rev. 8A and rev. 8A.1? |
10 April 2019, 17:45 | #34 | |
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Location: Stockholm
Age: 48
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Quote:
I don't think so in terms of doing this mod, but yes there are some small differences between rev 8A and rev 8A.1. Denise (OCS vs ECS) might be different and maybe Fat Agnus 8375 390544-01,02 vs 8375 318069-10,11. Also I've read there were some small changes in the clock charging circuit but I'm not certain of that, others can fill me in... Did you manage to get the mod working with your rev 8A.1 now? What Fat Agnus chip do you have in that board? |
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11 May 2019, 17:30 | #35 |
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Join Date: Nov 2009
Location: Livorno, Italy
Posts: 398
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Yes, it was Gary that was defective and gave the issue: problem solved substituting it
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07 September 2019, 21:13 | #36 |
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Join Date: Jun 2018
Location: Stockholm
Age: 48
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If it helps anyone else...I did this mod using ultra-flat sockets for the RAM chips and they clear the keyboard nicely. This board is a keeper for me Some pictures below:
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18 September 2019, 15:46 | #37 |
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Join Date: Sep 2019
Location: Rijeka, Croatia
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I have tried to do this modification but it does not work.
MB is A500+ rev 8A1, Fat agnus is 390544-01 8375. RAM chips are Siemens HYB514256B-70 installed on motherboard. I bought same chips but no luck, done everything as described on this thread, just flashing screen. What can cause this problem? For now i reverted back to original state and amiga is working. |
20 September 2019, 11:35 | #38 |
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Join Date: Jun 2018
Location: Stockholm
Age: 48
Posts: 276
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What color is the screen? Link below might help you out a bit in troubleshooting. If it's green then probably has something to do with the RAM chips you added. Try install a diagrom and troubleshoot further.
http://wiki.classicamiga.com/Amiga_b...r_code_colours |
20 September 2019, 15:49 | #39 |
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Location: Rijeka, Croatia
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Thanks, will try to done mod again and then use diagrom to check.
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27 December 2019, 19:54 | #40 |
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Join Date: Sep 2019
Location: Rijeka, Croatia
Posts: 11
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Just retried this mod again and i am getting green screen, which is ram fault.
I have ordered these chips from Aliexpress, so it can be that are chips are bad. But ordered many times ram chips for C64/128 friom Aliexpress and never had issues. Is there anything else that can cause this error? Also tried to replace logic chip with new one but same error. |
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