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22 July 2010, 23:49
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#1 |
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Registered User
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Location: Norway
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A1200 rev 2B timing fixes
I have an Escom 2B Amiga (new old stock from Amigakit.com), and I haven't done the timing fix on it, yet my Apollo 040 seems to work just fine.
Should I still do the timing fix? I know the saying "Don't fix what's not broken", but the problem is that I don't know if I am seeing a timing error or not  How can I notice it? Well actually, my 040 keep resetting itself but I guess that's because of it overheating, not sure.Any information on this subject is greatly appreciated, I want to "know it all" about the 2B (and 1D.4) timing fixes, and why they are needed. Maybe I'm getting a 060 in the future as well, so I might do the mod... 
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22 July 2010, 23:53
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#2 |
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Global Moderator
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23 July 2010, 00:56
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#3 |
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Should I do the other fixes on the page too? The 2B jump wires and stuff.. Mine doesn't have 'em.
Last edited by 8bitbubsy; 23 July 2010 at 01:02. |
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23 July 2010, 01:08
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#4 |
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Only if your board is giving problems.
Stedy's Rev 2B board does not have the first three modifications mentioned, and it works OK. |
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23 July 2010, 01:09
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#5 |
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Okie
 Guess I'll stick to not touching the motherboard then, as it's in pristine condition... My 040 works with it anyways, although it does reset itself sometimes. |
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24 July 2010, 05:43
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#6 |
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I hate potatos and shirts
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The machine can reset by itself when the 040 gets too hot: replace or enhance the heat dissipation on the 040 CPU and all will be fine.
BTW: as far as I know, Amigakit normally do the timing fixes on their NOS Amigas before selling. |
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24 July 2010, 19:52
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#7 | |
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Quote:
Before Amigakit got their hands on the NOS A1200 stock, it was owned by Eyetech. I bought an AT/Escom A1200 fitted with a Rev 2B motherboard in 2000, but it didn't have the timing fixes done.  Some time later, I bought a set of Workbench 2.1 floppies from them. Enclosed were details of their A1200 revision 1-D-4 and 2B modification service, designed to bring these motherboards up to revision 1-D-1 (the most stable) specification.  The same machine demonstrated another example of Eyetech's "marketing strategy". It came fitted with a 4-way buffered IDE interface, the usual 2½-inch internal IDE hard drive and an external IDE CD-ROM port mounted behind the PCMCIA slot. To make use of this feature, however, required the IDEFix'97 software - which, intentionally, was not included. I was not surprised when I heard that Eyetech had gone into liquidation. 
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24 July 2010, 21:24
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#8 | ||
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Quote:
  Quote:
  
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