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Old 29 July 2015, 15:46   #18
alexh
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Join Date: Jan 2004
Location: Oxford
Posts: 11,880
Quote:
Originally Posted by Kurasiu View Post
I recall reading, that you can convert the slow trapdoor RAM into the Chip RAM, and it's as easy as cutting/soldering several JPs
That is the information for a Rev5.

But all is not lost. If you combine Kipper2k's post (see the high rez photo) with this post below :

http://eab.abime.net/showpost.php?p=919735&postcount=4

You get this :

Code:
Original
JP2: 
O
  <- Open
O
| <- Connected
O
                                               
JP7A: 
  Open Connected
  |    |
  ∨   ∨
O   O---O
                                               
Modified: 

JP2: 
O
| <- Connected
O
  <- Open
O
                                                      
JP7A: 
  Open Open
  |    |
  ∨   ∨
O   O   O
This should make your machine into 1Mbyte ChipRAM.

Last edited by alexh; 29 July 2015 at 15:58.
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