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Thema: Re: N51SX(8551) SIMM?? Datum: 18.09.97 03:45:23 From: bwigg@worldnet.att.net (Billy Wiggins) To: Peterwendt@aol.com Peter, I would be happy for you to add it to your site. All I did was use a standard 72 pin 2MB 512K x 36 PNY SIMM and add the jumpers to it and wound up with the gnd on 68 and 70. I also clipped the plastic tab on SIMM socket. (Like that was gonna stop a true hacker) I don't think I could make up a schematic with my mailer. What's your pages address I would like to see it.
Billy
So - while just being busy on reworking my pages, I tried to picture Billys modification on the 2MB-module. It will probably be not exactly how his module looks like - but show the principle. A diagram of the module:
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Before conversion:
+------------------------------------------------------------------------+
| ################ ################ ################ ################ |
| ##### Bank ##### ##### Bank ##### ##### Bank ##### ##### Bank ##### |
| ####### 1 ###### ####### 2 ###### ####### 3 ###### ####### 4 ###### |
| ################ ################ ################ ################ |
+-+ xxoo |
|1 ||||||||||||||||||||||||||||| __ |||||||||||||||||||||||||||| 72 |
+--------------------------------+ +----------------------------------+
^--Round notch about 2mm deep
||||
o= open connection 67-++++-70
x= zero ohm resistor ||
68--++--69
After conversion:
+------------------------------------------------------------------------+
| ################ ################ ################ ################ |
| ##### Bank ##### ##### Bank ##### ##### Bank ##### ##### Bank ##### |
| ####### 1 ###### ####### 2 ###### ####### 3 ###### ####### 4 ###### |
| ################ ################ ################ ################ |
+-+ oxox |
|1 ||||||||||||||||||||||||||||| __ |||||||||||||||||||||||||||| 72 |
+--------------------------------+ +----------------------------------+
^--Round notch about 2mm deep
o= open connection
x= zero ohm resistor
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| In case Billy manages to rework a 4MB- or 8MB-module, the results will be published here as well. |
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© 1997 by Peter H. Wendt / pw-software production