AT&T, INC.
==========

   6386, 6386E WORK GROUP SYSTEM MEMORY EXPANSION

   Card Type          Memory card                                 
   Chipset/Controller N/A                                         
   I/O Options        N/A                                         
   Maximum DRAM       16MB                                        

<gopher://bitreich.org/I/th99/i/A-B/50234-1.png>
   

   +------------------------------------------------------------+
   |               BOARD CAPACITY CONFIGURATION                 |
   |------------------------------------------------------------|
   |                      N = # of boards                       |
   |------------------------------------------------------------|
   |                  B1=capacity of board #1                   |
   |------------------------------------------------------------|
   |                  B2=capacity of board #2                   |
   |------------------------------------------------------------|
   |                  B3=capacity of board #3                   |
   |------------------------------------------------------------|
   |                  B4=capacity of board #4                   |
   |------------------------------------------------------------|
   |                  X= (B1 + B2 +B3 + B4) -1                  |
   |------------------------------------------------------------|
   |      Y= (B1 * (N > 1) + B2 * (N > 2) + B3 * (N > 3))       |
   |------------------------------------------------------------|
   |                  Note: True =+1 False =0                   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CAPACITY SWITCH CONFIGURATION                |
   |------------------------------------------------------------|
   | Capacity Range |       LO7LL/7       |       LO7LL/8       |
   |----------------+---------------------+---------------------|
   |    Y=1 - 15    |         On          |         On          |
   |----------------+---------------------+---------------------|
   |   Y=16 - 31    |         On          |         Off         |
   |----------------+---------------------+---------------------|
   |   Y=32 - 47    |         Off         |         On          |
   |----------------+---------------------+---------------------|
   |   Y=48 - 63    |         Off         |         Off         |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CAPACITY RANGE CONFIGURATIONS                |
   |------------------------------------------------------------|
   |   Capacity Range   |      LO7LL/7      |      LO7LL/8      |
   |--------------------+-------------------+-------------------|
   |      Y=1 - 15      |        On         |        On         |
   |--------------------+-------------------+-------------------|
   |     Y=16 - 31      |        On         |        Off        |
   |--------------------+-------------------+-------------------|
   |     Y=32 - 47      |        Off        |        On         |
   |--------------------+-------------------+-------------------|
   |     Y=48 - 63      |        Off        |        Off        |
   +------------------------------------------------------------+

+---------------------------------------------------------------------+
|                   CAPACITY SWITCH CONFIGURATION                     |
|---------------------------------------------------------------------|
|X and|L06LL/1|L06LL/2|L06LL/3|L06LL/4|L06LL/5|L06LL/6|L06LL/7|L06LL/8|
|  Y  |       |       |       |       |       |       |       |       |
|Value|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|0 16 |  On   |  On   |  On   |  On   |  On   |  On   |  On   |  On   |
|32 48|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|1 17 |  On   |  On   |  On   |  Off  |  On   |  On   |  On   |  Off  |
|33 49|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|2 18 |  On   |  On   |  Off  |  On   |  On   |  On   |  Off  |  On   |
|34 50|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|3 19 |  On   |  On   |  Off  |  Off  |  On   |  On   |  Off  |  Off  |
|35 51|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|4 20 |  On   |  Off  |  On   |  On   |  On   |  Off  |  On   |  On   |
|36 52|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|5 21 |  On   |  Off  |  On   |  Off  |  On   |  Off  |  On   |  Off  |
|37 53|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|6 22 |  On   |  Off  |  Off  |  On   |  On   |  Off  |  Off  |  On   |
|38 54|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|7 23 |  On   |  Off  |  Off  |  Off  |  On   |  Off  |  Off  |  Off  |
|39 55|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|8 24 |  Off  |  On   |  On   |  On   |  Off  |  On   |  On   |  On   |
|40 56|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|9 25 |  Off  |  On   |  On   |  Off  |  Off  |  On   |  On   |  Off  |
|41 57|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|10 26|  Off  |  On   |  Off  |  On   |  Off  |  On   |  Off  |  On   |
|42 58|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|11 27|  Off  |  On   |  Off  |  Off  |  Off  |  On   |  Off  |  Off  |
|43 59|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|12 28|  Off  |  Off  |  On   |  On   |  Off  |  Off  |  On   |  On   |
|44 60|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|13 30|  Off  |  Off  |  On   |  Off  |  Off  |  Off  |  On   |  Off  |
|46 62|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|14 30|  Off  |  Off  |  Off  |  On   |  Off  |  Off  |  Off  |  On   |
|46 62|       |       |       |       |       |       |       |       |
|-----+-------+-------+-------+-------+-------+-------+-------+-------|
|15 31|  Off  |  Off  |  Off  |  Off  |  Off  |  Off  |  Off  |  Off  |
|47 63|       |       |       |       |       |       |       |       |
+---------------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    DRAM CONFIGURATION                      |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 1MB  | (4) 256K x  |    None     |    None    |    None    |
   |      |      9      |             |            |            |
   |------+-------------+-------------+------------+------------|
   | 2MB  | (4) 256K x  | (4) 256K x  |    None    |    None    |
   |      |      9      |      9      |            |            |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 256K x  | (4) 256K x  | (4) 256K x | (4) 256K x |
   |      |      9      |      9      |     9      |     9      |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (4) 1M x 9  |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (4) 1M x 9  | (4) 1M x 9  |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 16MB | (4) 1M x 9  | (4) 1M x 9  | (4) 1M x 9 | (4) 1M x 9 |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM SWITCH CONFIGURATION                  |
   |------------------------------------------------------------|
   |Size| SIMMs |L07LL/1|L07LL/2|L07LL/3|L07LL/4|L07LL/5|L07LL/6|
   |----+-------+-------+-------+-------+-------+-------+-------|
   |1MB |256K x |  On   |  Off  |  Off  |  On   |  On   |  On   |
   |    |   9   |       |       |       |       |       |       |
   |----+-------+-------+-------+-------+-------+-------+-------|
   |2MB |256K x |  On   |  Off  |  On   |  On   |  On   |  On   |
   |    |   9   |       |       |       |       |       |       |
   |----+-------+-------+-------+-------+-------+-------+-------|
   |4MB |1M x 9 |  On   |  Off  |  Off  |  On   |  On   |  On   |
   |----+-------+-------+-------+-------+-------+-------+-------|
   |4MB |256K x |  On   |  On   |  On   |  On   |  On   |  On   |
   |    |   9   |       |       |       |       |       |       |
   |----+-------+-------+-------+-------+-------+-------+-------|
   |8MB |1M x 9 |  On   |  Off  |  On   |  On   |  On   |  On   |
   |----+-------+-------+-------+-------+-------+-------+-------|
   |16MB|1M x 9 |  On   |  On   |  On   |  On   |  On   |  On   |
   +------------------------------------------------------------+