Adding Memory Modules

The standard Equity 386SX system comes with 1MB of onboard memory. You can add SIMMs (single inline memory modules) to increase the amount of memory in the computer. With added SIMMs, the total amount of memory in your computer must be one of the following: 2MB, 4MB, 6MB, 8MB, 10MB, 12MB, or 14MB.

You install SIMMs on the SIMM card that comes with your computer. Any SIMMs you install must have 70ns (nanosecond) access speed or faster to operate in the Equity 386SX. Check with your dealer to ensure that the correct type of SIMMs are used.

There are 16 SIMM sockets on the SIMM card organized in two banks containing eight sockets each. Each socket can contain either one 256KB or one 1MB SIMM. The following table shows the possible configurations for the Equity 386SX:

Possible Equity 386SX SIMM configurations

 

 

Left bank

 

 

 

 

 

Right bank

 

 

 

Total

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1A

2A

3A

4A

5A

6A

7A

8A

 

12A

13A

14A

15A

16A

17A

18A

19A

MB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 M B

 

 

 

 

 

 

*

 

*

*

*

 

 

 

 

 

 

2 M B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 * *

* •

1

 

 

 

 

 

4 M B

 

 

 

 

11"

 

*

•

•

1

1

 

 

 

 

6 M B

 

 

 

111*

 

•

•

*

1

1

1

 

 

 

8 M B

 

 

1111 * • *

* 1

 

1

1

1

 

 

1 O M B

 

11111***

'

1

1

1

1

1

 

1 2 M B

1

11111*

 

*

•

*

1

1

1

1

1

1

14MB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*= 256KB SlMMs

1 = 1MB SlMMs

5-2 Installing Options