Setting Chip Speed And Enabling Parity Checking - Everex EV-159 Owner's Manual And Reference Manual

3.3.3 Setting Chip Speed And Enabling Parity Checking
The RAM 3000 Deluxe is factory-configured for the board
to use 256K-bit DRAM chips with a speed of 120 nano-
seconds or faster. If you want to install 150 nanosecond
256K-bit DRAM chips, install a jumper on jumper block W1
TABLE 7A
Selecting DRAM Chip Speed
(WI Jumper)
DRAM Chip Speed WI Setting
120 nanoseconds
• •
•
150 nanoseconds
Default Setting
NOTE: Make sure all the DRAM chips installed on the RAM
3000 Deluxe are of the same speed rating. Also, you must in-
stall 120 nanosecond or faster DRAM chips if your machine
has a 10 MHz or faster clock speed.
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