8 or 9 bits per byte?
Normally you figure 8 bits to one byte. For many years, a ninth bit has been added as parity bit
in the RAM blocks to verify correct transmission. That way you have to transmit 9 bits, to store
8 bits in the old 30 pin RAM chips. And it takes 36 bits to store 32 bits in the larger 72 pin chips.which increases the cost of the RAM chip by about 12%.
If your system board requires 36 bit modules, you must respect that. Fortunately, most system
boards accepts 32 bit modules, so this creates no problems.
Normally you figure 8 bits to one byte. For many years, a ninth bit has been added as parity bit
in the RAM blocks to verify correct transmission. That way you have to transmit 9 bits, to store
8 bits in the old 30 pin RAM chips. And it takes 36 bits to store 32 bits in the larger 72 pin chips.which increases the cost of the RAM chip by about 12%.
If your system board requires 36 bit modules, you must respect that. Fortunately, most system
boards accepts 32 bit modules, so this creates no problems.
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