Epson Equity 4 Бюлетень підтримки продукту - Сторінка 5
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Q9.
What video adapter comes standard built-in) with the Epson Equity
4SX/25, 4DX/33 and 4DX2/50 computers?
A.
The Equity 4 series computers utilize a Cirrus GD5422 VGA graphics
controller as its built-in video adapter. These computers include 512KB of
video memory which may be upgraded to a full 1MB of memory by
installing pluggable memory chips.
The Cirrus VGA graphics controller is 100% hardware and BIOS-
compatible with IBM® VGA display standards.
Q10. What type of RAM chips are used to upgrade the video memory to a full
1MB on the Equity 4SX/25, 4DX/33 and 4DX2/50 computers?
A.
To increase the Epson Equity 4 series computer's video memory requires
four pieces of a 256K x 4 bit, 70ns, 20-pin DRAM (Dual In-line Package)
chip. These chips install on the computer's main logic board in sockets
M5, M6, M7 and M8.
To insure compatibility, we have tested the following DRAM chips and
confirmed that they operate properly when upgrading the video memory:
PSB No: S-0155
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