Epson NX-Epson Bollettino di assistenza prodotti - Pagina 12
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Q13. If an Intel OverDriver processor is installed in place of the 486SX/33,
do both the internal and external processor speeds double?
A.
Only the internal speed doubles. The Intel OverDrive processors capitalize
on the benefits of a well-designed system architecture of a given speed,
while boosting internal CPU speeds to a clock rate that is exactly double
that of the system clock.
Q14. Does the Epson Progression 4 support optional math co-processors?
A.
There is no additional socket for optional Math Co-Processor support.
Math Co-Processor support is embedded in the ODP, 486DX2/50 and
4860X2/66 processors.
Q15. Can the video interface be upgraded?
A.
No. The 1 MB video interface is integrated into the system board.
However, the internal VGA interface can be disabled and a third party
video card may be installed but, would not have access to the Wingine
accelerator support.
Q16. How can the memory in the Epson Progression 4 be expanded?
What are the benefits of adding memory?
A.
The Progression 4 comes standard with 4MB of RAM. It can be expanded
up to 128MB by installing 1MB, 4MB, 16MB, or 64MB SIMMs. The
system board provides two SIMM sockets for additional memory and
SlMMs can be added one at a time or in pairs. Use only 36-bit, fast-page
mode SlMMs that operate at a speed of 70ns (nanoseconds) or faster.
MS-DOS and most applications use the first 640KB of memory. Unused
memory above 640KB is extended memory and is accessed by Windows
and other programs with built-in memory managers. The Progression 4
VirtualCache and Wingine capabilities coupled with an increase in memory
can effectively increase the overall system performance.
PSB No: S-0160
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