Product information guide
EPSON PROGRESSION
OverDrive Modules
Hard Disk Drive Types
If you have the 486SX/25 or 486DX/33 CPU card, you can
The following table lists the types of hard disk drives you can
install an Intel OverDrive module on the card to effectively
use in the computer. Check this table and the documentation
double the internal clock speed of the computer’s
supplied with your hard disk to find the correct number for
microprocessor. Although there is an OverDrive socket on
the type of hard disk drive(s) installed in your computer. You
the 486DX2/66 card, there is no OverDrive module available
need to enter this number when you set the hard disk drive
for it at this time.
configuration in the SETUP program.
Available OverDrive Modules
Hard Disk Drive Types
[Type]
Cylhders
1
Heads
1
Precomp
1
Landing
/Sectors ISIze*
CPU card
OverDrive module
486SX’25
ODP486SXf25
*
486DXl33
ODP486DXI33
If you install this module, you cannot also install a 4875X/25
microprocessor chip because both options require the same socket
SIMM Installation
There are two SIMM sockets on the main system board, next
to the option slots. You can install 36-bit, fast-page mode
SIMMs that operate at an access speed of 70ns or faster, with
a capacity of lMB, 4MB, 16MB, or 64MB.
The following table shows the possible SIMM configurations;
do not install memory in any other configuration. Make sure
that both SIMMs operate at the same speed. There is 4MB of
memory soldered onto the main system board.
SIMM Configurations
Standard soldered memory
Check with your dealer to see if this SIMM is available
With this memory configuration, the 4MB of soldered memory is disabled.
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Actual size when formatted may be slightly different than the size listed
on the drive label.
t
Hard disk drive supported in translate mode
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Epson drives
Epson Progression-6
1O/19/92