Epson ActionTower 3000 Computer - Manuel (Page 50)

Miscellaneous Jumper settings (Continued)
Jumper Jumper
number Setting Function
J 3 0 1 - 4 Selects external battery
2-3* Selects the system board battery
3 - 4 Discharges CMOS memory (this resets the SETUP values to
their factory defaults)
* Factory setting
** Jumpers JB and JE must be set to the same position to enable or disable
the hard disk drive controller
*** Default setting depends on the type of factory-installed microprocessor
Microprocessor type jumper settings
Microprocessor type Installed J11* J13*
486DX. 484DX2. or DX4 1-2 1-2,3-4
486SX Off 2-3
487SX or Pentium OverDrive 2-3 1-2.3-4
SX2/50 1-2 or Off 2-3
Default setting depends on the type of factory-installed microprocessor
Microprocessor voltage jumper settings (I)
Microprocessor Voltage J31 J33 (3)
5 volt 1-2 and 3-4 (2)
-
3.3 or 3.45 volt 5-6 and 7-8 1-2
3.6 Volt 5-6and7-8 2-3
(1) To determine the voltage of your microprocessor, see page 3-24.
(2) Default setting
(3) The setting of J33 does not matter if you are using a 5 Volt microprocessor.
Built-in VGA controller jumper settings
Function
Enable built-h VGA control&r
Disable built-in VGA controller
* Default setting
J14 J15
On* On*
Off Off
Installing and Removing Options 3-7