2134/2176 SL-A-2 System Board


J1 Fan +12 Vdc Connector
J2 USB (Universal Serial Bus)
J3 System Board Voltage Regulator VRM - Connector
J4 Cache Connector

J5 Primary Hard Disk (IDE) Connector
(Hard Disk 1, Hard Disk 2)

J6 Secondary Hard Disk (IDE) Connector
(Hard Disk 3 or CD-ROM, Hard Disk 4)
(for HD Jumper see AT-IDE Hard Disk Drive Jumper Settings)

J7 Mouse Connector
J8 Keyboard Connector

J9 SIMM 72-pin Socket - Bank 1
J10 SIMM 72-pin Socket - Bank 2
J11 DIMM 168-pin Socket - Bank 2
J12 SIMM 72-pin Socket - Bank 3
J13 SIMM 72-pin Socket - Bank 4

J16 Riser Connector - PCI/ISA
J17 VESA Video feature Connector
J19 Serial Port A Connector
J20 Parallel Port Connector
J21 Diskette Drive Connector
J23 Power Supply 2-pin Connector (On-Off Switch)
J24 Power Supply 3-pin Connector
J25 Wake Up On Ring Connector

J26 HDD/Power LED Connector
(Power = 1-2, HDD = 3-4)

J27 Internal VGA Connector
J28 Monitor Signal Connector
J29 External Speaker Power Connector
J30 Media Console Connector

JP1 External Speaker
enable = 1-2, disable = open

JP2 System Board Bus Clock

  Jumper      ------ System Bus Clock ------
              66.6MHz      60MHz       50MHz

 ---------------------------------------------------
   JP2       1-3 & 2-4   3-5 & 4-6   3-5 & 2-4
 Other Jumper settings are not supported and might cause system failures.


JP3 Processor Bus Factor

  Jumper      --- Core/Bus Frequency Ratio ---
                3/2          2/1         2.5/1         3/1

 --------------------------------------------------------------
   JP3       1-3 & 2-4    3-5 & 2-4    3-5 & 4-6    1-3 & 4-6
 Other Jumper settings are not supported and might cause system failures.


JP7 System Board FLASH Jumper
normal = 1-2, write protect = 2-3

JP8 Video interrupt

JP10 VGA
enable = 1-2, disable = 2-3

JP11 Diskette Drive (FDD) write enable
enable = 1-2, disable = open

JP12 CMOS, Power-on Password Reset
normal = 1-2, clear = 2-3

P1, P2, P11 Power Supply Connector
P11 3.3 Vdc Power Supply Connector
U1, Processor


System Memory

Both Type A-1 and Type A-2 system boards support 72-Pin, 60 or 70 NS, tin-lead, fast page or EDO, 32 or 36 bit Single Inline Memory Module, (SIMM).

Type A-2 can also accept a 168-Pin 60 NS, Gold, or EDO, 64 bit Dual Inline Memory Module, (DIMM). See SIMM Configurations below.

SIMM Configurations Board Type A-2

Factory-installed SIMMS are non-parity SIMMS. However, both parity and non-parity industry standard SIMMS are supported.
When installing SIMMs, run the Setup Utility to clear XX62 or 164 error codes.

Total Memory J9 Socket 1 J10 Socket 2 J12 Socket 3 J13 Socket 4
8 MB 4 MB 4 MB - -
8 MB - - 4 MB 4 MB
16 MB 4 MB 4 MB 4 MB 4 MB
16 MB 8 MB 8 MB - -
16 MB - - 8 MB 8 MB
24 MB 4 MB 4 MB 8 MB 8 MB
24 MB 8 MB 8 MB 4 MB 4 MB
32 MB 8 MB 8 MB 8 MB 8 MB
32 MB 16 MB 16 MB - -
32 MB - - 16 MB 16 MB
40 MB 4 MB 4 MB 16 MB 16 MB
40 MB 16 MB 16 MB 4 MB 4 MB
48 MB 8 MB 8 MB 16 MB 16 MB
48 MB 16 MB 16 MB 8 MB 8 MB
64 MB 16 MB 16 MB 16 MB 16 MB
64 MB 32 MB 32 MB - -
64 MB - - 32 MB 32 MB
72 MB 4 MB 4 MB 32 MB 32 MB
72 MB 32 MB 32 MB 4 MB 4 MB
80 MB 8 MB 8 MB 32 MB 32 MB
84 MB 32 MB 32 MB 8 MB 8 MB
96 MB 16 MB 16 MB 32 MB 32 MB
96 MB 32 MB 32 MB 16 MB 16 MB
128 MB 32 MB 32 MB 32 MB 32 MB


Referesh Rates and Monitor Frequencies
(Type A-2 System Board with ATI-MACH64 Video Chip / 2MB DRAM)

                                  RESOLUTION
   COLOR         640x480     800x600    1024x768   1280x1024

 --------------------------------------------------------------
        256      120Hz       120Hz       120Hz        75Hz
     64.000      120Hz        85Hz        85Hz         N/A
 16.000.000       90Hz        70Hz         N/A         N/A


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