Syl 8884 Unofficial Homepage

Connectors and Jumper settings


Connectors
Cache-Size
Internal/External Battery, CMOS-Clear
ECP-DMA Channel
Flash-Chip Voltage
Board-Speed
CPU-Voltage
CPU-Selection
Meaning of certain Jumpers

Pin 1 is marked with little white triangles.

Connectors
J30Turbo-SWOpen = Turbo-Speed
J3Turbo-LEDCase LED Connector
J31ResetClose = Reset
J29HDD-LEDCase LED Connector
J33SpeakerCase Speaker Connector
J34PWR-LED/KeylockPin 1-3 PWR-LED, Pin 4-5 Keylock
J1 Level 2 Cache Size
12 128kBnone
34 256kB1-2 (def.)
J1 512kB1-2,3-4

J2 Internal/External Battery, CMOS-Clear
Internal1-2 (def.)
External1-4
Clear CMOS3-4

J37/J38 ECP DMA Channel
DMA Channel 1J37 & J38 1-2
DMA Channel 3J37 & J38 2-3 (def.)

J5 Flash-Chip Voltage Selector
12V1-2
5V2-3
(E)PROMoff (def.)
But my board came with a SST-Flash Chip

J28 Board Speed
135 25MHz:5-6
246 33MHz:1-2,3-4,5-6
J28 40MHz:3-4,5-6
 50MHz:1-2
def.=33MHz20MHz:all off

J8/J9/J35/J36 CPU Voltage
    J36J35J8/J9
1 13.3Vonon2-3
2 23.47Voffon2-3
3 33.6Vonoff2-3
J8 J94.0Voffoff2-3
   5.0Vxxxx1-2
J8=J9 always xx=don't care

CPU-Selection-Jumpers-Layout
56 3 3
34 2 2
12 1 1
J16 J7 J6

CPU-Selection Jumpers
AMD AM5x86
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offononon1-22-31-21-2offoffoff3-43-4off1-22-31-21-2
              3-44-5  
AMD DX4 Enhanced (SV8T)
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offononon1-22-3off1-2offoffoff3-43-4off1-22-31-21-2
              3-44-5  
AMD DX/DX2/DX4 (NV8T)
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoffoffoffoffoffoffoffoff1-23-4off1-2off2-31-2
              3-4   
Cyrix / IBM / SGS / TI 5x86
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
onononon1-22-3off1-2offoffoff3-43-4off1-22-31-21-2
              3-44-5  
Cyrix / IBM / SGS / TI DX4
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2offoff2-3off1-22-33-43-42-31-21-21-22-3
              3-42-3  
Cyrix / IBM / SGS / TI DX2
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2offoff2-32-31-22-33-43-42-31-21-21-22-3
              3-42-3  
Intel P24T
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2off2-31-2off2-31-25-62-31-21-24-51-21-2
           3-4  3-42-3  
Intel P24D
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offononon1-22-32-31-2offoffoff3-43-4off1-24-51-21-2
              3-42-3  
Intel DX4-100
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2offoff1-2offoffoff3-43-4off1-24-51-21-2
              3-42-3  
Intel DX-S / DX2-S
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2off2-31-2offoffoff3-43-4off1-24-51-21-2
              3-42-3  
Intel DX / DX2
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoffoffoffoffoffoffoffoff1-23-4off1-2off1-21-2
                  
Intel SX-S
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2offoff1-2offoffoff3-4offoff2-34-51-21-2
               2-3  
Intel SX
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoffoffoffoffoffoffoffoff1-2offoff2-3off1-21-2
                  
UMC DX / DX2
J27J26J25J24J23J22J21J20J19J18J17J16J15J14J13J12J7J6
offoffoffoff1-2off2-31-2offoffoff3-43-4off1-24-51-21-2
              3-42-3  

Meaning of certain Jumpers
J21CPU Clock Mode
 1-2: x2 (=x4 for some CPUs)
 off: x3
J22CPU L1 Cache Mode
 1-2: Write Through Mode
 2-3: Write Back Mode

NOTE: I can't be responsible for the accuracy of this information, nor can I promise that you'll be able to solve all of your problems. Further, you must consider and understand you do any modifications at your own risk.

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