SOYO COMPUTER CO., LTD. SY-4SAW/2/W5 Processor UMCU5S/80486SX/SL80486SX/80486SX2/SL80486SX2/CX486DX/ TI486DX/SGS486DX/80486DX/SL80486DX/CX486DX2/TI486DX2/ SGS486DX2/UMC486DX2/AM486DX2/80486DX2/SL80486DX2/ 80486DX4/TI486DX4/SGS486DX4/AM486DX4/80486DX4/P24D/P24T/ CX M1SC/AM X5 Processor 25/33/40/50(internal)/50/63(internal)/66(internal)/75(internal)/ Speed 80(internal)/83(internal)100(internal)/120(internal)/133(internal)/ 150(internal)/160(internal)MHz Chip Set SIS Maximum 256MB Onboard Memory Cache 256/512KB BIOS Award Dimensions 250mm x 220mm I/O 32-bit VESA local bus slot, 32-bit PCI slots (4), green PC Options connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2) NPU None Options [Image] CONNECTIONS Function Label Function Label Serial port 2 CN1 Speaker J18 Serial port 1 CN2 Reset switch J19 Floppy drive CN3 External battery J20 interface Parallel port CN4 Turbo switch J21 IDE interface 1 CN5 Turbo LED J22 IDE interface 2 CN6 IDE interface LED 2 JP17 PS/2 mouse interface J1 IDE interface LED 1 JP18 Green PC connector J7 32-bit PCI slots PC1 - PC4 Power LED & keylock J17 32-bit VESA local bus SL1 slot USER CONFIGURABLE SETTINGS Setting Label Position » Factory configured - do not alter JP1 Pins 1 & 2 closed BIOS type select EPROM/flash JP2 Pins 2 & 3 closed BIOS type select flash JP2 Pins 1 & 2 closed » Monitor type select color JP3 Closed Monitor type select monochrome JP3 Open » PS/2 mouse disabled JP4 Open PS/2 mouse enabled JP4 Closed » CMOS memory normal operation JP5 Pins 1 & 2 closed CMOS memory clear JP5 Pins 2 & 3 closed » Factory configured - do not alter JP12 Pins 1 & 2 closed » Factory configured - do not alter JP19 Pins 2 & 3 closed » Factory configured - do not alter JP27 Pins 2 & 3 closed » Factory configured - do not alter JP28 Pins 2 & 3 closed » Factory configured - do not alter JP48 N/A » Factory configured - do not alter JP51 N/A DRAM Size Bank 0 Bank 1 Bank 2 Bank 3 2MB (1) 512K x None None None 36 2MB (1) 256K x (1) 256K x None None 36 36 3MB (1) 512K x (1) 256K x None None 36 36 3MB (1) 256K x (1) 256K x (1) 256K x None 36 36 36 3MB (1) 256K x (1) 512K x None None 36 36 4MB (1) 1M x 36 None None None 4MB (1) 512K x (1) 256K x (1) 256K x None 36 36 36 4MB (1) 512K x (1) 512K x None None 36 36 4MB (1) 256K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 DRAM (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 5MB (1) 1M x 36 (1) 256K x None None 36 5MB (1) 512K x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 5MB (1) 256K x (1) 512K x (1) 512K x None 36 36 36 5MB (1) 256K x (1) 1M x 36 None None 36 6MB (1) 1M x 36 (1) 256K x (1) 256K x None 36 36 6MB (1) 1M x 36 (1) 512K x None None 36 6MB (1) 512K x (1) 512K x (1) 512K x None 36 36 36 6MB (1) 512K x (1) 1M x 36 None None 36 7MB (1) 1M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 8MB (1) 2M x 36 None None None 8MB (1) 1M x 36 (1) 512K x (1) 512K x None 36 36 8MB (1) 1M x 36 (1) 1M x 36 None None 9MB (1) 2M x 36 (1) 256K x None None 36 9MB (1) 256K x (1) 1M x 36 (1) 1M x 36 None 36 9MB (1) 256K x (1) 2M x 36 None None 36 10MB (1) 2M x 36 (1) 256K x (1) 256K x None 36 36 10MB (1) 2M x 36 (1) 512K x None None 36 10MB (1) 512K x (1) 1M x 36 (1) 1M x 36 None 36 10MB (1) 512K x (1) 2M x 36 None None 36 11MB (1) 2M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 12MB (1) 2M x 36 (1) 512K x (1) 512K x None 36 36 12MB (1) 2M x 36 (1) 1M x 36 None None 12MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 None 12MB (1) 1M x 36 (1) 2M x 36 None None 13MB (1) 256K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 14MB (1) 512K x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 16MB (1) 4M x 36 None None None 16MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 None None 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 17MB (1) 4M x 36 (1) 256K x None None 36 17MB (1) 256K x (1) 2M x 36 (1) 2M x 36 None 36 17MB (1) 256K x (1) 4M x 36 None None 36 18MB (1) 4M x 36 (1) 256K x (1) 256K x None 36 36 18MB (1) 4M x 36 (1) 512K x None None 36 18MB (1) 512K x (1) 2M x 36 (1) 2M x 36 None 36 18MB (1) 512K x (1) 4M x 36 None None 36 19MB (1) 4M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 20MB (1) 4M x 36 (1) 512K x (1) 512K x None 36 36 20MB (1) 4M x 36 (1) 1M x 36 None None 20MB (1) 2M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 20MB (1) 1M x 36 (1) 2M x 36 (1) 2M x 36 None 20MB (1) 1M x 36 (1) 4M x 36 None None DRAM (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 24MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 None 24MB (1) 4M x 36 (1) 2M x 36 None None 24MB (1) 2M x 36 (1) 2M x 36 (1) 2M x 36 None 24MB (1) 2M x 36 (1) 4M x 36 None None 28MB (1) 4M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 32MB (1) 8M x 36 None None None 32MB (1) 4M x 36 (1) 2M x 36 (1) 2M x 36 None 32MB (1) 4M x 36 (1) 4M x 36 None None 33MB (1) 8M x 36 (1) 256K x None None 36 33MB (1) 256K x (1) 4M x 36 (1) 4M x 36 None 36 33MB (1) 256K x (1) 8M x 36 None None 36 34MB (1) 8M x 36 (1) 256K x (1) 256K x None 36 36 34MB (1) 8M x 36 (1) 512K x None None 36 34MB (1) 512K x (1) 4M x 36 (1) 4M x 36 None 36 34MB (1) 512K x (1) 8M x 36 None None 36 35MB (1) 8M x 36 (1) 256K x (1) 256K x (1) 256K x 36 36 36 36MB (1) 8M x 36 (1) 512K x (1) 512K x None 36 36 36MB (1) 8M x 36 (1) 1M x 36 None None 36MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 None 36MB (1) 1M x 36 (1) 8M x 36 None None 40MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 None 40MB (1) 8M x 36 (1) 2M x 36 None None 40MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 None 40MB (1) 2M x 36 (1) 8M x 36 None None 44MB (1) 8M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 48MB (1) 8M x 36 (1) 2M x 36 (1) 2M x 36 None 48MB (1) 8M x 36 (1) 4M x 36 None None 48MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 None 48MB (1) 4M x 36 (1) 8M x 36 None None 49MB (1) 256K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 50MB (1) 512K x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 52MB (1) 1M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 56MB (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 None 64MB (1) 8M x 36 (1) 8M x 36 None None 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 16M x 36 None None None 65MB (1) 256K x (1) 8M x 36 (1) 8M x 36 None 36 65MB (1) 16M x 36 (1) 256K x None None 36 66MB (1) 16M x 36 (1) 256K x (1) 256K x None 36 36 66MB (1) 16M x 36 (1) 512K x None None 36 66MB (1) 512K x (1) 8M x 36 (1) 8M x 36 None 36 DRAM (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 67MB (1) 16M x (1) 256K x (1) 256K x (1) 256K x 36 36 36 36 68MB (1) 16M x (1) 512K x (1) 512K x None 36 36 36 68MB (1) 16M x (1) 1M x 36 None None 36 68MB (1) 1M x 36 (1) 8M x 36 (1) 8M x 36 None 72MB (1) 16M x (1) 1M x 36 (1) 1M x 36 None 36 72MB (1) 16M x (1) 2M x 36 None None 36 72MB (1) 2M x 36 (1) 8M x 36 (1) 8M x 36 None 76MB (1) 16M x (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 36 80MB (1) 16M x (1) 2M x 36 (1) 2M x 36 None 36 80MB (1) 16M x (1) 4M x 36 None None 36 80MB (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 80MB (1) 4M x 36 (1) 8M x 36 (1) 8M x 36 None 96MB (1) 16M x (1) 4M x 36 (1) 4M x 36 None 36 96MB (1) 16M x (1) 8M x 36 None None 36 96MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 None 112MB (1) 16M x (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 36 128MB (1) 16M x (1) 16M x 36 None None 36 128MB (1) 16M x (1) 8M x 36 (1) 8M x 36 None 36 192MB (1) 16M x (1) 16M x 36 (1) 16M x 36 None 36 256MB (1) 16M x (1) 16M x 36 (1) 16M x 36 (1) 16M x 36 36 Note: Board also accepts x 32 SIMMs. CACHE SIZE Size Bank 0 TAG 256KB (4) 64K x 8 (1) 16K/32K x 8 512KB (4) 128K x 8 (1) 32K x 8 CACHE JUMPER Size JP29 JP47 256KB (Aster TAG) Open Pins 2 & 3 closed 256KB (Winbond TAG) Pins 1 & 2 closed Open 512KB Pins 2 & 3 closed Pins 2 & 3 closed CPU TYPE Setting JP30 JP31 JP32 JP33 UMC U5S Open 1 & 2, 3 & 1 & 2, 3 & 3 & 4 4 4 80486SX 3 & 4 Open 2 & 3 Open SL80486SX 3 & 4 Open 2 & 3 Open 80486SX2 3 & 4 Open 2 & 3 Open SL80486SX2 3 & 4 Open 2 & 3 Open CX486DX 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 TI486DX 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 SGS486DX 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 80486DX 3 & 4 3 & 4 1 & 2, 3 & Open 4 SL80486DX 3 & 4 3 & 4 1 & 2, 3 & Open 4 CX486DX2-50/66 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 CX486DX2-80 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 TI486DX2-50/66 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 TI486DX2-80 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 SGS486DX2-50/66 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 SGS486DX2-80 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 UMC486DX2 3 & 4 3 & 4 1 & 2, 3 & Open 4 AM486DX2(NV8B) 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 AM486DX2-66(NV8T) 3 & 4 1 & 2 1 & 2, 3 & Open 4 AM486DX2-66 3 & 4 1 & 2 1 & 2, 3 & Open 4 AM486DX2-80(NV8T) 3 & 4 1 & 2 1 & 2, 3 & Open 4 AM486DX2-80 3 & 4 1 & 2 1 & 2, 3 & Open 4 80486DX2 3 & 4 3 & 4 1 & 2, 3 & Open 4 SL80486DX2 3 & 4 3 & 4 1 & 2, 3 & Open 4 CX486DX4 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 TI486DX4 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 SGS486DX4 2 & 3 3 & 4 1 & 2, 3 & 2 & 3 4 AM486DX4(NV8T) 3 & 4 1 & 2 1 & 2, 3 & Open 4 AM486DX4(NV8B) 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 80486DX4 (5v) 3 & 4 3 & 4 1 & 2, 3 & Open 4 80486DX4 (3.45v) 3 & 4 3 & 4 1 & 2, 3 & Open 4 P24D 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 P24T 3 & 4 2 & 3 1 & 2, 3 & 1 & 2 4 CX M1SC 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 AM X5-150 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 AM X5-133/160 1 & 2, 3 & 3 & 4 1 & 2, 3 & Open 4 4 Note: Pins designated should be in the closed position. CPU TYPE (CON’T) Setting JP34 JP36 JP37 JP38 UMC U5S Open Open Open Open 80486SX Open Open 4 & 5 Open SL80486SX Open Open 4 & 5 Open 80486SX2 Open Open 4 & 5 Open SL80486SX2 Open Open 4 & 5 Open CX486DX Open Open 2 & 3 2 & 3 TI486DX Open Open 2 & 3 2 & 3 SGS486DX Open Open 2 & 3 2 & 3 80486DX Open Open 4 & 5 Open SL80486DX Open Open 4 & 5 Open CX486DX2-50/66 (3.6v) Open Open 2 & 3 2 & 3 CX486DX2-50/66 (5v) Open Open 2 & 3 2 & 3 CX486DX2-80 Open Open 2 & 3 2 & 3 TI486DX2-50/66 (3.6v) Open Open 2 & 3 2 & 3 TI486DX2-50/66 (5v) Open Open 2 & 3 2 & 3 TI486DX2-80 Open Open 2 & 3 2 & 3 SGS486DX2-50/66 (3.6v) Open Open 2 & 3 2 & 3 SGS486DX2-50/66 (5v) Open Open 2 & 3 2 & 3 SGS486DX2-80 Open Open 2 & 3 2 & 3 UMC486DX2 Open Open 4 & 5 Open AM486DX2(NV8B) 1 & 2 Open 4 & 5 1 & 2 AM486DX2-66(NV8T) 2 & 3 Open 4 & 5 Open AM486DX2-66 2 & 3 Open 4 & 5 Open AM486DX2-80(NV8T) 2 & 3 Open 4 & 5 Open AM486DX2-80 2 & 3 Open 4 & 5 Open 80486DX2 Open Open 4 & 5 Open SL80486DX2 Open Open 4 & 5 Open CX486DX4 Open Open 2 & 3 2 & 3 TI486DX4 Open Open 2 & 3 2 & 3 SGS486DX4 Open Open 2 & 3 2 & 3 AM486DX4(NV8T) 1 & 2 Open 4 & 5 Open AM486DX4(NV8B) 1 & 2 Open 4 & 5 1 & 2 80486DX4 (5v) Open Open 4 & 5 Open 80486DX4 (3.45v) Open Open 4 & 5 Open P24D 1 & 2 Open 4 & 5 1 & 2 P24T Open 1 & 2 1 & 2 1 & 2 CX M1SC 1 & 2 Open 4 & 5 1 & 2 AM X5-150 1 & 2 Open 4 & 5 1 & 2 AM X5-133/160 1 & 2 Open 4 & 5 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE (CON’T) Setting JP39 JP40 JP41 JP42 UMC U5S 3 & 4 1 & 3, Open 2 & 3 2 & 4 80486SX 3 & 4 1 & 3, Open 2 & 3 2 & 4 SL80486SX 3 & 4 1 & 3, Open 2 & 3 2 & 4 80486SX2 3 & 4 1 & 3, Open 2 & 3 2 & 4 SL80486SX2 3 & 4 1 & 3, Open 2 & 3 2 & 4 CX486DX Unidentified 1 & 3, Open 2 & 3 2 & 4 TI486DX Unidentified 1 & 3, Open 2 & 3 2 & 4 SGS486DX Unidentified 1 & 3, Open 2 & 3 2 & 4 80486DX 3 & 4 1 & 3, Open 2 & 3 2 & 4 SL80486DX 3 & 4 1 & 3, Open 2 & 3 2 & 4 CX486DX2-50/66 (3.6v) 5 & 6 3 & 5, Open 2 & 3 4 & 6 CX486DX2-50/66 (5v) 5 & 6 1 & 3, Open 2 & 3 2 & 4 CX486DX2-80 1 & 2 3 & 5, Open 2 & 3 4 & 6 TI486DX2-50/66 (3.6v) 5 & 6 3 & 5, Open 2 & 3 4 & 6 TI486DX2-50/66 (5v) 5 & 6 1 & 3, Open 2 & 3 2 & 4 TI486DX2-80 1 & 2 3 & 5, Open 2 & 3 4 & 6 SGS486DX2-50/66 (3.6v) 5 & 6 3 & 5, Open 2 & 3 4 & 6 SGS486DX2-50/66 (5v) 5 & 6 1 & 3, Open 2 & 3 2 & 4 SGS486DX2-80 1 & 2 3 & 5, Open 2 & 3 4 & 6 UMC486DX2 3 & 4 1 & 3, Open 2 & 3 2 & 4 AM486DX2(NV8B) 3 & 4 3 & 5, 1 & 2 1 & 2 4 & 6 AM486DX2-66(NV8T) 3 & 4 3 & 5, Open 2 & 3 4 & 6 AM486DX2-66 3 & 4 1 & 3, Open 2 & 3 2 & 4 AM486DX2-80(NV8T) 3 & 4 3 & 5, Open 2 & 3 4 & 6 AM486DX2-80 3 & 4 1 & 3, Open 2 & 3 2 & 4 80486DX2 3 & 4 1 & 3, Open 2 & 3 2 & 4 SL80486DX2 3 & 4 1 & 3, Open 2 & 3 2 & 4 CX486DX4 3 & 4 3 & 5, Open 2 & 3 4 & 6 TI486DX4 3 & 4 3 & 5, Open 2 & 3 4 & 6 SGS486DX4 3 & 4 3 & 5, Open 2 & 3 4 & 6 AM486DX4 (NV8T) 3 & 4 3 & 5, Open 2 & 3 4 & 6 AM486DX4(NV8B) 3 & 4 3 & 5, 1 & 2 1 & 2 4 & 6 80486DX4 (5v) 3 & 4 1 & 3, Open 2 & 3 2 & 4 80486DX4 (3.45v) 3 & 4 3 & 5, Open 2 & 3 4 & 6 P24D 3 & 4 1 & 3, 1 & 2 1 & 2 2 & 4 P24T 3 & 4 1 & 3, Open 1 & 2 2 & 4 CX M1SC 3 & 4 3 & 5, 1 & 2 2 & 3 4 & 6 AM X5-150 3 & 4 3 & 5, 1 & 2 1 & 2 4 & 6 AM X5-133/160 3 & 4 3 & 5, 1 & 2 1 & 2 4 & 6 Note: Pins designated should be in the closed position. CPU TYPE (CON’T) Setting JP43 JP44 JP45 JP46 UMC U5S Open 1 & 2 2 & 3 4 & 5 80486SX Open 1 & 2 1 & 2 2 & 3 SL80486SX Open 1 & 2 1 & 2 2 & 3 80486SX2 Open 1 & 2 1 & 2 2 & 3 SL80486SX2 Open 1 & 2 1 & 2 2 & 3 CX486DX Open Open 1 & 2 1 & 2 TI486DX Open Open 1 & 2 1 & 2 SGS486DX Open Open 1 & 2 1 & 2 80486DX Open 1 & 2 1 & 2 2 & 3 SL80486DX Open 1 & 2 1 & 2 2 & 3 CX486DX2-50/66 (3.6v) Open Open 1 & 2 1 & 2 CX486DX2-50/66(5v) Open Open 1 & 2 1 & 2 CX486DX2-80 Open Open 1 & 2 1 & 2 TI486DX2-50/66 (3.6v) Open Open 1 & 2 1 & 2 TI486DX2-50/66 (5v) Open Open 1 & 2 1 & 2 TI486DX2-80 Open Open 1 & 2 1 & 2 SGS486DX2-50/66 (3.6v) Open Open 1 & 2 1 & 2 SGS486DX2-50/66 (5v) Open Open 1 & 2 1 & 2 SGS486DX2-80 Open Open 1 & 2 1 & 2 UMC486DX2 Open 1 & 2 1 & 2 2 & 3 AM486DX2(NV8B) 1 & 2 2 & 3 1 & 2 2 & 3 AM486DX2-66(NV8T) Open 1 & 2 1 & 2 2 & 3 AM486DX2-66 Open 1 & 2 1 & 2 2 & 3 AM486DX2-80(NV8T) Open 1 & 2 1 & 2 2 & 3 AM486DX2-80 Open 1 & 2 1 & 2 2 & 3 80486DX2 Open 1 & 2 1 & 2 2 & 3 SL80486DX2 Open 1 & 2 1 & 2 2 & 3 CX486DX4 Open Open 1 & 2 1 & 2 TI486DX4 Open Open 1 & 2 1 & 2 SGS486DX4 Open Open 1 & 2 1 & 2 AM486DX4 (NV8T) Open 1 & 2 1 & 2 2 & 3 AM486DX4(NV8B) Open 2 & 3 1 & 2 2 & 3 80486DX4 (5v) Open 1 & 2 1 & 2 2 & 3 80486DX4 (3.45v) Open 1 & 2 1 & 2 2 & 3 P24D Open 2 & 3 1 & 2 2 & 3 P24T Open Open 1 & 2 2 & 3 CX M1SC Open 2 & 3 1 & 2 2 & 3 AM X5-150 Open 2 & 3 1 & 2 2 & 3 AM X5-133/160 1 & 2 2 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position. CPU SPEED Setting JP14 JP15 JP21 JP22 25MHz Pins 1 & 2 Pins 1 & 2 Open Open closed closed 33MHz Pins 1 & 2 Pins 1 & 2 Closed Closed closed closed 40MHz Pins 1 & 2 Pins 1 & 2 Closed Open closed closed 50iMHz Pins 1 & 2 Pins 1 & 2 Open Open closed closed 50MHz Pins 2 & 3 Pins 1 & 2 Open Closed closed closed 63iMHz Pins 1 & 2 Pins 1 & 2 Open Open closed closed 66iMHz Pins 1 & 2 Pins 1 & 2 Closed Closed closed closed 75iMHz Pins 1 & 2 Pins 1 & 2 Open Open closed closed 80iMHz Pins 1 & 2 Pins 1 & 2 Closed Open closed closed 83iMHz Pins 1 & 2 Pins 1 & 2 Closed Closed closed closed 100iMHz Pins 1 & 2 Pins 1 & 2 Closed Closed closed closed 120iMHz Pins 1 & 2 Pins 1 & 2 Closed Open closed closed 133iMHz Pins 1 & 2 Pins 1 & 2 Closed Closed closed closed 150iMHz Pins 2 & 3 Pins 1 & 2 Open Closed closed closed 160iMHz Pins 1 & 2 Pins 1 & 2 Closed Open closed closed DMA Setting JP49 JP50 None Open Open DMA1 Pins 2 & 3 closed Pins 2 & 3 closed DMA3 Pins 1 & 2 closed Pins 1 & 2 closed