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Home / I-Opener Areas / I-Opener Technical Info Reference (MODERATED) MotherBoard Connector & Switch Identification MotherBoard Connector & Switch Identification

MotherBoard Connector & Switch Identification (modified 0 times) V3 Hacker I was admiring my I-Openers MB and I realized that there is still alot we don't know about it. I looked everywhere and could not find a listing of MB connectors and functions. So heres my list, let the hunt begin: CN1 - ????? - 10pin header located to the right of the IDE connector? CN2 - ????? - (Video display connector?) CN3 - Right Speaker CN4 - ????? - top left between backlight(CN6) & transformer(TR1) CN5 - ????? - (IDE connector?) CN6 - LCD Backlighting CN7 - ????? - right of CPU below right speaker conn CN8 - Left Speaker CN9 - SoDIMM socket CN10 - Flash Socket (blank traces) - above KB conn CN11 - ????? - 30 pin blank traces to the left of SoDIMM CN12 - COM1 - to the right of SoDIMM CN13 - COM2 - between the battery & the parallel port CN14 - PS/2 KB/Mouse - bottom left corner CN15 - Phone Line-In to Modem - above telephone jacks CN16 - 19v Power In - below BIOS chip. CN17 - ????? - lef 05-12-2000 21:14:04

RE:MotherBoard Connector & Switch Identification (modified 0 times) V3 Hacker CN1 - VGA Out - 10pin header located to the right of the IDE connector from TackHead's VGA adapter mod. 05-13-2000 12:42:39

RE:MotherBoard Connector & Switch Identification (modified 0 times) V3+Hacker Original list got truncated, so I'm trying again with an updated list. CN1 - VGA Out - 10pin header located to the right of the IDE connector? CN2 - ????? - (LCD Video display connector?) CN3 - Right Speaker CN4 - ????? - top left between backlight(CN6) & transformer(TR1) CN5 - ????? - (IDE connector?) CN6 - LCD Backlighting - top left corner CN7 - ????? - right of CPU below right speaker conn CN8 - Left Speaker CN9 - SoDIMM socket CN10 - Compact Flash Socket (blank traces) - above PS/2 KB conn CN11 - ????? - 30 pin blank traces to the left of SoDIMM CN12 - COM1 - to the right of SoDIMM CN13 - COM2 - between the battery & the parallel port CN14 - PS/2 KB/Mouse - bottom left corner CN15 - Phone Line-In to Modem - above phone jacks CN16 - 19v Power In - below BIOS chip. CN17 - ????? - left of the parallel port CN18 - Phone pass-through jack CN19 - Phone Line In jack CN20 - Parallel Port - bottom left 05-13-2000 13:54:47

RE:MotherBoard Connector & Switch Identification (modified 0 times) V3+Hacker list got truncated again, here is the rest. CN20 - Parallel Port - bottom left of MB CN21 - USB Port - right of phone jacks CN22 - USB Port #2 - right of USB#1 CN23 - Control Panel (Volume, power & contrast) - below power in JP1 - ????? - blank thrus in middle below & to right of W156H(U15)chip S1 - Reset Button - above parallel port SW1 - CPU Multiplier settings - 4 switch micro DIP switch - _____ white pad to the right of the CPU? SW2 - Bus Speed settings - 3 position micro header - _____ blank traces in middle of board to right of W156H(U15) chip SW3 - ????? - (System Config?) - 4 switch micro DIP switch - _____ below COM1 port to right of SoDIMM 05-13-2000 13:56:32

RE:MotherBoard Connector & Switch Identification (modified 0 times) Jim+Hearne These are known. CN1 - VGA out +2.5, 3.3 & 5 volts for some reason CN7 - CPU fan connector, needs associated components fitting SW1 - Cpu speed Muliplier SW2 - CPU bus speed JIM 05-14-2000 18:32:50

RE:MotherBoard Connector & Switch Identification (modified 0 times) gaelic CN11 appears to be a "Mobile Daughter Card" site. I say appears to be because the connector looks right and has at least some of the right mounting holes, but I've never pursued it further. Specs for the connector are at: http://developer.intel.com/design/mobile/mdcspec/index.htm Probably missing some resistors / caps as well. 05-15-2000 13:54:41

RE:MotherBoard Connector & Switch Identification (modified 0 times) duvell JP1 is connected to SW2 the FSB setting. Probably intended as a single jumper to switch between two viable FSB speeds. 05-15-2000 14:37:48

RE:MotherBoard Connector & Switch Identification (modified 0 times) V3+Hacker gaelic said: > CN11 appears to be a "Mobile Daughter Card" site. > I say appears to be because the connector looks right and > has at least some of the right mounting holes, but I've never pursued it further. After looking at the spec I think you may be right. There are some interesting audio signals here though, this might be a good spot for line inputs & outputs, microphones or headphone jacks. 4.2 Signal Names and Pinout 1 MONO_OUT/PC_BEEP AUDIO_PWRDN 2 3 GND MONO_PHONE 4 5 AUXA_RIGHT RESERVED 6 7 AUXA_LEFT GND 8 9 CD_GND 5 Vmain 10 11 CD_RIGHT RESERVED 12 13 CD_LEFT RESERVED 14 15 GND PRIMARY_DN 16 17 3.3Vaux/dual 5VD 18 19 GND GND 20 21 3.3 Vmain AC97_SYNC 22 23 A 05-15-2000 19:44:29

RE:MotherBoard Connector & Switch Identification (modified 0 times) V3 Hacker I just noticed another one (probably two). CN24 - ??? - must exist since CN25 does CN25 - empty 6 position modular connector - above reset switch. probably associated with U34 also CN17 has the same layout as the speaker and CPU fan connectors, maybe chassis fan or microphone? 05-15-2000 19:56:15

RE:MotherBoard Connector & Switch Identification (modified 0 times) turbowsr Profile CN24 is on opposite side of Trident chip, as the IDE connector. And on the that same side, the connector is 123...44 same as IDE drive. Connect IDE cable here, no need to use the 2143...43 cable. (I have read many others noticed this, and no one seemed to acknowledge their find.) 04-21-2002 16:30:38

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