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1 | Chasis Intrusion Header | 15 | Graphics and memory | C | RJ45 |
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| PL17 |
| controller hub (GMCH) |
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2 | Hard Switch PSU jumper | 16 | 4MB display cache | D | USB (Dual) |
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| PL18 |
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3 | Front panel | 17 | PCI expansion slots | E | Serial Port 1 |
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| PL10,11,12,13 |
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4 | Floppy disk PL21 | 18 | Debug connector PL15 | F | VGA |
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5 | Main power PL19 | 19 | System fan power PL9 | G | Parallel |
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6 | Primary IDE Controller PL22 | 20 | CPU fan power PL8 | H | Line output |
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7 | Secondary IDE Controller | 21 | Processor | I | Line input |
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| PL16 |
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8 | Super I/O | 22 | LAN controller | J | Mic input |
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9 | Firmware Hub (FWH) | 23 | ATAPI audio LINE in (natural) | K | MIDI & Joystick | |
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| PL5 |
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10 | Buzzer | 24 | ATAPI CD audio in (green) | L | Speed LED (Yellow) | |
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| PL6 |
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11 | Main()memory DIMMs MM1,2 *&+%25 | ATAPI telephony)(black) PL7,M | Link/Activity+# | LED (Green) | ||
12 | Lithium Cell (CR2032) | 26 | AC’97 Audio controller |
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13 | I/O controller hub (ICH) | A | Keyboard |
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14 | Clock synth | B | Mouse |
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Not fitted | Normal operation | |||||
| Forces processor to lowest multiplier (x2) |
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| |||
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| $Clear CMOS | |||
, | ||||||
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| |||
Link 1-2 and 3-4 when 5V standby rail is not available
| 3 | 4 |
| 1 | 2 |
PL19 | PL18 | |
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| |
MITSUBISHI ELECTRIC MOTHERBOARD DIVISION | PAGE 13 OF 45 |
