American Megatrends MegaRAC M300V, User Manual

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Chapter Five : OPMA Connector Specification and Pin Assignments
49
Chapter 5 OPMA Connector Specification
and Pin Assignments
Overview
OPMA leverages the 200-pin SO-DIMM connector commonly used by DDR2 infrastructure for
mobile computers. This connector is reasonably small and contains 200 pins which support
currently defined and projected expansion signals. These connectors are available in both vertical
and right angle versions and will be readily available for the next two to three years at relatively
low cost. The number of OPMA connector insertions/removal cycles in the field is expected to be
low and on par with the expected number of insertions/removal cycles performed for DRAM
sticks. Thus, no connector reliability or longevity issues are expected when leveraging this DRAM
infrastructure for OPMA.
Pin Assignments for the OPMA Connector
Side A Side B
To Pin From From Pin To
GROUND 1 GND RSVD 2
3 RSVD GND 4 GROUND
GROUND
5
GND RSVD
6
7 RSVD GND 8 GROUND
GROUND 9 GND DVI_TX0_H 10 <> TMDS0+
LPC_DRQ => 11 LDRQ_L DVI_TX0_L 12 <> TMDS0-
LPC_LFRAME => 13 LFRAME_L GND 14 GROUND
LPC_LAD0 <>
15
LAD0 DVI_TX1_H
16
<> TMDS1+
LPC_CLKRUN <= 17 LCKRUN_L DVI_TX1_L 18 <> TMDS1-
LPC_LAD1 => 19 LAD1 GND 20 GROUND
LPC_LAD2 => 21 LAD2 DVI_TX2_H 22 <> TMDS2+
LPC_LAD3 => 23 LAD3 DVI_TX2_L 24 <> TMDS2-
LPC_SERIRQ <>
25
SERIRQ GND
26
GROUND
LPC_RST => 27 LRST_L DVI_TX_CLK_H 28 <>
LPC_CLK => 29 LCLK DVI_TX_CLK_L 30 <> TMDSCLK-
GROUND 31 GND GND 32 GROUND
33 RSVD DVI_DDC_DATA 34 <> EDID_SDA
35
RSVD DVI_DDC_CLK
36
<> EDID_SCL
GROUND 37 GND RSVD 38
MCARD_I2C_PRIVATE0_SCL <> 39 MCARD_I2C_PRIVATE0_SCL ANALOG_DDC_DATA 40
MCARD_I2C_PRIVATE0_SDA <> 41 MCARD_I2C_PRIVATE0_SDA ANALOG_DDC_CLK 42
GROUND 43 GND RSVD 44
IPMB_SCL <>
45
MCARD_I2C_IPMB_SCL ANALOG_RED
46
IPMB_SDA <> 47 MCARD_I2C_IPMB_SDA ANALOG_GREEN 48
GROUND 49 GND ANALOG_BLUE 50
SIDEBAND_NIC_SCL <> 51 MCARD_I2C_SIDEBAND_NIC_SCL ANALOG_HSYNC 52
SIDEBAND_NIC_SDA <> 53 MCARD_I2C_SIDEBAND_NIC_SDA ANALOG_VSYNC 54
SIDEBAND_NIC_ALERT =>
55
MCARD_I2C_SIDEBAND_NIC_ALERT GND
56
GROUND
GROUND 57 GND RSVD 58
MCARD_I2C_PRIVATE1_SCL <> 59 MCARD_I2C_PRIVATE1_SCL RSVD 60
MCARD_I2C_PRIVATE1_SDA <> 61 MCARD_I2C_PRIVATE1_SDA GND 62 GROUND