Mxm immobilizer
a-little-wifi·mxm-immobilizer·mxm immobilizer/mxm_immobilizer.kicad_pcb
About the Mxm immobilizer PCB
Mxm immobilizer is an open source PCB design by a-little-wifi, published on GitHub. It is a 6-layer board measuring 249.4 × 111.5 mm, with 413 components from 97 distinct parts.
Other key parts include the sy6280, 74LVC1G373 and LM2596S-5. By type, the board carries 148 capacitors, 121 resistors, 43 test points, 36 transistors, 17 diodes and 12 inductors.
From the project
MXM to PCIe adapter
It's an MXM to PCIe adapter! All the ones on aliexpress and stuff are overpriced and incomplete smh 😔 Also this one's open source lol.
It's not quite done yet, a lot of stuff is currently suboptimal, but it might actually work in its current state. No guarantees though.
6 Displayport outputs DP++ support for passive HDMI dongles VGA output Dual channel LVDS output Full PCIe x16 link Up to 190W of power Clevo extra MXM power cable support OEM pins Reserved pins Power control pins JTAG header Fan header with PWM

Main components on the Mxm immobilizer
Mxm immobilizer bill of materials (BOM)
413 components, 97 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | sy6280 | SOT-23-5 | U1, U2 |
| 1 | 74LVC1G373 | SOT-23-6 | U3 |
| 1 | LM2596S-5 | TO-263-5_TabPin3 | U4 |
| 1 | Fan_Tacho_PWM | FanPinHeader_1x04_P2.54mm_Vertical | M1 |
| 36 | 2N7002 | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +28 |
| 1 | PEX_STD_SW#_SWITCH | PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | VGA_DISABLE#_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J2 |
| 1 | 3V3_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | PWR_LEVEL_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | PWR_EN_SWITCH | PinHeader_2x03_P2.54mm_Vertical | J5 |
| 1 | TH_ALERT#_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | Clevo_MXM_PWR | PinHeader_1x08_P2.00mm_Vertical_SMD_Pin1Left | J7 |
| 1 | MXM_JTAG | PinHeader_2x05_P1.27mm_Vertical | J8 |
| 1 | 5V_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | LVDS_VOLTAGE_SWITCH | PinHeader_1x03_P2.54mm_Vertical | J10 |
| 1 | LVDS_header_30p | PinHeader_2x15_P2.00mm_Vertical | J11 |
| 1 | HC-5557-2*4AW HCTL(华灿天禄) | CONN-TH_8P-P4.20_5557-2X4AW | 8-Pin-PWR1 |
| 1 | DC-042E XKB Connectivity(中国星坤) | DC-IN-TH_DC-042E | DC1 |
| 3 | HYC16-DP20-178 HOAUC | DP-SMD_HYC16-DP20-178 | DP_A1, DP_E1, DP_F1 |
| 8 | Polyfuse | Fuse_0805_2012Metric | F1, F2, F3, F4, F5, F6, F7, F8 |
Show 77 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AS0B826-S78B-7H FOXCONN(富士康) | CONN-SMD_AS0B826-S78B-7H | MXM1 |
| 1 | Bus_PCI_Express_x16 | BUS_PCIexpress_x16 | PCIe_x16_1 |
| 1 | TH_OVERT#_RESET | SW_SPST_EVQPE1 | SW1 |
| 1 | VGA_ID2 | PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | VGA_ID0 | PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | VGA_DISABLE#_POS2 | PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | PNL_PWR_EN | PinHeader_1x01_P2.54mm_Vertical | TP4 |
| 1 | PNL_BL_EN | PinHeader_1x01_P2.54mm_Vertical | TP5 |
| 1 | PNL_BL_PWM | PinHeader_1x01_P2.54mm_Vertical | TP6 |
| 1 | HDMI_CEC | PinHeader_1x01_P2.54mm_Vertical | TP7 |
| 1 | OEM1 | PinHeader_1x01_P2.54mm_Vertical | TP8 |
| 1 | OEM3 | PinHeader_1x01_P2.54mm_Vertical | TP9 |
| 1 | OEM5 | PinHeader_1x01_P2.54mm_Vertical | TP10 |
| 1 | OEM7 | PinHeader_1x01_P2.54mm_Vertical | TP11 |
| 1 | RSVD_227 | PinHeader_1x01_P2.54mm_Vertical | TP12 |
| 1 | RSVD_229 | PinHeader_1x01_P2.54mm_Vertical | TP13 |
| 1 | RSVD_231 | PinHeader_1x01_P2.54mm_Vertical | TP14 |
| 1 | RSVD_233 | PinHeader_1x01_P2.54mm_Vertical | TP15 |
| 1 | RSVD_235 | PinHeader_1x01_P2.54mm_Vertical | TP16 |
| 1 | RSVD_237 | PinHeader_1x01_P2.54mm_Vertical | TP17 |
| 1 | RSVD_239 | PinHeader_1x01_P2.54mm_Vertical | TP18 |
| 1 | RSVD_241 | PinHeader_1x01_P2.54mm_Vertical | TP19 |
| 1 | RSVD_243 | PinHeader_1x01_P2.54mm_Vertical | TP20 |
| 1 | RSVD_245 | PinHeader_1x01_P2.54mm_Vertical | TP21 |
| 1 | RSVD_247 | PinHeader_1x01_P2.54mm_Vertical | TP22 |
| 1 | RSVD_249 | PinHeader_1x01_P2.54mm_Vertical | TP23 |
| 1 | PRSNT_L# | PinHeader_1x01_P2.54mm_Vertical | TP24 |
| 1 | RSVD_238 | PinHeader_1x01_P2.54mm_Vertical | TP25 |
| 1 | PRSNT_R# | PinHeader_1x01_P2.54mm_Vertical | TP26 |
| 1 | 27MHZ_REF | PinHeader_1x01_P2.54mm_Vertical | TP27 |
| 1 | JTAG_TESTEN | PinHeader_1x01_P2.54mm_Vertical | TP28 |
| 1 | GPIO0 | PinHeader_1x01_P2.54mm_Vertical | TP29 |
| 1 | GPIO1 | PinHeader_1x01_P2.54mm_Vertical | TP30 |
| 1 | GPIO2 | PinHeader_1x01_P2.54mm_Vertical | TP31 |
| 1 | OEM0 | PinHeader_1x01_P2.54mm_Vertical | TP32 |
| 1 | OEM2 | PinHeader_1x01_P2.54mm_Vertical | TP33 |
| 1 | OEM4 | PinHeader_1x01_P2.54mm_Vertical | TP34 |
| 1 | OEM6 | PinHeader_1x01_P2.54mm_Vertical | TP35 |
| 1 | PEX_CLK_REQ# | PinHeader_1x01_P2.54mm_Vertical | TP36 |
| 1 | Fan_Taco | PinHeader_1x01_P2.54mm_Vertical | TP37 |
| 1 | TH_ALERT#_POS2 | PinHeader_1x01_P2.54mm_Vertical | TP38 |
| 1 | PSU_ID | PinHeader_1x01_P2.54mm_Vertical | TP39 |
| 1 | LVDS_DDC_CLK | PinHeader_1x01_P2.54mm_Vertical | TP40 |
| 1 | LVDS_DDC_DAT | PinHeader_1x01_P2.54mm_Vertical | TP41 |
| 1 | LVDS_U_HPD | PinHeader_1x01_P2.54mm_Vertical | TP42 |
| 1 | LVDS_L_HPD | PinHeader_1x01_P2.54mm_Vertical | TP43 |
| 1 | DB15_Female_HighDensity_MountingHoles | DSUB-TH_DS1038-15FBNSIA74-0CC | VGA1 |
| 3 | 3VM11201-D730-7H FOXCONN(富士康) | CONN-SMD_3VM11201-D730-7H | mDP_B1, mDP_C1, mDP_D1 |
| 8 | D | D_SMA | D1, D2, D3, D4, D5, D6, D16, D17 |
| 6 | D_Dual_Series_CAK_Parallel | SOT-23 | D7, D8, D9, D10, D13, D14 |
| 2 | LED | LED_0603_1608Metric | D11, D12 |
| 1 | SS52-C51497 MDD | SMB_L4.6-W3.6-LS5.3-RD | D15 |
| 5 | FerriteBead | R_0402_1005Metric | FB1, FB2, FB3, FB4, FB5 |
| 6 | 10UH | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1, L2, L3, L4, L6, L7 |
| 1 | 33uH | L_12x12mm_H8mm | L5 |
| 21 | 10U | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C7, C45, C46, C47, C63, C65, C67 +13 |
| 17 | 100n | C_0603_1608Metric | C2, C4, C5, C6, C8, C62, C64, C66 +9 |
| 3 | 22P | C_0603_1608Metric | C3, C44, C48 |
| 60 | 0.1U | C_0402_1005Metric | C9, C10, C11, C12, C13, C14, C15, C16 +52 |
| 6 | 220P | C_0603_1608Metric | C17, C26, C35, C49, C93, C94 |
| 6 | 0.1U | C_0603_1608Metric | C58, C59, C60, C61, C79, C80 |
| 1 | 100U | C_Elec_6.3x7.7 | C92 |
| 1 | 220U | C_Elec_6.3x7.7 | C95 |
| 1 | 5nF | C_0603_1608Metric | C116 |
| 32 | 0.22uF | C_0402_1005Metric | C117, C118, C119, C120, C121, C122, C123, C124 +24 |
| 26 | 10K | R_0603_1608Metric | R1, R2, R4, R5, R6, R12, R18, R19 +18 |
| 6 | 5.1M | R_0603_1608Metric | R3, R8, R9, R10, R119, R120 |
| 3 | 150 | R_0603_1608Metric | R7, R11, R13 |
| 6 | 1M | R_0603_1608Metric | R14, R15, R16, R17, R114, R115 |
| 15 | 100K | R_0603_1608Metric | R22, R23, R25, R26, R28, R29, R31, R32 +7 |
| 1 | 147K | R_0603_1608Metric | R34 |
| 1 | 7.15K | R_0603_1608Metric | R35 |
| 2 | 0R | R_2816_7142Metric | R36, R40 |
| 55 | 0R | R_0603_1608Metric | R37, R38, R39, R48, R49, R50, R51, R52 +47 |
| 3 | 1K | R_0603_1608Metric | R46, R71, R121 |
| 2 | 3.4K | R_0603_1608Metric | R74, R75 |
| 1 | 3.1K | R_0603_1608Metric | R118 |
Mxm immobilizer design files
The KiCad project lives in the a-little-wifi/mxm-immobilizer repository on GitHub; these links point at the commit this page was built from.
Mxm immobilizer: common questions
How big is the Mxm immobilizer PCB?
The Mxm immobilizer measures 249.4 × 111.5 mm, has 6 copper layers and is 1.5584 mm thick.
How many components are on the Mxm immobilizer?
413 components, from 97 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mxm immobilizer design files?
From the a-little-wifi/mxm-immobilizer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mxm immobilizer design in my own project?
The repository has no license, so all rights stay with a-little-wifi. Use it as a reference, and ask the author before reusing the design.