Shut down the system completely and .
Connect your Power LED leads across Pin 2 (+) and Pin 4 (-) .
If the board fails to start up after installing new components or modifying core performance settings, you must manually reset the BIOS configuration via the clear CMOS jumper ( CLR_CMOS ): Lenovo Is6xm Rev 1.0 Motherboard Manual
Located near the bottom right edge of the board, this header features an atypical 14-pin grid (often lacking the standard markings seen on retail motherboards). Use this pin mapping to bridge standard case wires:
You can find the detailed layout, including front panel pinouts and jumper settings, in the ThinkCentre M81, M91, and M91p Hardware Maintenance Manual provided by Lenovo Support Header/Port Description Standard 24-pin ATX and 4-pin CPU power. Front Panel Proprietary 13-pin (2x7, one pin missing) Lenovo header. Note: Standard ATX cases may require an adapter. Shut down the system completely and
If you need the or front panel pinout diagram extracted from the HMM, let me know and I can provide that as well.
It typically includes pins for the Power Switch, Power LED, HDD LED, and Reset Switch. : A separate connector used for an external thermal sensor. Internal Headers : 2x USB 2.0 headers and 1x Front Audio header. Maintenance & Troubleshooting Lenovo IS6XM - The Retro Web Use this pin mapping to bridge standard case
: 6x USB 2.0 ports, 1x DisplayPort, 1x VGA, 1x RJ45 (Gigabit LAN), 1x Serial (COM) port, and Audio I/O. Front Panel Header : A non-standard 13-pin header (labeled
The IS6XM uses several proprietary Lenovo headers that can be tricky for users migrating the board to a standard retail case.
| Specification | Detail | | :--- | :--- | | | Foxconn (for Lenovo) | | Model Number | IS6XM Rev. 1.0 | | Form Factor | Micro-ATX (mATX) | | CPU Socket | LGA 1155 | | Compatible Processors | Intel 2nd & 3rd Gen Core i7, i5, i3, Pentium, Celeron, and Xeon E3-12xx v2 | | Chipset | Intel Q67 Express (Note: Some sources may list Q65/H61, but Q67 is the primary reference) | | Memory (RAM) | 4x 240-pin DDR3 DIMM slots, dual-channel architecture | | Max Memory Support | Up to 32GB of non-ECC DDR3 memory | | Expansion Slots | 1x PCI Express x16 (for graphics), 1x PCI Express x1, 2x PCI | | Storage Interfaces | SATA II and SATA III connectors | | Integrated Audio | 6-channel HD Audio CODEC, Realtek ALC662 | | Integrated Ethernet | Gigabit LAN, Intel 82579LM | | Rear I/O Ports | 1x VGA, 1x DisplayPort, 6x USB 2.0, 1x Serial (RS-232), 1x RJ-45 Ethernet, Audio jacks | | USB Headers | Additional USB 2.0 headers for front panel ports | | BIOS | 8MB flash ROM (e.g., MX25L6406EM2I) |