The Lenovo IS6XM Rev 1.0 is a micro-ATX motherboard commonly found in ThinkCentre M81 and M91/p desktop systems. While a dedicated "manual" for just the board is rare, its full technical details are documented in the ThinkCentre M91p Hardware Maintenance Manual . Core Specifications Socket & Chipset: LGA 1155 socket supporting 2nd Generation Intel Core i3, i5, and i7 processors (Sandy Bridge). It features the Intel Q67 chipset. Memory: 4x DDR3 DIMM slots supporting dual-channel configurations. Max capacity is typically listed as 32GB (4x 8GB), though some OEM configurations were validated for 16GB. Expansion Slots: 1x PCI Express x16 1x PCI Express x1 2x Legacy PCI slots Storage: 4x on-board SATA connectors (including SATA III support). Key Connectors & Pinouts Front Panel Header: This board uses a proprietary Lenovo 13-pin (2x7 with one pin blocked) header rather than standard 10-pin headers. Power: Standard 24-pin ATX power and a 4-pin 12V CPU power connector. Rear I/O: Includes a DisplayPort, VGA port, 6x USB 2.0 ports, 1x Serial (COM) port, and Gigabit Ethernet. Installation & Troubleshooting Tips Lenovo IS6XM Rev:1.0 Desktop Motherboard User Manual
Here’s a concise write-up regarding the Lenovo IS6XM Rev 1.0 motherboard — based on available technical references and typical Lenovo OEM board documentation.
Overview The Lenovo IS6XM Rev 1.0 is a micro-ATX motherboard used primarily in Lenovo ThinkCentre desktops, such as the M71e , M91p , and some Edge 71 series. It is an Intel Sandy Bridge platform board based on the Intel Q67 Express chipset, designed for business and professional environments. Key Specifications | Feature | Details | |-----------------------|----------------------------------------------| | Form factor | micro-ATX (24.5 cm × 24.5 cm approx.) | | CPU socket | LGA 1155 | | Supported CPUs | Intel Core 2nd gen (Sandy Bridge) — e.g., i3, i5, i7 (some 3rd gen with BIOS update) | | Chipset | Intel Q67 Express | | Memory slots | 4 x DDR3 DIMM (dual channel) | | Max memory | 16 GB (unofficially 32 GB with 8 GB modules) | | Memory speed | 1066 / 1333 MHz (non-ECC) | | Expansion slots | 1 x PCIe x16, 2 x PCIe x1, 1 x PCI | | Storage interfaces | 4 x SATA II (3 Gb/s), 2 x SATA III (6 Gb/s) | | Integrated graphics | Intel HD Graphics (from CPU) | | Rear I/O | PS/2, 6 x USB 2.0, VGA, RJ-45 LAN, audio jacks (line-out, mic, line-in), optional serial port | | Internal connectors | USB headers, COM header, LPT header, front panel audio, chassis fan, CPU fan | | Networking | Realtek RTL8111E (Gigabit Ethernet) | | Audio | Realtek ALC662 (5.1 channel) | Typical Use Case This motherboard is often found in office PCs and light workstation builds. Due to the Q67 chipset , it supports:
Intel vPro (depending on CPU) AMT 7.0 for remote management TPM header (for security) SATA RAID support (0,1,5,10) Lenovo Is6xm Rev 1.0 Motherboard Manual
BIOS & Limitations
BIOS is Lenovo proprietary (American Megatrends core), not a standard retail BIOS. No overclocking options. Some revisions may have a whitelist for Wi-Fi cards — non-Lenovo cards can cause boot errors. Power delivery supports CPUs up to 95W TDP (e.g., i7-2600), but not recommended for 125W parts.
Finding the Manual Lenovo does not always publish separate motherboard manuals for OEM boards. Instead, the motherboard documentation is embedded within the system’s hardware maintenance manual or user guide . To get the official information: The Lenovo IS6XM Rev 1
Go to Lenovo Support → search for your system model (e.g., ThinkCentre M71e). Download the Hardware Maintenance Manual (HMM) — this contains motherboard layout, jumper settings, CMOS clear procedure, and part numbers. If you need strictly the motherboard specs, community archives (like ManualsLib or RetroPC forums) may have scanned copies.
Example jumper settings (from HMM):
Clear CMOS : Move jumper (often labeled CLR_CMOS or PSWD ) from pins 1-2 to 2-3 for 10 seconds while unplugged. Password clear : Similar procedure but with a different jumper near the CMOS battery. It features the Intel Q67 chipset
Known Issues & Tips
CPU compatibility : Will not boot with Ivy Bridge CPUs unless BIOS version ≥ 9AJTxxA. SATA speed : Despite having SATA III ports, performance may be capped on older BIOS versions. Power supply : Uses standard 24-pin ATX + 4-pin CPU — compatible with standard PSUs. Front panel header : Pinout is standard Intel/AMD, but double-check with HMM for power LED polarity.