Since Lenovo does not host a standalone PDF named "IS7XM Manual," you must download the manual for the full system.
Step 1: Identify your computer's full model number (e.g., ThinkCentre M55e Type 9645 or Lenovo 3000 J200). This is printed on a sticker on the back or bottom of the case.
Step 2: Go to the Lenovo Support Website. lenovo is7xm rev 1.0 motherboard manual
Step 3: Enter your specific Machine Type/Model number in the search bar.
Step 4: Navigate to the "Documentation" or "Guides and Manuals" section. Since Lenovo does not host a standalone PDF
Step 5: Download the Hardware Maintenance Manual (HMM). This PDF contains the official board layout diagram for the IS7XM, parts lists, and advanced troubleshooting steps.
Since you cannot find the standalone manual, here are the extracted specs for the IS7XM Rev 1.0. Use this as your quick reference. Lenovo often combines Power LED + Power SW
| Feature | Specification |
| :--- | :--- |
| CPU Support | Intel Core i7-3770 (Ivy Bridge) down to Pentium G620. |
| Memory | 4 x DDR3 DIMM slots (240-pin). Supports up to 32GB (8GB per slot).
Speed: 1333MHz / 1600MHz (Depends on CPU). |
| Video | 1 x VGA (DB-15), 1 x DisplayPort (DP).
(No DVI or HDMI natively on the IO panel). |
| Expansion Slots | 1 x PCIe x16 (Gen 3.0 - requires Ivy Bridge CPU).
1 x PCIe x1.
1 x PCI (Legacy 5V slot).
1 x PCIe x4 (Open ended usually). |
| Storage | 4 x SATA 3.0 Gb/s (Blue ports).
2 x SATA 6.0 Gb/s (White ports). |
| USB Ports | Rear: 4 x USB 3.0 (Blue), 2 x USB 2.0.
Internal: 2 x USB 2.0 headers (supporting 4 additional ports). |
| Audio | Realtek ALC662 (5.1 channel). Rear: Line out, Mic, Line in. |
| LAN | Realtek RTL8111E (Gigabit Ethernet). |
| Power Connectors | Standard ATX 24-pin (Main).
Proprietary 14-pin? No – Rev 1.0 uses a standard 12V CPU 4-pin, but some OEM Lenovo PSUs have a 14-pin main. Check your PSU. |
Lenovo often combines Power LED + Power SW into a single proprietary 2×2 header.