Turn off the computer and completely unplug the power cord from the wall.
Modern note: For current OS (Windows 10/11), use generic drivers or find legacy drivers on MSI’s support site under “MS-7829” or “Nightblade B85” (similar chipset).
Users looking to replace this board should note it is often found in Acer systems and may require specific front-panel adapters if moved to a non-Acer case.
A standard 9-pin header (10-pin layout with one pin missing) for front-facing USB 2.0 ports or internal smart components (like liquid cooler pumps). ms-7829 motherboard manual
Pins 3 and 4 (Top row). Orientation does not matter. Power LED (PWR_LED): Pins 1 (+) and 2 (-).
Understanding the layout is essential for upgrading components like RAM or adding a graphics card.
If your system fails to boot after a hardware change or a bad BIOS setting, you must reset the motherboard's Complementary Metal-Oxide-Semiconductor (CMOS). Turn off the computer and completely unplug the
1x PCIe x16 slot, 1x PCIe x1 slot, 1x Mini PCIe (mSATA) slot. Storage: 4x SATA 3.0 ports (6 Gbps). 2. MS-7829 Motherboard Layout and Connectors
Connects the main power supply cable from the PSU to power the motherboard chipsets and logic.
The MS-7829 (H81 chipset) has specific rules for RAM. A standard 9-pin header (10-pin layout with one
Push down firmly until the clips snap back into place, locking the module. Graphics Card Installation Locate the PCIe x16 slot. Open the plastic latch at the end of the slot.
| Pin | Signal | Pin | Signal | |-----|--------|-----|--------| | 1 | HD_LED+ | 2 | PWR_LED+ | | 3 | HD_LED- | 4 | PWR_LED- | | 5 | RST_SW | 6 | PWR_SW | | 7 | RST_GND | 8 | PWR_GND | | 9 | Reserved (NC) | 10 | No pin |