661FM3-V (PCB 2.0)


Live Update 5

MSI Live Update 5 is a powerful and useful application for updating the latest BIOS and Drivers, saving you time and lowers the risk of updating. End-users can install and run the Live Update 5 software on their computers with the companion CD or downloading the app from the MSI website.

- Automatically Detect the BIOS/Driver/VGA/Utility Update
- Support Microsoft Windows XP/Vista/7 32/64bit


MSI Reminds You...

  1. The specifications may differ from areas and we keep the right to change without notice. Please check the specific Specification with your local dealers.
  2. The color of the product might be affected by photography and the monitor's setting, which might be different from the real product.



The Specification may change without notice. The actual products sold are different from areas. Please check the detailed Specification with your local dealers.




• Supports Intel® Pentium 4 / Celeron D processors in LGA775 package.
• Supports up to Pentium 4 5xx, 6xx(EM64T) and Celeron D 3xx sequence processor.
• Supports FSB 533/800MHz
Please refer to CPU Support for compatible CPU; the above description is for reference only.


SiS® 648FX/648/661GX/661FX Chipset
 - Integrated graphic controller. (for 661FX/661GX only)
 - Supports DDR333/400 DRAM.

SiS® 964/964L Chipset
- High Definition Audio interface
- 8 USB 2.0/1.1 ports
- 2 channel Ultra ATA66/100/133 Bus Master IDE controller
- 2 serial ATA Host controllers (for 964 only)

Main Memory

• Supports two memory banks using two 184-pin unbuffered DDR DIMM.
• Supports up to 2GB memory size without ECC.
• Supports DDR333/400.


• One AGP (Accelerated Graphics Port) 4x/8x slot.
• Two PCI 2.3 32-bit PCI bus slots (support 3.3V/5V PCI bus interface).


On-Board IDE / SATA 

• Dual IDE controllers integrated in SiS® 964/964L
- Support P/O, Bus Master, Ultra DMA66/100/133 operation.
- Can connect up to four IDE devices.

• Dual SATA controllers integrated in SiS® 964 (for 964 only)
- Up to 1.5Gb/sec transfer speeds.
- Can connect up to two Serial ATA drives.



• High Definition link controller integrated in SiS® 964/964L
• 6 channels (HDA) audio codec
 - Meet PC2001 audio performance requirement.



• Realtek® 8201CL
 - Integrated Fast Ethernet PHY.
 - Supports 10Mb/s, 100Mb/s.
 - Compliance with PCI 2.2.
 - Supports ACPI Power Management.

Internal I/O Connectors

- ATX 20-Pin power connector
- 4-pin ATX 12V power connector
- CPU / System FAN connectors
- 1 x Floppy disk drive connector
- 2 x serial ATA connectors (for 964 only)
- 2 x ATA133 IDE drive connectors
- Serial port connector (COM2)
- Front panel connector
- Front panel audio connector
- 2 x USB 2.0 connector support additional 4 ports
- CD-in connector
- Chassis Intrusion switch connectors
- Clear CMOS jumper

MSI Reminds You...
• The floppy disk cable will be optional.

Back Panel I/O Ports

- 1 x Parallel
- 1 x Serial port (COM 1)
- 1 x VGA (for 661FX/661GX only)
- 1 x PS/2 Keyboard
- 1 x PS/2 Mouse
- 1 x Audio I/O (Line-in/Line-out/MIC)
- 4 x USB 2.0
- 1 x RJ45 LAN Jack


• 4Mb BIOS.
• Provides DMI2.0, WfM2.0, WOL, WOR, chassis intrusion, and SMBus for system management.


24.4 cm(L) x 19.5 cm(W) MicroATX Form Factor


6 mounting holes.

Product Accessories

MSI Reminds You...
• The accessories will probably be different according to the different selling areas of product models. For details of accessories, please refer to the descriptions on the product package.


The Specification may change without notice. The actual products sold are different from areas. Please check the detailed Specification with your local dealers.