ECS 661FX-M7 V1.1 SiS 661FX Motherboard
Description
ECS 661FX-M7 V1.1 LGA 775 SiS 661FX Micro ATX Intel Motherboard. The ECS 661FX-M7 ATX Motherboard is an excellent replacement board or for a good value for your build. This one's compatible with most of the boards and chips already in your box. It's built around the SiS 661FX and SiS 964 chipsets and supports 800/533 MHz FSB Pentium 4 Prescott/Celeron D processors with Hyper-Threading Technology. Its Dual Channel DDR 400 architecture lets you use your current RAM and upgrade the system memory to up to 2 gigabytes.

Specifications:
CPU | º LGA775 socket for latest Intel Pentium 4 / Celeron D processor |
CHIPSET | º SiS® 661FX & 964 |
GRAPHICS | º Integrated SiS Real256E Graphics |
MEMORY | º Single-channel DDR memory architecture |
EXPANSION SLOT | º 1 x AGP 8X/4X slot |
STORAGE | º Support by SiS® 964 |
AUDIO | º Realtek ALC655 6-Channel audio CODEC |
LAN | º Realtek RTL8201BL 10/100 Mbps Fast Ethernet PHY |
REAR PANEL I/O | º 1 x PS/2 keyboard & PS/2 mouse connectors |
INTERNAL I/O CONNECTORS & HEADERS | º 1 x 20-pin ATX Power Supply Connector & 4-pin 12V Connector |
SYSTEM BIOS | º Award BIOS with 4Mb Flash ROM |
FORM FACTOR | º Micro-ATX Size, 244mm*244mm |

CPU Socket List:
Socket | Family | Processor | Wattage | Frequency | Cache | Stepping | Since BIOS |
LGA775 | Intel Pentium 4 | 505 | N/A | 2.66 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 506 | N/A | 2.66 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 510 | N/A | 2.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 511 | N/A | 2.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 515 | N/A | 2.93 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 516 (G1) (84W) | N/A | 2.93 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 519J (E1) (84W) | N/A | 3.06 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 519K (G1) (84W) | N/A | 3.06 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 520/520J | N/A | 2.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 521 | N/A | 2.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 524 | N/A | 3.06 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 530/530J | N/A | 3.0 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 531 | N/A | 3.0 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 540/540J | N/A | 3.2 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 541 | N/A | 3.2 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 550/550J | N/A | 3.4 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 551 | N/A | 3.4 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 560/560J | N/A | 3.6 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 561 | N/A | 3.6 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 570J | N/A | 3.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 571 | N/A | 3.8 GHz | 1MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 630 | N/A | 3.0 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 640 | N/A | 3.2 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 650 | N/A | 3.4 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 650 (R0) (84W) | N/A | 3.40GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 660 | N/A | 3.6 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 662 | N/A | 3.6 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 670 | N/A | 3.8 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 670 (R0) (115W) | N/A | 3.80GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Pentium 4 | 672 | N/A | 3.8 GHz | 2MB | N/A | 1.1g |
LGA775 | Intel Celeron D | 325J | N/A | 2.53 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 326 | N/A | 2.53 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 330J | N/A | 2.66 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 331 | N/A | 2.66 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 335J | N/A | 2.8 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 336 | N/A | 2.80 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 340J | N/A | 2.93 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 341 | N/A | 2.93 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 345J | N/A | 3.06 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 346 | N/A | 3.06 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 351 | N/A | 3.2 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 355 | N/A | 3.33 GHz | 256KB | N/A | 1.1g |
LGA775 | Intel Celeron D | 355 (G1) (84W) | N/A | 3.33 GHz | 256KB | N/A | 1.1g |


