Answer:According to the specification of VIA KT600, only DDR 266 SDRAM is supported if FSB 200 MHz CPU is installed. DDR 400 SDRAM is supported with FSB 266, 333, or 400 MHz CPU. Please refer to the following supporting table.
| FSB \ Memory | DDR 266 | DDR 333 | DDR 400 |
| 200 MHz | Yes | No | No
| 266 MHz | Yes | Yes | Yes | | 333 MHz | Yes | Yes | Yes | | 400 MHz | Yes | Yes | Yes | |
