The P4M800 PRO-M7 manual
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... Does not support Windows 98SE and Windows ME. Main Memory Supports up to 3.8GHz. Supports DDR2-400/533. Chipset North Bridge: VIA P4M800 Pro. South Bridge: VIA VT8237R PLUS. Front side bus at the following frequency ranges: - 400MHz (100MHz Core Clock) - 533MHz (133MHz Core Clock... to protect the socket pin when sending this mainboard for reference.) DIMM Socket Location DDR Module Total Memory Size DDR_A1 DDR_A2 64MB/128MB/256MB/512MB/1GB *1 64MB/128MB/256MB/512MB/1GB *1 Max is only for service. P4M800 Pro-M7 CHAPTER 1: INTRODUCTION 1.1 FEATURES CPU Supports LGA 775.
... Does not support Windows 98SE and Windows ME. Main Memory Supports up to 3.8GHz. Supports DDR2-400/533. Chipset North Bridge: VIA P4M800 Pro. South Bridge: VIA VT8237R PLUS. Front side bus at the following frequency ranges: - 400MHz (100MHz Core Clock) - 533MHz (133MHz Core Clock... to protect the socket pin when sending this mainboard for reference.) DIMM Socket Location DDR Module Total Memory Size DDR_A1 DDR_A2 64MB/128MB/256MB/512MB/1GB *1 64MB/128MB/256MB/512MB/1GB *1 Max is only for service. P4M800 Pro-M7 CHAPTER 1: INTRODUCTION 1.1 FEATURES CPU Supports LGA 775.