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TWINX-CMX1024-3200C2PT Not Doing CAS2

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Following system:


Intel P4 3.2C Northwood

P4C800 Deluxe

1GB Corsair TWINX-CMX1024-3200C2PT


No overclocking.


Computer will not boot to Windows with the rated timings: 2-3-3-6.


Only way I can get into Windows is with 2.5-3-3-6.... Attempted increasing DDR voltage to 2.6, no dice.


Bad ram?

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  • Corsair Employee

Please make sure that you have the latest BIOS for your MB and load Setup/optimized default settings, and try the following BIOS settings;

TwinX1024 or TwinX512-3200C2

Advanced/Jumper Free

AI over clocking: Manual

CPU Freq: 200

DRAM Clock: 400 MHz

Memory or Dim Reference voltage: 2.75 Volts

System performance: AUTO

AGP Voltage: Default *unless you have ATI (9200 or 9600) or NVIDIA (5200 or 5700) then 1.6 Volts suggested!*


Configure Dram timing by SPD: Disabled/User define

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 6T

SDRAM Burst Length: 8

Performance Acceleration Mode: Auto

USB Legacy Support: Disabled

All other settings should be set to default settings!

Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure!

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