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ASUS P5B & TWIN2X2048-6400C4 Dual Channel?


Deltadog

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I've just put together an ASUS P5B (plain jane) w/ Intel Core-2 Duo E6400, and some very price friendly TWIN2X2048-6400C4.

 

Updated to Bios 0211 dated 7/14/2006.

 

With all settings set to auto the machine operates just fine in single channel mode filling DIMM slots A1 & A2. However, machine won't post with slots A1 and B1 filled to try dual channel.

 

Suggestions?

 

Also there appears to be no way to manually set, or even view, SDRAM settings with AI Over Clock Tuner set to manual. Am I just SOL with the low end P5B board?

 

Thanks for any help,

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Ram Guy,

 

As luck would have it there's a new 0309 Bios out today. Can you offer advice for settings? Other than default AUTO settings?

 

ASUS P5B, Intel Core-2 Duo E6400, TWIN2X2048-6400C4. I have no wish to overclock but would like to hit DDR2-800 up from the DDR2-667 limitation by default mentioned on 2-14 of the manual (and hopefully overcome with this BIOS update).

 

Advanced

- JumperFree Configuration

-- AI Tuning: Manual

 

CPU Frequency

DRAM Frequency

PCI Express Frequency

PCI Clock Synchronization Mode

Spread Spectrum

Memory Voltage

CPU Vcore Voltage

FSP Termination Voltage

 

Advanced

- Chipset

-- North Bridge Chipset Configuration

--- Config DRAM Timing by SPD: Disabled

 

DRAM CAS# Latency

DRAM RAS# to CAS# Delay

DRAM RAS# Precharge

DRAM RAS# Active to Precharge

DRAM Write Recovery Time

DRAM TREC

DRAM TRRD

Write to Read Delay

Read to Precharge Delay

Write to Precharge Delay

 

Help much appreciated.

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Advanced

- JumperFree Configuration

-- AI Tuning: Manual

 

CPU Frequency Depends on your CPU 200

DRAM Frequency 667 Mhz

Memory Voltage 2.1 Volt

 

Advanced

- Chipset

-- North Bridge Chipset Configuration

--- Config DRAM Timing by SPD: Disabled

 

DRAM CAS# Latency = 4

DRAM RAS# to CAS# Delay =4

DRAM RAS# Precharge =4

DRAM RAS# Active to Precharge =12

Any setting not listed should be set to Bios default! And please load setup defaults before you make the changes

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