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Asus a7n8x, cmx512-3200c2 bios settings


gmowad

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I just tweaked my bios settings and looking for confirmation that I got it right:

 

cpu external freq: 200Mhz

cpu frequency multiple setting: auto

x cpu frequency multiple: 13.0x

system performance: user defined

cpu interface: aggressive

memory frequency: 200%

resulting frequency: 400Mhz

memory timings: user defined

sdram active precharge delay: 6

sdram ras to cas delay: 3

sdram ras precharge delay: 3

sdram cas latency: 2t

 

ddr reference voltage: 2.7v

 

Also, I am thinking about upgrading from 512Mb to 1Gb. The DDR dimm installed right now is a cmx512-3200c2 (purchased in 2002). Can I purchase another 512Mb dimm and run in dual channel mode?

 

cpuz.txt attached.

 

Thanks!

Asus a7n8x deluxe, rev 1.04

Bios rev 1008

AMD Athlon XP 2100+

Corsair cmx512-3200c2

cpuz.txt

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Your motherboard will accept Dual Channel Mode but this board is very picky about the DRAM SPD settings. Be careful to purchase the correctly identical model of DRAM or you might well find yourself with 1GB in single channel mode. In that system, the difference is quite minimal though so I would not really worry about being in single channel mode. ~5% differential in most applications and games.
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Both of the module would need to be the exact same part number and revision and when you go to two module you would need to set the memory Frequency at 100% so its in sync with the CPU.

 

RAM GUY,

 

Thank you for your response. However, would you please expand on the bios settings? The reason I ask is because cpu-z and post now reports an AMD XP1500+ cpu:

 

Processor 1 (ID = 0)

Number of cores 1

Number of threads 1 (max 1)

Name AMD Athlon XP

Codename Palomino

Specification AMD Athlon XP 1500+

Package Socket A (462)

CPUID 6.6.2

Extended CPUID 7.6

Core Stepping A5

Technology 0.18 um

Core Speed 1303.1 MHz (13.0 x 100.2 MHz)

Rated Bus speed 200.5 MHz

 

Chipset

--------------------------------------------------------------------------

Northbridge NVIDIA nForce2 SPP rev. A2

Southbridge NVIDIA nForce2 MCP-T rev. A3

Memory Type DDR

Memory Size 512 MBytes

Memory Frequency 200.5 MHz (2:4)

CAS# 2.0

RAS# to CAS# 3

RAS# Precharge 3

Cycle Time (tRAS) 6

 

Here is cpu-z prior to tweaking:

 

Processor 1 (ID = 0)

Number of cores 1

Number of threads 1 (max 1)

Name AMD Athlon XP

Codename Palomino

Specification AMD Athlon XP 2100+

Package Socket A (462)

CPUID 6.6.2

Extended CPUID 7.6

Core Stepping A5

Technology 0.18 um

Core Speed 1737.4 MHz (13.0 x 133.6 MHz)

Rated Bus speed 267.3 MHz

 

Chipset

--------------------------------------------------------------------------

Northbridge NVIDIA nForce2 SPP rev. A2

Southbridge NVIDIA nForce2 MCP-T rev. A3

Memory Type DDR

Memory Size 512 MBytes

Memory Frequency 133.6 MHz (1:1)

CAS# 2.0

RAS# to CAS# 3

RAS# Precharge 3

Cycle Time (tRAS) 6

 

This cpu is not unlocked. So now I'm confused a bit about what the optimal settings are for my situation.

 

Thank you!

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  • Corsair Employees

Load setup defaults with the modules in slots 2-3 and then set these settings:

 

 

Advanced Chipset Features Settings:

 

CPU External Frequency = 133

CPU Frequency Multiple = 13x

Memory Frequency = 100%

System Performance = Optimal

CPU Vcore = Auto

AGP Frequency can be given the following values: 66Mhz

DDR Reference Voltage – 2.7V

AGP VDDQ Voltage – 1.5V

 

Memory:

 

SDRAM CAS Latency = 2.5T

SDRAM RAS Precharge Delay = 3

SDRAM RAS to CAS Delay = 3

SDRAM Active Precharge Delay = 6

 

Then test with http://www.memtest.org

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Load setup defaults with the modules in slots 2-3 and then set these settings:

 

 

Advanced Chipset Features Settings:

 

CPU External Frequency = 133

CPU Frequency Multiple = 13x

Memory Frequency = 100%

System Performance = Optimal

CPU Vcore = Auto

AGP Frequency can be given the following values: 66Mhz

DDR Reference Voltage – 2.7V

AGP VDDQ Voltage – 1.5V

 

Memory:

 

SDRAM CAS Latency = 2.5T

SDRAM RAS Precharge Delay = 3

SDRAM RAS to CAS Delay = 3

SDRAM Active Precharge Delay = 6

 

Then test with http://www.memtest.org

 

 

DerekT & RAM GUY,

 

Thank you for the prompt responses.

 

I followed your recommendations and then tweaked some. I think it's about

the best I can get it. Here is how it's configured now:

 

These are the actual BIOS fields in the setup screen:

 

CPU External Freq (Mhz): 133MHz

CPU Freq Multiple Setting: Menu

CPU Freq Multiple: 13.0X

System Performance: User Defined

CPU Interface: Aggressive

Memory Frequency: 150% (Ram Guy recommended 100%)

Resulting Frequency: 200MHz (any benefit here?)

Memory Timings: User Defined

SDRAM Active Precharge Delay: 6

SDRAM RAS to CAS Delay: 3

SDRAM RAS to Precharge Delay: 3

SDRAM CAS Latency: 2T

xFSB Spread Spectrum: Disabled

xAGP Spread Spectrum: Disabled

CPU VCore Setting: Auto

xCPU VCore: 1.750V

Graphics Aperture Size: 64MB

AGP Frequency: Auto

System Bios Cacheable: Disabled

Video Ram Cacheable: Disabled

DDR Reference Voltage: 2.7V

AGP VDDQ Voltage: 1.5V

AGP 8X Support: Enabled

AGP Fast Write Capability: Enabled

 

I downloaded memtest from http://www.memtest.org and ran error free for over ten

hours.

 

If you have any additional thoughts or tweaks, please let me know.

 

Thanks!

 

Attached is revised cpuz report....

cpuz final.txt

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Load setup defaults with the modules in slots 2-3 and then set these settings:

 

 

Advanced Chipset Features Settings:

 

CPU External Frequency = 133

CPU Frequency Multiple = 13x

Memory Frequency = 100%

System Performance = Optimal

CPU Vcore = Auto

AGP Frequency can be given the following values: 66Mhz

DDR Reference Voltage – 2.7V

AGP VDDQ Voltage – 1.5V

 

Memory:

 

SDRAM CAS Latency = 2.5T

SDRAM RAS Precharge Delay = 3

SDRAM RAS to CAS Delay = 3

SDRAM Active Precharge Delay = 6

 

Then test with http://www.memtest.org

 

 

DerekT & RAM GUY,

 

Thank you for the prompt responses.

 

I followed your recommendations and then tweaked some. I think it's about

the best I can get it. Here is how it's configured now:

 

These are the actual BIOS fields in the setup screen:

 

CPU External Freq (Mhz): 133MHz

CPU Freq Multiple Setting: Menu

CPU Freq Multiple: 13.0X

System Performance: User Defined

CPU Interface: Aggressive

Memory Frequency: 150% (Ram Guy recommended 100%)

Resulting Frequency: 200MHz (any benefit here?)

Memory Timings: User Defined

SDRAM Active Precharge Delay: 6

SDRAM RAS to CAS Delay: 3

SDRAM RAS to Precharge Delay: 3

SDRAM CAS Latency: 2T

xFSB Spread Spectrum: Disabled

xAGP Spread Spectrum: Disabled

CPU VCore Setting: Auto

xCPU VCore: 1.750V

Graphics Aperture Size: 64MB

AGP Frequency: Auto

System Bios Cacheable: Disabled

Video Ram Cacheable: Disabled

DDR Reference Voltage: 2.7V

AGP VDDQ Voltage: 1.5V

AGP 8X Support: Enabled

AGP Fast Write Capability: Enabled

 

I downloaded memtest from http://www.memtest.org and ran error free for over ten

hours.

 

If you have any additional thoughts or tweaks, please let me know.

 

Thanks!

 

Attached is revised cpuz report....

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