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Can A8N-E go dual with old+new VS512MB400


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hi, I am new here and would like to know if the old vs512mb400 (purchased last year) works with new vs512mb400(purchased yesterday) in DUAL channel mode... and what Bios setting should I have to enable dual channel? I have already tried set dram voltage to 2.7/2.75/2.8/2.85... but none will get them into dual... btw, i have tried putting them in all kind of slots combination i can come out with... but none works as well....


however, if truely the old and the new one cant work dual mode, what if I get both new ones? will it works?


Pardon my noobness and below is the test result... :(




CPU-Z version 1.35.




Number of CPUs 1


Name AMD Athlon 64 3000+

Code Name Venice

Specification AMD Athlon 64 Processor 3000+

Family / Model / Stepping F F 0

Extended Family / Model F 2F

Brand ID 4

Package Socket 939

Core Stepping DH-E3

Technology 90 nm

Supported Instructions Sets MMX, Extended MMX, 3DNow!, Extended 3DNow!, SSE, SSE2, SSE3, x86-64

CPU Clock Speed 1809.3 MHz

Clock multiplier x 9.0

HTT Bus Frequency 201.0 MHz

L1 Data Cache 64 KBytes, 2-way set associative, 64 Bytes line size

L1 Instruction Cache 64 KBytes, 2-way set associative, 64 Bytes line size

L2 Cache 512 KBytes, 16-way set associative, 64 Bytes line size

L2 Speed 1809.3 MHz (Full)

L2 Location On Chip

L2 Data Prefetch Logic yes

L2 Bus Width 128 bits




Mainboard and chipset

Motherboard manufacturer ASUSTeK Computer INC.

Motherboard model A8N-E, 2.XX

BIOS vendor Phoenix Technologies, LTD

BIOS revision ASUS A8N-E ACPI BIOS Revision 1013

BIOS release date 04/07/2006

Chipset nVidia nForce4 rev. A3

Southbridge nVidia nForce4 MCP rev. A3

Sensor chip ITE IT8712


Graphic Interface PCI-Express

PCI-E Link Width x16

PCI-E Max Link Width x16






DRAM Size 1024 MBytes

DRAM Frequency 201.0 MHz


CAS# Latency 2.5 clocks

RAS# to CAS# 3 clocks

RAS# Precharge 3 clocks

Cycle Time (TRAS) 8 clocks

Bank Cycle Time (TRC) 11 clocks

DRAM Idle Timer 16 clocks

Command Rate 2T

# of memory modules 2

Module 0 Corsair DDR PC3200 - 512 MBytes

Module 1 Corsair DDR PC3200 - 512 MBytes





Windows version Microsoft Windows XP Professional Service Pack 2 (Build 2600)

DirectX version 9.0c

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They might work - but with your particular CPU you will have to lower your memory speed to 166MHz (DDR333 / PC2700) in order to run stably with four double-sided sticks. Neither the E3 nor the E4 stepping has as robust of a memory controller as the E6 stepping.


In addition, the newer VS512MB400 sticks may be single-sided, whereas the older sticks were double-sided. If this is the case, then the two sets may not work well together - in single- or dual-channel mode.

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