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Only SPD work for Twin2X2048-6400 C4


Frallo

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I run the XMS2 pair mentioned in the subject on my ASUS P5B Deluxe motherboard (latest BIOS 1101).

 

I can only use SPD.

 

When I understood the specifications of this memory module correctly, I should be able to run 4-4-4-12 timing and disable SPD in the BIOS.

 

As soon as I do this, Windows XP SP2 will not start.

 

Please advise.

 

thx

F.

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I have 2 RAM modules (a twin pair) that is 2x 1024 MB

Motherboard vendor is ASUS

Model is: P5 B Deluxe

 

I try to set the values for

CAS Latency: 4

RAS Precharge: 4

RAS Activate to Precharge: 4

Write Recovery Time: 4

TRFC: 12

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Please load setup defaults and then set these settings taken from the link in my signature:

Tested Settings XM2X-6400C4

Motherboard make and model: Asus P5WD2 or M2N32-SLI Premium/Deluxe

Each pair is tested and packaged together using the following settings:

AI Over Clock Tuner: Manual

CPU External Frequency: Manually set to 200MHz

DDR2 SDRAM Clock: Manually set to 800MHz

PCI Express Freq: Auto

PCI Freq: 33.33

Performance Mode: Standard

DRAM Timing Selectable: Manual

SDRAM CAS Latency: 4T

SDRAM RAS to CAS Delay (tRCD): 4T

SDRAM Row Precharge (tRP): 4T

SDRAM Active to Precharge Delay (tRAS): 12T

SDRAM Write Recovery Time: 5

Write to Precharge Delay: 15 (If it's Listed)

Command Rate: 2T

DDR2 SDRAM Voltage: 2.1

Advanced voltage control

CPU Vcore offset:_Disabled

DDR2 Termination: 0.5x

CPU to NB HT:____1.200V

NB to SB HT:_____AUTO

NB Core/PCI-E:___AUTO

SB Core/PCI-E:___AUTO

SB Standby core:_+1.500V

 

Output driver control

CKE:______AUTO

CS/ODT:__1.00X

ADD/CMD:_1.00X

MEMCLK:__1.00X

DDR2 SDRAM Voltage: 1.9

Chipset Core Voltage: Auto

All other settings are motherboard defaults.

Maximum DDR2 recommended VDIMM: 2.1 Volts

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