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Asus P5WD2 Premium--Memroy?


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I am looking to build a system with the following parts.


Asus P5WD2 Premium

Intel 820 (Dual core 2.8 ghz)

ATI All in Wonder x800XL

2 hard drives running raid 1


Want to get 1 GB of ram.


Should I get the TWIN2X1024A-5400UL / DDR2-675 (XM2S-5400UL) / 3-3-2-8 or the Corsair TWIN2X1024-8000UL 1GB Kit DDR2-1000 XMS2-8000 Xtreme Performance Memory?


I want this system to be extremely stable so overclocking should only be at a minimum..... Both 1gb kits are the same price.....



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Should these settings woth with the p5wd2 board? It appears that the testing was done with a p5ad2. Just wanted to make sure. Thanks for all the help.



Testing parameters for Twinx/XMS2-5400UL:

Twin2x1024-5400UL Data Sheet

Testing parameters for CM2X512A-5400UL:

Twin2x1024-5400UL Data Sheet


Motherboard make and model: Asus P5AD2-E Premium

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

AI Over Clock Tuner: Manual

CPU External Frequency: Manually set to 226MHz

DDR2 SDRAM Clock: Manually set to 678MHz

PCI Express Freq: Auto

PCI Freq: 33.33

Performance Mode: Standard

DRAM Timing Selectable: Manual

SDRAM CAS Latency: 3T

SDRAM RAS to CAS Delay (tRCD): 3T (Revised 6/27/2005)

SDRAM Row Precharge (tRP): 2T

SDRAM Active to Precharge Delay (tRAS): 8T

SDRAM Write Recovery Time: 4

DDR2 SDRAM Voltage: 2.1

Chipset Core Voltage: 1.7 Volts

All other settings are motherboard defaults.

Maximum DDR2 recommended VDIMM: 2.1 Volts

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  • 8 months later...

I also have the Asus P5WD2 Premium and am runing Corsair VS1GBKIT667D2 1GB Kit DDR2-667 PC2-5300 Value Select on it. Here is my system build:


P5WD2 Premium

Pentium D830-Zalman CNPS9500 LED CPU Cooler

Powercolor Radeon X800GT

Corsair VS1GBKIT667D2 1GB Kit DDR2-667 2X512

Maxtor DiamondMax 250GB SerialATA 7200rpm w/16m Buffer (Media storage)



Lian-Li PC6070 Plus Case-Stock fans

Antec NeoPower 480

Maxtor DiamondMax 10 6V300F0 300GB Serial ATA (3.0Gb/s) 7200RPM Hard Drive w/16MB Buffer (OS XP Media Center))

Samsung 215tw 21" widescreen monitor, Win-TV PVR500


I would like to add more memory to it. I had no clue what I was doing when I built this system and I used the least expensive Ram at the time. I would like to increase the amount of ram and I don't know if I should get another gig of the same or should I get 2 gigs of a different type? If I get a better ram do I need to remove the old? What is a good amount of Ram to run with this mobo? I mostly use my PC for multimedia and surfing. I record alot of TV and I stream video to a media center extender. I want good stable performace without spending a fortune.


Thanks for your help.

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What is the difference between:


Corsair TWIN2X2048-6400 2GB Kit DDR2-800 XMS2-6400 Xtreme Performance Memory




Corsair TWIN2X2048-6400C4 2GB Kit DDR2-800 XMS2-6400 Xtreme Performance Memory Retail




Corsair TWIN2X2048-5400C4 2GB DDR2-675 XMS2-5400 Xtreme Performance Memory w/Black Heat Spreader


I have narrowed my chice down to one of these three.the 6400 and the 5400c4 are about the same price. Any more input would be appreciated. Thanks!!

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One more question. What is the difference these different ram?

Corsair Twin 2x2048:







If I understand some of these have features that will only work with motherboards that have NVIDIA. EPP SPD’s . I don't know what this is and I do not know if the P5WD2 Premium even supports this. Hopefully you can clear this up for me. It will probably help me eliminate a few choices.

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  • Corsair Employees

One more question. What is the difference these different ram?

Corsair Twin 2x2048:

6400c4 = Cass 4-4-4-12

6400c (Not our part Number)

6400c3 = Cas 3-4-3-9



XM2S 6400 and 6400Pro are the same module just Pro has activity LED's aand set to Cas 5-5-5-15

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