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Memory Issue


netghost

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I have a Asus P5WD2 with Corsair XMS 2 CM2X512A-6400 1GB

I can boot my machine up with one stick but as soon as I put the

second stick I get Overclocking failure or Overvoltage Failure. The

Bios is set to defaults I havn't changed anything how can I get both

stick to work.

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Welcome to the forums, netghost!

 

Please set your BIOS as is listed in XMS Qualification and Testing.

 

Testing parameters for Twinx/XMS2-6400:

 

Twin2X1024A-6000 Data Sheet

 

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: 5T

SDRAM RAS to CAS Delay (tRCD): 5T

SDRAM Row Precharge (tRP): 5T

SDRAM Active to Precharge Delay (tRAS): 12T

SDRAM Write Recovery Time: 5

DDR2 SDRAM Voltage: 1.9

Chipset Core Voltage: Auto

All other settings are motherboard defaults.

Maximum DDR2 recommended VDIMM: 2.1 Volts

 

Then check the memory with Memtest86+ and see if it pops up errors. You might also try the modules one at a time...

 

HOWEVER! I must stress that 400 Watts on your PSU seems somewhat weak for your system and very well may be the cause of any memory/software/boot errors experienced! If at all possible, I'd try a more powerful ATX 2.0 (24-pin + 4-pin power) power supply.

 

If your current PSU is not an ATX 2.0 power supply, then it is almost definately the culprit.

 

PLUR

CK

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I am also having issues when trying to install windows when it

gets ready to show me the EULA it gives me a BSOD I know its

not the disk because i did a previous install the night before on another machine

and the BSOD says something about my Disk drives don't have the full error message. But would a 400w PSU cause something like that for windows

to get ready to install and BSOD on you , Just ordered a 600W PSU would

that be enough. BTW both Mem Modules do work I tried one at a time.

 

Thanks

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I would personally use more than 400 Watts for that setup. What make/model is the 600 Watt version?

 

If all else fails, you can probably return it, but like I said, 400 looks to be a little on the weak side for your system.

 

PLUR

CK

 

COOLMAX "EZ Wire" CU-600T

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I finally got it to boot and the issue is that the ASUS P5WD2 Mobo has 2

Red IDE Slots but they do not support ATAPI so you have to Install your

Optical Drive on the Blue Slot. My only real issue now is getting my second

Module to to work as a dual channel 800MHZ

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From reading the manual on the P5WD2, it appears that the red slots are controlled by a separate RAID chip that also supports JBOD setups... I think the issue is that you'd have to install a 3rd party driver via bootable floppy before you could boot a CD from that chip, but just swapping the cables works well enough!

 

Still, see if the extra PSU doesn't help the memory situation.

 

PLUR

CK

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From reading the manual on the P5WD2, it appears that the red slots are controlled by a separate RAID chip that also supports JBOD setups... I think the issue is that you'd have to install a 3rd party driver via bootable floppy before you could boot a CD from that chip, but just swapping the cables works well enough!

 

Still, see if the extra PSU doesn't help the memory situation.

 

PLUR

CK

 

So what you are saying is once I get the Drivers installed on for the Red Slots on my Mobo I can connect my DVD-Burners. I am getting the new PSU tomorrow so I am going to see if that helps the memory issue. But shouldn't the memory work by defualt with the setting untouch in the bios.

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The BIOS doesn't always set the correct values and, on many occasions, arbitrarily sets values that are incorrect for many modules in an effort to boost performance.

 

As for the red connectors, yes, when you fully install the mainboard drivers and such, you should be able to use any device on them.

 

PLUR

CK

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I changed my settings to what they need to be for my ASUS P5WD2 Prem. Mobo

using XMS2 1024-6400 and I still get Overclocking Failed or Overvoltage Failed.

the only way I can boot into windows if I press F2 and it works that way but

I would like that message to go away so that I know my memory is fine.

 

BTW I have a 600 Watt PSU installed in it now.

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This is the setting in my bios:BTW each module works fine by themselves in the slots they need to be.

 

AI Overclocking: Manual

CPU Frequency: DDR2-800MHZ

 

Performance Mode: Standard

PCI Express Frequency: Auto

PCI Clock Sync Mode: 33.33Mhz

 

Memory Voltage: 2.10V

CPU VCore Voltage: 1.3750V

FSB Term Voltage: Auto

MCH Chipset Voltage: Auto

ICH Chipset Voltage: Auto

 

Configure DRAM Timing by SPD: Disabled

DRAM CAS# Latency 5 Clocks

DRAM RAS# Precharge 5 Clocks

DRAM RAS# to CAS # Delay 5 Clocks

DRAM Ras# Activate to Precharge 12 Clocks

DRAM Write Recovery Time 5 Clocks

DRAM ECC MODE: Disabled

Hyper Path 3: Auto

 

These are my setting in my mobo maybe that will help out a bit.

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I have a question would it be possible to run my dual memory

into both single mode and just do that cause i notice when i put the

memory both into 6400 mode it won't boot it stays stuck initializing usb controller. but if i set it to 5300 it goes past that and then it gives me that

overlclocking overvoltage failure , and i can then but into windows with no

problem. and does recognize them as a pair of 512mb

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