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I got the RAM need to pick a mobo


toleary

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I didn't see the link in the previous reply.

the memory is not the same as was pointed out.

i have 2X512

maybe the compatibility is the same and i can use this info to pick out a mobo.

thankyou and sorry for my erroneous response

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This attached data sheet helps me understand the part numbering, but I just want to be positive. I found it by googling

 

My TWIN2X1024-6400 set are 2 pcs.CM2X512A-6400

Neither of these part numbers are on that pull down list.

 

And where did the number that the kind and most helpful forum member used to find that list of compatible boards come from?

 

I confess I am not an expert, so I want to be careful and check every detail.

All informative feedback is most appreciated.

 

BTW my system POST went fine today. yesterday I had to reboot once.

TWIN2X1024A-6400.pdf

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  • 1 month later...

My system continues to crash during POST on the RAM line.

It happens about 20% of my morning startups.

 

I want to remove the current RAM (TWIN 2X4096-6400C 5DHXG) which I very recently purchased and installed

with the RAM I had in there previously, (about 2 1/2 years and never had a problem with but I thought I'd like to upgrade (CM2X512A-6400)

 

I wanted to confirm what my settings should be for the CM2X512A-6400.

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You have an old 200MHz (Quad Pumped = 800Mhz) FSB Processor and you can not run the DRAM very high with this CPU.

 

Try these settings:

 

Configure System Frequency/Voltage

  • AI Overclocking = Manual

  • CPU Frequency = 200

  • DRAM Frequency = 533MHz

  • Performance Mode = Auto

  • PCI Express Frequency = 100

  • PCI Clock Synchronization Mode = 33.33

 

  • Memory Voltage = 1.9v

  • CPU Core Voltage = Auto

  • FSB Termination Voltage = Auto

  • MCH Chipset Voltage = 1.55v

  • ICH Chipset Voltage = Auto

Advanced Chipset Settings

  • Configure DRAM by SPD = Disabled

  • DRAM CAS# Latency = 5

  • DRAM RAS# Prechardge = 5

  • DRAM RAs# to CAS# Delay = 5

  • DRAM RAS# Activate to Precharge: 15

  • DRAM Write recovery Time = Auto

 

Leave all else on AUTO settings. Download Memtest from http://www.memtest.org and write the image to a CD. Boot to the CD and allow a few passes. Please post screenshots of CPU-z's CPU, Memory and SPD tabs.

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thanks for the post.

 

I ran the memtest and no faults occurred

maybe its the PSU which was recently installed.

 

the screenshots are right now, I didn't know if you wanted now or after i implemented the settings you recommended.

cpu-z-cpu-11-07-08.jpg.95197a879ec5590b1885e5446497aba4.jpg

cpu-z-SPD-11-07-08.jpg.d665a074a2a1dbdcaf4ae32847767106.jpg

cpu-z-memory-11-07-08.jpg.7cafade2a6410c29a225464b59e8304d.jpg

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Right.

Thanks for that feedback.

I am under pressure and do not have time for pit stops.

Jacking up my PC on the lift and pulling it apart is not easy.

So there will be a time lapse before I re-post. after i swap out the RAM again back to my old RAM

At this point, I am inclined to send it back for a refund and take a hit for restocking. What a drag.

Newegg might tell me no anyway.

are we having fun yet?

(not me)

but

Thanks again!

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