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CM2X1024-6400 Errors Found


EvanC

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I own two sticks of CM2X1024-6400. I set everything as its advertised; 5-5-5-12 timings, 1.9v, DDR2-800MHz, and MemTest 3.4 by HCI Design reports errors just after a few minutes of testing! I find that if I set it to arround 750MHz the errors go away (for at least 45 minutes of testing.)

 

I've got these sticks paired with a p5w dh deluxe and an e6400. Am I doing something wrong? The sticks show default settings of 5-5-5-18 but even at those timings I get errors.

 

Should I increase my MCH voltage? Does that have anything to do with it?

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Ok, memtest.org is memtest86+ and that memtest found nothing wrong with it after running for 3 hours. Generally speaking, how long should these tests take? And why exactly is this other windows based test finding errors?

 

I'll try 2.1V and report back...

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well 2.1V showed up as red in my bios settings meaning way too high. At 1.9 volts it does pass the memtest.org application. I'm wondering if this is due to the fact that the windows based application is out of date or something...

 

What is DRAM Write Recovery Time and what should it be set to for timings of 5-5-5-12?

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Any setting not listed in XMS Qualification and Testing! should be set to Bios default or Auto. Max supported voltage is 2.1 Volts for all of our DDR2 modules. If its still not stable I would try and set it to 2.1 Volts and I would check with the MB maker to make sure that you have the latest bios version installed.
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well what I'm saying is memtest86+ detects NO errors while the HCI Design memtest version that runs in windows picks up errors.

 

Which one should I trust the most?

 

And one more thing: I didn't find my ram on your data sheet list... What is my ram's Write Recovery Time?

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OK well I can only assume I have bad RAM here.... I can run memtest86+ but when I try to run orthos beta (dual prime95) I get errors, even with everything at stock. The ram even has relaxed timings of 5-5-5-18!. Setting it to 2.1v gave me BSOD btw...

 

So would this constitute as technical support or what? What do I need to RMA these things and get a pair that will work at it's advertised specifications?

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Hiya,

If you can pass memtest without errors then your ram is fine.

 

If you get errors running a program under windows then there could be many reasons, not least of all having installed windows when your memory was causing errors and now having a dodgy operating system.

 

I dont think you will get an RMA for parts that pass memtest as this test was designed to take the operating system out of the equation when testing if memory was producing errors.

 

Maybe try a reinstall now youve solved your ram problem?

 

Rob

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I'm going to run memtest86+ all night tonight... I'm going to try and let it to 50 passes. I know the ram is bad because I get errors when I run the ram at 800MHz. Its just under spec is all. Currently the system is stable at DDR2-600.

 

When I set the voltage to 2.1 the system became unstable. I shouldn't have to change anything that isn't on the spec sheet. I bought the ram for DDR2-800 not 600 and if it says it can do that at 1.9v then it should.

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Well I'll go ahead and RMA through newegg first. I had lost the packaging so I thought I wouldn't be able to RMA it but it turns out they are fine with taking them in a couple of static bags in a small box... If they send me back some ram that doesn't work propperly at DDR2-800 I'll go ahead and RMA through corsair... Thanks for your help
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Yea, so I returned some corsair that was supposed to run at 1.9v 5-5-5-12 DDR2-800. Instead it was only stable at 5-6-6-18 2.0v DDR2-600. Complete garbage.

 

"RAM GUY" told me never to trust windows based hardware tests.. In fact, here’s a direct quote:

If it runs in Windows I would not trust it no matter what it is!

Any application will not have direct access to the hardware in Windows!

Please as I said before use
to test the memory.

 

Now I have some different brand name ram, cheaper, better specs. I ran HCI Design's memtest for 4 hours straight with ZERO ERRORS! (Windows based test)

 

So lets recap here:

 

"RAM GUY" says if it runs in windows he doesn't trust it... For instance, he doesn't trust HCI Design's memtest, or prime95, or superPi, or 3dmark05, anything that any normal over clocker uses for stability testing. Instead he trusts an old stupid DOS program that does in 4 hours what the windows based tests did in 10 minutes... I'd say its time to find new technical support.

 

BTW RAM GUY, don't tell people to run 2.1v when their ram is rated at 1.9v. 2.1v gave me so many blue screens of death I felt like I was running Windows 95.

 

RAM GUY has ran me away from corsair forever with his level of intelligence

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