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  #1  
Old 09-30-2004, 06:22 PM
bwells46 bwells46 is offline
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Default Problem with MSI K8N Neo2 Platinum and Corsair TwinX1024-3200XL

I'm having trouble getting the memory to run at its rated speed of 2-2-2-5. When I try to run it at this speed, I get errors in memtest86 on one of the DIMMs.

However, the memory runs stable at 2-3-2-11-1T. This would be ok except that I paid for 2-2-2-5. I'm running it at 2.75V. Increasing to 2.8V did not help with stability.

Any ideas of what I can try?

My system specs are:

A64 3500+
MSI K8N Neo2 Platinum
Corsair TwinX1024-3200XL
Gainward GF 6800 GT
SB Audigy 2 ZS
WD 74GB Raptor
WD 200GB SATA drive
LiteOn DVD-ROM
Pioneer DVD+/-RW
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  #2  
Old 09-30-2004, 06:43 PM
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have you tried it at 2-2-2-5 by itself in multiple slots so as to make sure it isn't a slot that has a problem?
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  #3  
Old 09-30-2004, 06:51 PM
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Also is this socket 939 or 754?
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Old 09-30-2004, 07:02 PM
bwells46 bwells46 is offline
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The K8N Neo2 Platinum is a socket 939 motherboard.

Interestingly enough, I have tried. One of the DIMMs generates errors when run at 2-2-2-5 so I bought another TwinX pack to try it. In that pack, BOTH of the DIMMs generated errors at 2-2-2-5. Net, I have one DIMM out of four that runs by itself at 2-2-2-5. I'd be interested to know what the defect rate at Corsair is for the 3200XL memory.

I can run them at dual channel at 2-3-2-11 with no errors but I paid (twice!) for 2-2-2-5. Any other setting that I might be able to try? I've tried 2.8V and it did not matter. Is it really possible that I have 75% defective memory?
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Old 09-30-2004, 07:45 PM
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That would suggest maybe the CPU you have just does not like to run at 2-2-2-5. In addition, please check with MSI and see if they have new bios for your MB. And I would try the memory in slots 3-4 and see if the results change! And I would suggest you set the Dim Voltage to 2.8 Volts and set the AGP Voltage to 1.6 Volts!
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Old 09-30-2004, 07:52 PM
bwells46 bwells46 is offline
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Why would it suggest the CPU? One of the DIMMs will run for 12+ hours at 2-2-2-5. The other three can't make it through a single pass. That suggests the RAM to me. I've tried slots 3 & 4 and they give identical results.

Also, what does AGP voltage have to do with running memtest86?
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Old 09-30-2004, 08:17 PM
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Long story short, an undervolted video card can mess with the whole bus.
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  #8  
Old 09-30-2004, 10:15 PM
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Won't increasing the AGP voltage potentially damage my 6800GT and void my warranty?

Do you know of any programs I can use to tell exactly what the AGP voltage is so I can see if I even need to up the voltage? I don't have any problems with 3D games or stability when the RAM is set at 2-3-2-11. Wouldn't this demonstrated stability rule out AGP voltage issues?

I'm leaning more and more toward trying Crucial's Ballistix memory or OCZ if I can't get this fixed.
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Old 09-30-2004, 10:51 PM
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Depends on the warranty of the card itself. He's not suggesting voiding the card's warranty. IIRC, most cards are warrantied up to 1.65 at least, but I may be wrong. As for the AGP voltage, it should tell you in the BIOS. If not, download MotherBoard Monitor and assuming your BIOS gives out the AGP voltage info, MBM will tell you what it currently is at.
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  #10  
Old 10-02-2004, 02:50 PM
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Ok, here's what I've tried and the result it produced.

RAM is at 2-2-2-10-1T for all tests

CPU V AGP V RAM V Memtest86 Result
1.5 1.5 2.8 Fail in 1st pass
1.5 1.5 2.85 Fail in 2nd pass
1.55 1.5 2.8 Fail in 1st pass
1.5 1.55 2.8 Fail in 1st pass
1.55 1.55 2.8 Fail in 3rd pass
1.55 1.55 2.85 Fail in 1st pas
1.55 1.60 2.8 Fail in 1st pass
1.55 1.60 2.85 Fail in 2nd pass

All I can conclude is that this TwinX1024-3200XL pack is not capable of running at 2-2-2-10. I didn't bother trying 2-2-2-5 since it fails with 2-2-2-10. Any other ideas of something I can try? Corsair RAM Guy?

More trials:

Memory Setting CPU V AGP V RAM V Aggressive Timing Memtest86 Result (Pass/Fail) Test # # of Errors
2-2-2-10-1T 1.50 1.50 2.75 Enabled Fail 5.00 6.00
2-2-2-10-1T 1.50 1.50 2.80 Enabled Fail 5.00 8.00
2-2-2-10-1T 1.50 1.50 2.85 Enabled Fail 5.00 14.00
2-2-2-10-1T 1.55 1.50 2.75 Enabled Fail 5.00 6.00
2-2-2-10-1T 1.55 1.50 2.80 Enabled Fail 5.00 10.00
2-2-2-10-1T 1.55 1.50 2.85 Enabled Fail 5.00 10.00
2-2-2-10-1T 1.50 1.55 2.75 Enabled Fail 5.00 14.00
2-2-2-10-1T 1.50 1.55 2.80 Enabled Fail 5.00 12.00
2-2-2-10-1T 1.50 1.55 2.85 Enabled Fail 5.00 6.00
2-2-2-10-1T 1.55 1.55 2.75 Enabled Fail 5.00 4.00
2-2-2-10-1T 1.55 1.55 2.80 Enabled Fail 5.00 12.00
2-2-2-10-1T 1.55 1.55 2.85 Enabled Fail 5.00 2.00
2-2-2-10-1T 1.50 1.60 2.75 Enabled Fail 5.00 18.00
2-2-2-10-1T 1.50 1.60 2.80 Enabled Fail 5.00 4.00
2-2-2-10-1T 1.50 1.60 2.85 Enabled Fail 5.00 4.00
2-2-2-10-1T 1.55 1.60 2.75 Enabled Fail 5.00 4.00
2-2-2-10-1T 1.55 1.60 2.80 Enabled Fail 5.00 10.00
2-2-2-10-1T 1.55 1.60 2.85 Enabled Fail 5.00 6.00

Last edited by bwells46; 10-02-2004 at 05:58 PM. Reason: Forgot to add one of the trials and the timing
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  #11  
Old 10-02-2004, 09:53 PM
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It is possible that it can run at 2-2-2-5 and not 2-2-2-10. I'd try 2-2-2-5 once to be safe, although I'd guess it's the memory.
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  #12  
Old 10-03-2004, 09:09 AM
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Yeah, 2-2-2-5 failed as well. Do you know how I go about getting my memory RMAed to Corsair and how long it typically takes?

Thanks!
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  #13  
Old 10-03-2004, 10:45 AM
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Sometime monday Ram Guy will see this thread and continue the RMA process.
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  #14  
Old 10-04-2004, 01:51 PM
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Sorry about that, yes please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it!
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  #15  
Old 10-04-2004, 02:36 PM
bwells46 bwells46 is offline
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How long does the RMA process typically take from the time you receive the memory?
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