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Known issues with P5N32-E SLI and Corsair CM2X1024-6400C4 (2x1GB)?

Oceansize_72

By Oceansize_72
in Memory

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Oceansize_72

Oceansize_72

Posted
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I built a new system on Monday and have been experiencing random BSOD's. Troubleshooting constantly. I have eliminated heat as a possibility. All MoBo, BIOS, Monitor, gfx card, sound card, & mouse drivers up-to-date from the internet. BSOD's happen even with all non-essential hardware removed. I even got a hard crash (not a BSOD) installing the OS on a completely virgin HD, so I am fairly confident this is not a peripheral or driver issue. I am left with memory/mobo as my culprit.

 

I am using an Asus P5N32-E SLI with 2 sticks of CM2X1024-6400C4 for a total of 2GB.

 

Kind of a newbie and not too familiar with how to tweak the BIOS. PC Probe showed my 1.2VHT running too high at 1.5V, so I set that manually to 1.2V in the power section of the BIOS (it had been set to Auto), but it did not help (although PC probe no longer gives me the error...that's nice).

 

One peculiar thing: I notice that the memory timings for my brand of sticks says they should run at 4-4-4-12, yet when all relevant BIOS settings are set to Auto, my POST says the memory is at 5-5-5-18.??? So I set it manually to 4-4-4-12 and it got even more wonky than normal. System runs most stable with BIOS settings at Auto, but that is still not very stable. With the exception of the 1.2VHT tweak, every other tweak I make seems to make the problem worse. Even upping my memory voltage to 2.1V.

 

I have run the system with just one stick at a time, swapping sticks, and although it gets a slight bit more stable, I still inevitably get killed by a BSOD.

 

As far as I can tell from this site and Asus' QVL list this memory should work, although your site refers to TWINx1024 as opposed to CM2x1024. Is this a critical difference? I am beginning to believe either the memory or the MoBo is genuinely faulty, but since there is so much in the BIOS that I am unfamiliar with, I figured I better give it one last shot to find the answers here.

 

I am grateful for any assistance or advice.

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Oceansize_72

Oceansize_72

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OK, well I have the system running completely stable now, but there are some items that still cause me concern.

 

I was able to gain stability by installing the 2 sticks side-by-side rather than every-other. The last system I built was about five years ago and back then you ALWAYS installed RAM in every-other slot, not side-by-side. Have times changed and I didn't hear about it? I got the idea by reading some other posts here, where people got different results by going side-by-side. Are there performance differences or anything else I should know about when putting 2 sticks side-by-side? Sorry for the newb question.

 

Anyway, what makes me nervous is the fact that, if this was the only culprit, then why did I have BSOD's when I only had one stick installed?

 

And why do my timings that are reported in POST still say 5-5-5-18 when the specs on the sticks say they should run at 4-4-4-12?

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Wired

Wired

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side by side, or every other stick - this orientation can change between motherboards depending on how they were designed. don't bother to compare one motherboard to another - just read the manual and see which orientation is single channel, and which is dual channel.

 

Note: There is no such thing as Dual Channel memory, as this is a property of the memory controller in how it handles memory. This is why you can place memory in different slot configurations on a motherboard and it will register as single or dual channel.

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shellman0911

shellman0911

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I pretty much have the same system as Oceansize_72 with the exception of the slower Core 2 as well as a slower video card. I just built a new system on Dec 1st with Asus' P5N32-E SLI with TWIN2X2048-6400C4 ram.

 

The first time I put the two sticks into the motherboard, it booted perfectly fine. Once windows was installed and running, I went into the bios to enable the EPP function to make the sticks work at their advertised timings. After the restart, the motherboard had trouble booting and I noticed that in the bios, it showed that the installed ram was no longer SLI and EPP compatible. It's as if the ram was no longer recognized as SLI certified. The selection box in the bios to manipulate the SLI settings now says: "Not Detected" and cannot be accessed.

 

Once I was able to forge my way back into windows(at the slower settings i previously had before all this took place), I ran memory tests and received many frequent errors. I have now removed everything from the system minus the core components and am still having the same issues. I have also verified that both the bios and all drivers are up-to-date.

 

In addition, I have put both sticks into another EPP certified board (the Asus P5N32-SLI Premium/WiFi-AP with the nvidia 590 chipset) and came up with the same results.

 

However, when running these sticks in my old system (MSI Intel P915 chipset with an Intel 630 processor) the memory seems to work fine at 500mhz(total). Is there a known issue with the new nvidia chipset or perhaps do i just have a faulty set of sticks? Any help would be much appreciated.

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-Apples-

-Apples-

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Yesterday i set up my system with the same memory. Windows installed fine, but after installing a few games and playing them it started to reboot about every 15 minutes, Then it totally crashed. It would not boot up at all. I then tried to reinstall windows but it would not let me repair,format etc. I kept getting a blue screen with errors. I then removed 1 stick of my memory and it let me install and has been running for 8 hours str8t with no crashes. My bios settings are defult. Why is this memory causing so many problems with this board?

 

Please let me know what i am supposed to do!

 

p5n32-e SLI

e6600 core 2 duo

CM2X1024-6400 5-5-5-12 (2 gigs)

PCI-E 7950 gt 512mb

NZXT pp500 PowerSupply

250 gig SATA hd 7200rpm

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itskrom

itskrom

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Can't install ram without falling over, I have to have them side by side! whats going on? why is this happening? anyone know why this can't work in DDR2 (everyother slot)

 

Also can't have sli and a xfi, they share irq and fall over, this is a nightmare, does anyone know whats going on?

 

 

they won't let me type in my make of ram, doh.

 

Asus p5n32-e

OCZ Dual Channel 2048MB PC6400 DDR2

e6700 and x6800 (both fall over in DDR2)

8800 gtx (x2) and other machine 8800 gts

ram 5.5.5.18 bios on auto ( tried 5.5.5.12) writen on ram

X fi

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RAM GUY

RAM GUY

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Please make sure that you have the latest bios and then load setup defaults and set the Dim Voltage to 2.1 volts and then set the timings manually to the tested settings for the specific module you have, and then test the module/modules one at a time with http://www.memtest.org! If you still get errors, please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! However, if you get errors with both modules that would suggest some other problem and I would test them in another system or MB to be sure. In addition, with this MB you have to disable legacy USB in the bios when running any memory test.
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granted

granted

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Hi

 

I am in interested in getting a solution tof this problem. I have the P5N32 -E SLI mobo and the Cosair 2X 1024 6400 C4 memory and am having the exact same symptoms and problems.

 

Iadded this memory to my system because it was recommended by Corsair as being compatible with this mobo. Apparently this combination is not working

 

See my thread in this other forum:

 

http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=1400080#1400080

 

I have the latest bios update for this mobo and have set the mem voltage to 2.1. However the mobo bios keeps setting it back to auto???

 

Please help us!

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granted

granted

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Hi Ram Guy

 

no, I have not set the bios to SLI ready.

How do I do this?

and, how do I do this if I have no video to see the bios

I do not plan to use SLI.

I chose this mobo because I want to overclock the CPU from 2.4 to 3.2 or 3.4

 

As I described above, I do have video output for the "first boot" after I make some changes. Then on the "second boot" the video goes away. Please suggest ways to do this.

 

Would it help to get a stick of 'stable memory' and use that to get video working and then change the bios settings?? What memory would you suggest? Something relatively inexpensive that I can buy locally. I probably would not use it when I get the bios fixed?

 

I have updated the mobo bios to 0405

 

Thanks

 

Grant

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RAM GUY

RAM GUY

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Grant

Please reset the bios with just one module installed and then go to bios setup and load setup defaults and then enable SLI Ready Memory in your bios and then exit saving changes and see if the system will re-post.

Please test the modules one at a time and lets make sure one is not failing.

Also you will have to be running a 1066 FSB CPU to run these modules at 800 FSB other wise you might have to set the memory freqiency at 667 MHz!

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granted

granted

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Hi Ram Guy

 

Thanks.

I have already tried booting with just one module.

and tried each module separately. that was the configuration that I had when I had the problems described above.

 

I will try your suggestion.

My CPU is an Intell E6600

 

Grant

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RAM GUY

RAM GUY

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If you get the same issue with either module one up that would suggest some other problem and I would try another PSU first if you can barrow one. But normally that would be a PSU or MB Problem with what you have described.
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granted

granted

Posted
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Hi Mortuary

 

Thanks for this info.

Very helpful.

My symptoms are very similar to yours.

 

So the Ram we have is not 'bad' it is just 'incompatible with our mobos'.

Is that rght?

 

The RamGuy wants me to try turning on SLI memory.

Did you try that?

 

If that does not work, I would like to RMA my Corsair memory.

However, I already sent in my $40 rebate form.

Can I still get an RMA?

 

Also, Is there a valid list of memory that actually works with the ASUS P5N32-E

sli MOBO?

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granted

granted

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Hi Mortuary and RamGuy

 

I tried setting the BIOS to SLI enable.

I cleared the CMOS and booted.

 

System would not boot.

CPU Fan Started but the case fans did not start for 30 Secs

(same symptoms as Mortuary)

 

No Video

Same problems as before.

 

So, now what do I do with my Corsair memory???

Can I still get an RMA even though I sent in the Rebate form?

 

What is memory that will be compatible?

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RAM GUY

RAM GUY

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Yes I would suggest replacing both modules.

But there was another user saying he had the same issue so I would suggest you both get them both replaced and go from there if ytou have the same issue there is some other problem.

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