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memtest86 errors in Dual Channel only


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#1 plantj

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Posted 01 December 2005 - 07:32 AM

I have been using a DFI Lanpart NF4 Ultra-D for a few months now. I have really enjoyed the features of this motherboard but recently have been having crashing problems with Windows XP. It has gotten to the point where windows will not even boot 1 out of 5 times.

I found that my RAM was giving thousands of errors when running memtest86 test 5. I decided to test the RAM one stick at a time to try to isolate the problem. When running the RAM in single channel mode I get no errors at all in memtest86. Once I run the sticks together in dual channel mode the errors come back. I've tried several different BIOS versions and RAM placements orange and yellow slots. This began on the stock BIOS which was 310 i think, then i tried the 623 BIOS, and currently running the 704-2bta BIOS.

Thinking I possibly had a problem with RAM I swapped it out with some older Mushkin Value RAM 2x512MB. I found the same problems with memtest when using this ram in dual channel mode.

One other thing that recently started happening is that when using nvidia Ntune to review system information (I don't use ntune to make any changes), I found that it is showing a 3rd stick of ram when i'm only running two sticks. It has the module name as a row of gargbage characters. This "ghost" RAM module now shows up even if I have only one stick of RAM in the machine, with both the OCZ and Mushkin RAM. This garbage module problem has shown up in two completely clean installs of Windows XP.

I really have been happy with the DFI motherboard up to this point, I'm hoping that I won't have to buy another board. I use this motherboard for work as well as gaming, stability is pretty important. I sent an email to DFI support but wanted to also see what you guys thought.

Thanks,
Jd

#2 Sharp

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Posted 01 December 2005 - 07:42 AM

Hello,

The other 3rd memory might be the boards 640KB memory, ignore this error.

After any BIOS flash you should clear the CMOS for a few minutes, 10 is a good amount of time.

# Use 1 stick and flash to bios 623-3
# Use the orange slots
# Clear the CMOS again for 10mins
# Power the PC
# Set the memory voltage to 2.7v
# Disable CPC
# Save and exit

What happens?

Make sure that all 4 power connectors are plugged into the board
# 24pin ATX connector.
# 4pin +12v P4 connector, near the ATX connector.
# Floppy power connector, under the CPU socket.
# Hard drive power connector, on top the chipset fan.

http://www.dfi-stree...ntid=2944&stc=1


http://www.dfi-stree...ntid=2945&stc=1


http://www.dfi-stree...ntid=2946&stc=1

Plug your GFX card in the PCIe slot
# Make sure it is inserted correctly into the slot.
# Connect any power cables to it if one is required.

Clear your CMOS for 10 minutes
# Remove the power cord from the back of the power supply.
# Move the CMOS jumper to the clear position and leave it there for 10mins.
# Make sure you move it back to the save position after.

http://www.dfi-stree...ntid=2947&stc=1

Insert the memory into the Orange slots

http://www.dfi-stree...ntid=2948&stc=1

Power your PC and enter the BIOS
# Change the following,

GENIE BIOS Setting
>DRAM Configuration..................Press Enter = New Menu
FSB BUS Frequency....................200
LDT/FSB Frequency Ratio..............X 5.0
LDT BUS Transfer Width...............16 16
CPU/FSB Frequency Ratio..............AUTO
PCI eXpress Frequency................100Mhz
K8 Cool 'n' Quiet Support............Disable
Cool 'n' Quiet MAX FID...............AUTO
CPU VID StartUp Value................StartUp

CPU VID Control......................1.4v
CPU VID Special Control..............104%
LDT Voltage Control..................1.20 V
Chip Set Voltage Control.............1.50 V
DRAM Voltage Control.................2.70 V

Run MemTest86+.......................Enabled, disable later

GENIE BIOS Setting >DRAM Configuration
DRAM Frequency Set (MHZ).............200 (DRAM/FSB:1/01)
Command per clock (CPC)..............Disabled
Cas latency (tCL)....................2
RAS to CAS delay (tRCD)..............3
Min RAS active time (tRAS)...........5
Row precharge time (tRP).............2
Row cycle time (tRC).................AUTO
Row refresh cycle time(tRFC).........AUTO
Row to Row delay (tRRD)..............AUTO
Write recovery time (tWR)............AUTO
Write to read delay (tWTR)...........AUTO
Read to write delay (tRWT)...........AUTO
Refresh period (tREF)................AUTO
Write CAS latency (tWCL).............AUTO
DRAM Bank Interleave.................Enabled

DQS Skew Control.....................AUTO
DQS Skew Value.......................0
DRAM Drive Strength..................AUTO
DRAM Data Drive Strength.............AUTO
Max Async Latency....................6ns
Dram Response........................AUTO/Normal
Read Preamble Time...................5ns
Idle Cycle Limit.....................AUTO
Dynamic Counter......................AUTO
R/W Queue Bypass.....................AUTO
Bypass Max...........................AUTO
32 Byte Granularity..................AUTO


# Change your boot order
- 1st = Floppy (if you have one)
- 2nd = CD rom
- 3rd = HDD
# Save & Exit
MSI P35-Neo2-FR BIOS v1.9
Intel C2D E4500 250x11 2.75Ghz + Scythe Ninja
G.skill PQ series 2x2GB PC2-8000 @1000Mhz 5-5-5-15
Corsair TX 650W PSU
Seagate Barracuda 9 80Gb 8MB SATAII x2
Samsung 160GB external USB Vantec Nexstar
POV nvidia 6800GS, SB Audigy 4
Thermaltake Armour JR black
7, Vista HP64, XP home

#3 plantj

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Posted 01 December 2005 - 07:46 AM

I am at the office at the moment. I can try that when I get to the house, but the problem is that I don't see any errors when running one stick. Its only in dual channel. So I'm not sure that would really help?

Thanks for the suggestion by the way:)

Oh yeah, and I have all power connectors hooked up.

#4 Guest_Redemption_*

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Posted 01 December 2005 - 08:33 AM

Yea, are you having random restart problems too? Im running OCZ sticks similar to yours sept' they are 512 mg x2. instead of the gig sticks. Changing the voltage makes these errors and restarts less frequent. Highly suggest switching to those bios settings, flashing the CMOS, and if that doesnt work, try RGONE's optimized bios settings ;-) good luck.

#5 Sharp

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Posted 01 December 2005 - 08:38 AM

Maybe my post wasn't clear,

I want you to flash the BIOS to 623-3 using 1 stick. (to avoid a bad flash)
Then turn the PC off.
Clear CMOS
Use both sticks, place them in the orange slots
And try everything I said
:)
MSI P35-Neo2-FR BIOS v1.9
Intel C2D E4500 250x11 2.75Ghz + Scythe Ninja
G.skill PQ series 2x2GB PC2-8000 @1000Mhz 5-5-5-15
Corsair TX 650W PSU
Seagate Barracuda 9 80Gb 8MB SATAII x2
Samsung 160GB external USB Vantec Nexstar
POV nvidia 6800GS, SB Audigy 4
Thermaltake Armour JR black
7, Vista HP64, XP home

#6 plantj

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Posted 01 December 2005 - 09:53 AM

Ah ok I see. I'll try that and see what happens.

Thanks again.

-jd

#7 plantj

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Posted 01 December 2005 - 10:00 AM

I do have to say though...

Without trying to complain or anything because I really don't mind tweaking things and spending lots of time getting things to work..

But I really don't like the idea that to get any RAM to work without errors I would have to spend so much time just to run at stock speeds?

I am fully aware I bought a tweaker's board and all, but man! I feel like i've been spending so much time trying so man different things that i haven't taken the time to use the machine for what I bought it for.

-jd

#8 adamb2k5

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Posted 01 December 2005 - 10:18 AM

I do have to say though...

Without trying to complain or anything because I really don't mind tweaking things and spending lots of time getting things to work..

But I really don't like the idea that to get any RAM to work without errors I would have to spend so much time just to run at stock speeds?

I am fully aware I bought a tweaker's board and all, but man! I feel like i've been spending so much time trying so man different things that i haven't taken the time to use the machine for what I bought it for.

-jd


Cheers to that man. I feel the same way.

#9 yurixewx

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Posted 01 December 2005 - 05:49 PM

yeah seriously, funny thing is my machine works pretty goood. no crashing really... however when I run memtest I get floooded with errors. sigh

#10 rldolph79

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Posted 01 December 2005 - 07:36 PM

But I really don't like the idea that to get any RAM to work without errors I would have to spend so much time just to run at stock speeds?

Your problems aren't typical...most people do just plug in everything and it works. This includes myself, and I'm going on six months without a single crash of any sort. The reason you see so many people on this site having trouble is because it's a support forum...not too many people show up to say that everything's working perfect. Hope everything works out for you...good luck.

#11 M_M

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Posted 02 December 2005 - 04:19 AM

I do have to say though...

Without trying to complain or anything because I really don't mind tweaking things and spending lots of time getting things to work..

But I really don't like the idea that to get any RAM to work without errors I would have to spend so much time just to run at stock speeds?

I am fully aware I bought a tweaker's board and all, but man! I feel like i've been spending so much time trying so man different things that i haven't taken the time to use the machine for what I bought it for.

-jd


I am affraid that it could be that your CPU (its memory controller) is faulty, and not the motherboard. If you have the chance, try your CPU elsewhere, just to be sure...

LOL.

#12 Chowley

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Posted 02 December 2005 - 10:09 AM

Has there been any more progress on this issue ?

I'm in the exact same position as you, I will try a different bios later if i ever actually get windows to install successfully :P.

I really dont want to have to RMA yet another part of this pc.