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TW3X4G4096-1800C8DF in my Asus Rampage Extreme


czm

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Hi

I seem to be having a few issues running my XMS3 TW3X4G4096-1800C8DF in my Rampage extreme mobo, and qx9650.

 

I am trying to get my RAM stable but having a few issues.

 

I have:

 

 

Extreme Tweaker

Ai Overclock Tuner: Manual

OC From Memory Level Up: Auto

FSB Frequency: 450

CPU Ratio Setting: 7

CPU Configuration

C1E Support: Disabled

CPU TM Function: Enabled

Max CPUID Value Limit: Disabled

Vanderpool Technology: Enabled

Execute Disable Bit: Enabled

Core Multi-Processing: Enabled

 

CPU Clock Skew: Auto

NB Clock Skew: Auto

FSB Strap to North Bridge: 333

PCIE Frequency: 100

DRAM Frequency: 1441Mhz

DRAM Command Rate: 2N

DRAM Timing Control: Manual

1st Information: 8-8-8-21-5-74-10-5

CAS# Latency:8

RAS# to CAS# Delay: 8

RAS# Pre Time: 8

RAS# ACT Time: 24

RAS# To RAS# Delay: AUTO

REF Cycle Time: AUTO

WRITE Recovery Time: AUTO

READ to Pre Time: AUTO

2nd Information :9-5-6-4-7-4-7

READ to WRITE Delay (S/D): AUTO

WRITE to READ Delay (S): AUTO

WRITE to READ Delay (D): AUTO

READ to READ (S): AUTO

READ to READ (D): AUTO

WRITE to WRITE (S): AUTO

WRITE to WRITE (D): AUTO

3RD Information: 21-7-1-9-9

WRITE to PRE Delay: AUTO

READ to PRE Delay: AUTO

PRE to PRE Delay: AUTO

ALL PRE to ACT Delay: AUTO

ALL PRE to REF Delay: AUTO

DRAM Static Read Control: disabled

DRAM Dynamic Write Control: disabled

DRAM Skew Control

 

DRAM CMD Skew on Channel A: Auto

DRAM CLK Skew on DIMM A1: Auto

DRAM CLK Skew on DIMM A2: Auto

DRAM CTL Skew on DIMM A1: Auto

DRAM CTL Skew on DIMM A2: Auto

DRAM CMD Skew on Channel B: Auto

DRAM CLK Skew on DIMM B1: Auto

DRAM CLK Skew on DIMM B2: Auto

DRAM CTL Skew on DIMM B1: Auto

DRAM CTL Skew on DIMM B2: Auto

 

 

Ai Clock Twister: Lighter

Ai Transaction Booster: Manual

 

Common Performance Level: 10

Pull-In of CHA PH1: Disabled

Pull-In of CHA PH2: Disabled

Pull-In of CHA PH3: Disabled

Pull-In of CHB PH1: Disabled

Pull-In of CHB PH2: Disabled

Pull-In of CHB PH3: Disabled

 

EPU II Phase Control: Auto

CPU Voltage: 1.31

Load-Line Calibration: Enabled

CPU PLL Voltage: 1.5

FSB Termination Voltage: 1.41

CPU GTLVerf (0): AUTO

CPU GTLVerf (1): AUTO

CPU GTLVerf (2): AUTO

CPU GTLVerf (3): AUTO

NB GTLVerf: AUTO

North Bridge Voltage: 1.42

DRAM Voltage: 1.85

NB DDRVref: AUTO

DDR3 ChannelA Vref: AUTO

DDR3 ChannelB Vref: AUTO

South Bridge 1.5 Voltage: 1.51106

South Bridge 1.05 Voltage: 1.06039

CPU Spread Spectrum: Disabled

PCIE Spread Spectrum: Disabled

 

 

 

I am a bit unsure about the GTL refs etc which I am sure is my issue..however not knowing too much about them I am unsure what to change to try to get stable.

 

I have been able to run memtest no worries at these settings @ 1350Mhz.

 

As this ram is rated at 1800 i would have thought I would be stable at 1441Mhz but fail memtest within 10 mins everytime. Again in need of more tweaking which it where yu guys come in

 

 

I have the CPU running at stock as I have dropped the multi to keep that out of the picture -and have run Intel Burn test and Prime and the CPU is stable.

 

 

Where should I start?

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Ok that lack of help maybe because the tread has got a little confusing.

 

To go back and hopefully clear it up a bit in the hope that some support from Corsair will come my way.

 

I ahve included below a couple of screenies that I currently have fully stable and the max i can get out of my RAM.

 

As you can see I have kept the FSB at 400 because the RAM beocmes unstable no matter what I try on anything over 1600Mhz. The ram is rated at 1800Mhz so that is what is getting to me.

 

I run the CPU at 450FSB and clocked the RAM down and done all the usual stress test and it passes no problem so I know my Mobo/CPU are comfortable running @ 450FSB ( I even managed to get a stable FSB of 465).

So my theory is the RAM is the issue when trying to get 1800MHZ.

 

I have tried tweaking the DRAM clock skews etec etc but nothing seems to help getting anything over 1600Mhz

I am using A2/B2 slots

http://i154.photobucket.com/albums/s246/crazymilk_01/Untitled-29.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/Untitled1-5.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030269.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030270.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030271.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030272.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030273.jpg

 

http://i154.photobucket.com/albums/s246/crazymilk_01/P6030274.jpg

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Thanks for thr reply specmike.

 

Yes I disable the USB Leg support....however

The CPU does not seem to be the issue. I have underclocked the CPU with the 450FSB to make sure that it is stable (Prime and Intel Burn Test Stable). I have the QX quad with the unlocked multi so its no problem to do. ie I have run the CPU at 450x7 = 3150 which is rock solid as long as I clock the RAM below 1600Mhz using the divivders.

As soon as I try to increase the RAM to the rated 1800Mhz that when I get the issues.

 

As I mentioned its the RAM that I think is the issue when trying to run at its rated 1800Mhz (ie 450FSB with 1:2 divider) hence why I am in the Corsair forums.

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If you are confident the CPU is stable running a 450FSB, then that leaves the memory or the memory controller. If the memory is passing Memtest at the slower speeds it's not likely defective per se.

 

When you were testing, did you try 1 module at a time?

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No I am pretty sure that the RAM is not defective as I can pass memtest 24hrs + up to 1600Mhz

 

I think that it is a problem with the Samsung Chips and the X48 Chipset

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