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TW3X4G1600C9DHX question


SonicImaging

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Hi,

 

( I made a mistake and listed the wrong ram, the ram I have is TW3X4G1600C9DHX, Ill change the timings to 9-9-9-24 as listed for this ram and try that )

 

I recently setup my system using 8gig of the TW3X4G1600C9DHX running under vista ultimate 64. The system runs great and is very stable, but for some reason I cant set the memory speed to 1600, it only works on the auto setting and shows 1033.

 

I setup the memory timings as suggested and set the Command Per Clock (CMD) to 2T as suggested for the Q9650 CPU's. Plus I set the voltage from 1.7 to 1.9. Ive tried all 8 gigs(4) and 4 gigs(2), with the same results.

 

Anytime I try to change the mem speed when i save the bios I just get a black screen, If I turn the computer off and on again it gets to the post screen but gives me the warning that its in safe mode and to change the cpu settings

 

Any Thoughts? Unfortunately I purchased this ram without looking closely at the approved ram for the 790i could this be the problem?, but at the auto settings the system is very stable but I think i should be able to get more speed out of the ram.]

 

Thanks in advance and below are all my bios settings.

-Keith

 

 

====== System Clocks ======

CPU Freq, Mhz = 3000.0 - Current = 3000.00

FSB Reference Clock, MHz = 1333.3 - Current = 1333.3

CPU Multiplier [9 X] - Current = 9X

x CPU N/2 Ratio = Disabled

 

PCIe x16_1 & x16_2, Mhz = [AUTO] - Current = 100

PCIe x16_3, Mhz = [AUTO] - Current = 100

SPP<-> Ref Clock, Mhz = [AUTO] - Current = 200

 

** HT Multiplier **

nForce SPP --> nForce MCP [5 x]

nForce SPP <-- nForce MCP [5 x]

 

** Spread Spectrum Setting **

CPU Spread Spectrum = [Disabled]

HT Spread Spectrum = [AUTO]

PCIe Spread Spectrum(SPP) = [Disabled]

PCIe Spread Spectrum(MCP) = [AUTO]

SATA Spread Spectrum = [Disabled]

 

====== FSB & Memory Config ======

*EPP 2.0 Memory = Not Detected

CPU Freq, MHz = 3000.00 = Current = 3000.0

CPU Multiplier = 9X - Current = 9X

FSB - Memory Clock Mode = [Auto]

*FSB - Memory Ratio = [Auto]

*FSB (QDR), Mhz = [AUTO] - Current = 1333.3

Actual FSB (QDR), Mhz = 1333.3

MEM (DDR), Mhz = [Auto] - Current = 1066.7

Actual MEM (DDR), Mhz = 1066.7

 

P1 = [Auto]

P2 = [Auto]

 

====== Memory Timing Setting ======

Memory Timing Setting = [Expert]

tCL (CAS Latency) = [Auto(9)] - Current 9

tRCD = = [Auto(9)] - Current 9

tRP = = [Auto(9)] - Current 9

tRAS = = [Auto(24)] - Current 24

Command Per Clock (CMD) = [2T] - Current 2T

 

** Advanced Memory Settings **

tRRD = [Auto(4)] - Current 4

tRC = [Auto(27)] - Current 27

tWR = [Auto(10)] - Current 10

tWTR = [Auto(14)] - Current 14

tFAW = [Auto(17)] - Current 17

tREF = [Auto] - Current 7.7uS

tRFC = [Auto(59)] - Current 59

 

====== CPU Configuration ======

Limit CPUID MaxVal = [Disabled]

Intel SpeedStep = [Disabled]

x PMM Mode = Native Mode

CPU Termal Control = [Disabled]

C1E Enhanced Halt State = [Enabled]

Execute Disable Bit = [Enabled]

Virtualization Technology = [Enabled]

 

CPU Core 0 = [Enabled]

CPU Core 1 = [Enabled]

CPU Core 2 = [Enabled]

CPU Core 3 = [Enabled]

 

====== System Voltages ======

CPU Core = [Auto] - Current = 1.20V

CPU FSB = [Auto] - Current = 1.1V

Memory = [1.800V] - Current = 1.800V

nForce SPP = [Auto] - Current = 1.30V

nForce MCP = [Auto] - Current = 1.500V

 

GTLVREF Lane 0 = [Auto] - Current = -30mv

GTLVREF Lane 1 = [Auto] - Current = -30mv

GTLVREF Lane 2 = [Auto] - Current = +00mv

GTLVREF Lane 3 = [Auto] - Current = +00mv

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Opps my goof, for some reason I had the ram listed wrong. So now im running stable with these bios settings for the XFX 790i and 8g under vista ultimate 64. The correct ram I have is Corsair CM3X2G1600C9DHX. Im running 8gigs for photoshop cs4 64bit which screams now.

 

Single pass of memtest shows no errors, ill run more tests a bit later.

 

Core temps hover around 35c to 39c for all cores after about 2 hours of normal use thats using air cooling with a Thermaltake / V1 / Multi-Socket 775 / Copper / CPU Cooler

 

Thanks

-Keith

 

====== System Clocks ======

CPU Freq, Mhz = 3600.0 - Current = 3600.0

FSB Reference Clock, MHz = 1600.0 - Current = 1600.0

CPU Multiplier [9 X] - Current = 9 X

x CPU N/2 Ratio = Disabled

 

PCIe x16_1 & x16_2, Mhz = [AUTO] - Current = 100

PCIe x16_3, Mhz = [AUTO] - Current = 100

SPP<-> Ref Clock, Mhz = [AUTO] - Current = 200

 

** HT Multiplier **

nForce SPP --> nForce MCP [5 x]

nForce SPP <-- nForce MCP [5 x]

 

** Spread Spectrum Setting **

CPU Spread Spectrum = [Disabled]

HT Spread Spectrum = [Disabled]

PCIe Spread Spectrum(SPP) = [Disabled]

PCIe Spread Spectrum(MCP) = [Disabled]

SATA Spread Spectrum = [Disabled]

 

====== FSB & Memory Config ======

*EPP 2.0 Memory = Not Detected

CPU Freq, MHz = 3600.0 = Current = 3600.0

CPU Multiplier = 9X - Current = 9X

FSB - Memory Clock Mode = [unlinked]

*FSB - Memory Ratio = [Auto]

*FSB (QDR), Mhz = [1600] - Current = 1600

Actual FSB (QDR), Mhz = 1600.0

MEM (DDR), Mhz = [1600] - Current = 1600

Actual MEM (DDR), Mhz = 1600

 

P1 = [Auto]

P2 = [Auto]

 

====== Memory Timing Setting ======

Memory Timing Setting = [Expert]

tCL (CAS Latency) = [Auto(9)] - Current 9

tRCD = = [Auto(9)] - Current 9

tRP = = [Auto(9)] - Current 9

tRAS = = [Auto(24)] - Current 24

Command Per Clock (CMD) = [2T] - Current 2T

 

** Advanced Memory Settings **

tRRD = [Auto(6)]

tRC = [Auto(41)]

tWR = [Auto(12)]

tWTR = [Auto(16)]

tFAW = [Auto(25)]

tREF = [Auto]

tRFC = [Auto(88)]

 

====== CPU Configuration ======

Limit CPUID MaxVal = [Disabled]

Intel SpeedStep = [Disabled]

x PMM Mode = Native Mode

CPU Termal Control = [Disabled]

C1E Enhanced Halt State = [Disabled]

Execute Disable Bit = [Enabled]

Virtualization Technology = [Enabled]

 

CPU Core 0 = [Enabled]

CPU Core 1 = [Enabled]

CPU Core 2 = [Enabled]

CPU Core 3 = [Enabled]

 

====== System Voltages ======

CPU Core = [Auto] - Current = 1.29V

CPU FSB = [Auto] - Current = 1.3V

Memory = [1.800V] - Current = 1.900V

nForce SPP = [Auto] - Current = 1.30V

nForce MCP = [Auto] - Current = 1.500V

 

GTLVREF Lane 0 = [Auto] - Current = -50mv

GTLVREF Lane 1 = [Auto] - Current = -50mv

GTLVREF Lane 2 = [Auto] - Current = +00mv

GTLVREF Lane 3 = [Auto] - Current = +00mv

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When you populate all four DRAM slots it is advised to drop the bandwidth.

 

Please research this thread:

 

http://www.houseofhelp.com/v3/showthread.php?t=64360&highlight=Unpredictable+results+QUAD2X4096+Gigabyte+X38-DS5

 

The issue is the On Motherboard (Intel) memory controller and a population of all four banks at the full speed of a two bank run. This issue is across the board with both Nvidia and Intel chipset based boards, DDR, DDR2 and DDR3.

 

Keep in mind that often issues arise in the longer term. The issues seldom damage the DRAM. They damage the on motherboard memory controller which has a harder time keeping up with the demands of a four DRAM slot population being run as fast as a two DRAM slot population. Those who want to be secure in their system either purchase a single kit of the DRAM capacity that the four singles have or they move to a higher bandwidth DRAM and drop the bandwidth. I also advise it as I have personally seen the issues that can and often do arise with a four DRAM slot population running at the full speed of a single kit speed.

 

I personally advise for a two stick solution as it is far gentler to the motherboard memory controller.

 

At any rate, I can help you with the settings. Please research the above and understand what has to be done. You will have to drop your bandwidth and raise the voltage on the memory controller. There's no use giving you the settings if you intend on bypassing the advice though. If you do so, hopefully you will not be posting here in the future with problems.

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Thanks for the info, seems like solid advice...

 

I did a few tests with the 2 main programs I use this system with. PhotoShop CS4 64bit and Visual Studio. On either ram speed setting I cant tell the difference with what I use them for in real world situations. I guess you can get a bit number crazy running these benchmarks. The only difference in speed I saw with my tests were between running 4 and 8gigs, So i can say my requirement would be more towards running 8gigs then the higher memory speed. Plus since im generating a large amount of files drive speed is also a big factor.

 

Before I read your response I loaded up the crysis demo last night and played for a while with everything on high and after I restarted the system when i was done I ended up getting the warning error again on post about the settings and to hit F1 to continue or delete to enter bios and reset the settings. I put them back to auto and still played crysis with everything set to high. Could that be because crysis pushes the cpu and memory more?

 

I guess I cant ask more then that. I think ill just stick with the current settings and run the system for a while and familiarize myself with the art of overclocking.

 

Thanks again for your input

-Keith

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  • Corsair Employees
With 4 modules I would suggest setting the memory frequency at DDR1066 or DDR1333 and set the memory Voltage to 1.7-1.90 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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